3.2l - Generic Scan Tool - Engine Code(s): Calb (as of 04.2009)

GENERAL INFORMATION

Included in the contents of this Generic Scan Tool (GST) article is a summary table of the vehicle specific OBD II Emission Related DTCs. The DTC table contains DTC Malfunction Criteria, Threshold Values, Secondary Parameters, Enabling Conditions, Monitoring Time Length, Frequency of Checks, and MIL Illumination information which can be used to accurately monitor and diagnose emissions related faults and perform functions required to run Modes 01 through 09 with a hand held scan tool. For a further description of specific monitor information, an OBD strategy document is referenced throughout this article.

This article also contains the step by step procedures to accurately diagnose and repair a component or system once a DTC has been set. References to repair procedures and wiring diagrams can be found within the diagnostic test procedures.

SAFETY PRECAUTIONS

WARNING

Failure to follow these instructions may result in personal injury or possible death. When performing the drive cycle operation, pay strict attention to driving conditions and observe and obey all posted speed limits. Test equipment must always be secured to the rear seat and operated by a second person. If test and measuring equipment is operated from the passenger seat, the person seated could be injured in the event of an accident involving deployment of the passenger-side airbag. The fuel system is under pressure! Before opening the fuel system, place rags around the connection area. Then release pressure by carefully loosening the connection. The engine section of the fuel system, after the high pressure pump, is under extremely high pressure! When working on engine or fuel injection system, fuel pressure must be relieved to residual pressure before opening high pressure components. Refer to the Service Information for the proper procedure. If the battery has not been disconnected, the fuel pump fuse must be removed before opening the fuel supply system as the fuel pump may be activated by the driver's door contact switch. Testing of the EVAP and ORVR systems can result in the escape of explosive fuel vapor. Do not smoke while testing the EVAP system, and make sure the area you are working in is well ventilated. Observe the following for all procedures, especially in the engine compartment due to lack of room: Route lines of all types (e.g. for fuel, hydraulic, EVAP canister system, coolant and refrigerant, brake fluid, vacuum) and electrical wiring so that the original path is followed. Watch for sufficient clearance to all moving or hot components. Do not touch or disconnect the Ignition Coils, ignition wires, connecting parts or adapter cables when the ignition is on or the engine is running or turning at starting RPM. Only disconnect and reconnect wires for injection and ignition system, including test leads, when the ignition is turned off. When removing and installing components from full or partially full fuel tanks, observe the following: The fuel tank must only be partially full. How much fuel can remain in the fuel tank may be read in the respective work description. Empty the fuel tank if necessary. Before starting work, switch on the exhaust extraction system and place an extraction hose close to the installation opening of the fuel tank to extract escaping fuel fumes. If no exhaust extraction system is available, a radial fan (as long as motor is not in air flow) with a displacement greater than 15 m 3 /h can be used. Prevent fuel from contacting the skin! Wear fuel-resistant gloves! When servicing the engine control module (ECM), it may be necessary to use a heat gun. The heat gun, shear bolts, and parts of the protective housing will become extremely hot. Use extreme caution when working with or handling these parts to avoid personal injury. Observe operating instructions when working with a heat gun. To prevent damage (burning) to the wiring and harness connections, insulation and the electronic components, perform outlined work steps exactly! The cooling system is under pressure. To avoid scalding, use caution when opening the cooling system and servicing cooling system components!

CAUTION

The battery must only be disconnected and connected with the ignition switched off. Otherwise, the engine control module (ECM) can be damaged. The use of nails, paper clips, or another unauthorized materials to back-probe electrical harness connectors is strictly prohibited and may cause damage to the electrical harness connectors, terminal ends or to a component. Use only the manufacturers test lead kit or an equivalent aftermarket test lead kit for back-probing all electrical harness connectors. Do not use sealants containing silicone. Particles of silicone drawn into the engine, will not be burnt in the engine and will damage the oxygen sensors. Secure all hose connections with the correct hose clips (the same as original equipment). If engine is to be cranked without starting, for example as part of a compression test, remove the fuses for the voltage supply of Ignition Coils and the fuel injector. An electrostatic charge can lead to functional problems of electrical components of the engine, transmission and selector lever mechanism. Touch a grounded object, e.g. a water pipe or a hoist, before working on electrical components. Do not make direct contact with electrical harness connector terminals. Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

CLEAN WORKING CONDITIONS

Even minor contaminations can lead to malfunctions in the fuel injection system. When working on the fuel supply/injection system, pay careful attention to the following rules of cleanliness

Thoroughly clean all connections and the surrounding area before disconnecting.
Place removed parts on a clean surface and cover. Use lint-free cloths.
Carefully cover over opened components or seal, if repairs are not performed immediately.
When the system is open, do not work with compressed air. Do not move vehicle unless absolutely necessary.
Install clean components: Remove replacement parts immediately prior to installation. Do not use parts that have been stored unpacked (e.g. in tool boxes etc.).
Separated electrical connectors: Protect from dirt and moisture. Make sure connections are dry when reconnecting.

ON BOARD DIAGNOSTIC SYSTEMS

California OBD-II applies to all gasoline engine vehicles up to 14, 000 lbs. Gross Vehicle Weight Rating (GVWR) starting in the 1996 MY and all diesel engine vehicles up to 14, 000 lbs. GVWR starting in the 1997 MY.

Several states in the northeastern United States have chosen to adopt the California emission regulations starting in the 1998 MY and are known as "Green States".

Green States receive California-certified vehicles for passenger cars and light trucks up to 6, 000 lbs. GVWR. Starting in the 2004 MY, Federal vehicle over 8, 500 lbs. will start phasing in OBD-II.

Starting in 2004 MY, gasoline-fueled medium duty passenger vehicles are required to have OBD-II. Federal OBD-II applies to all gasoline engine vehicles up to 8, 500 lbs. GVWR starting in the 1996 MY and all diesel engine vehicles up to 8, 500 lbs. GVWR starting in the 1997 MY.

OBD-II system implementation and operation is described in the remainder of this document.

MALFUNCTION INDICATOR LAMP ILLUMINATION

If the engine control module (ECM) recognizes a malfunction that leads to increased emission values, it indicates them by illuminating the malfunction indicator lamp (MIL) which is located in the instrument cluster.

The ECM switches on the MIL after the ignition is switched on. Shortly after the engine is started, the MIL goes out if the ECM does not detect a malfunction that increases the emission values.

If the ECM recognizes a malfunction that leads to increased emissions during the operation of the engine, the ECM switches on the MIL and an entry is stored in the DTC memory of the ECM.

CONTROLLER AREA NETWORK DATA LINK

The engine control module (ECM) communicates with data bus capable control modules via a CAN Data Link.

The databus capable control modules are connected via data bus wires, which are twisted together (CAN high and CAN low), and exchange information with the ECM. Missing or implausible information on the databus is recognized and stored as a malfunction based on specific DTC criteria.

The malfunction indicator lamp (MIL) is illuminated as a result of a CAN message sent by the ECM. The MIL can be turned on, turned off, or blink, depending on the message received.

ELECTRONIC POWER CONTROL WARNING LAMP

The engine control module (ECM) monitors electronic power control (EPC) components when the ignition is switched on.

If a malfunction is recognized in the EPC system, the ECM switches on the EPC warning lamp, which is located in the instrument cluster, and an entry is stored in the DTC memory of the ECM.

DESCRIPTION AND OPERATION

FUEL SUPPLY SYSTEM

For all fuel supply system component locations, removal/installation procedures and torque specifications, refer to the appropriate service information.

EVAPORATIVE EMISSION SYSTEM

The evaporative emission system has been designed to minimize the release of hydrocarbons from the fuel system into the atmosphere. The evaporative system components all work together with the ECM to prevent fuel vapor from escaping and route it to the intake manifold to be burned during normal combustion.

The leak detection system checks the integrity of the evaporative emission system by pressurizing system.

When leak detection is activated, a pump pressurizes the evaporative system.
During the leak diagnosis, the system is monitored for a specific time period. If the pressure does not drop a specific amount during the time period, the system is considered to be sealed.
If the pressure drops greater than a specified amount during a specific time period, the system is pressurized once more. The engine control module measures the time until the pressure drops again. The control module uses the measured value to determine the size of the leak.

Leak diagnosis is activated automatically shortly following every engine start. If a malfunction is determined, an entry is made to the DTC memory. The Malfunction Indicator Lamp in the instrument cluster is illuminated if the malfunction is recognized for two subsequent starts.

For all evaporative system component locations, hose routing, removal/installation procedures and torque specifications, refer to the appropriate service information.

ELECTRONIC ENGINE POWER CONTROL

For EPC, the throttle valve is not operated by a cable from the accelerator pedal. There is no mechanical connection between the accelerator pedal and the throttle valve.

The position of the accelerator pedal is communicated to engine control module (ECM) by the throttle position sensor / accelerator pedal position sensor 2 (variable resistances; stored in one housing) that are connected with the accelerator pedal.

The accelerator pedal position (driver's intention) is a main input unit for the ECM.

Operation of the throttle valve occurs via an electric motor, the throttle drive for in the throttle valve control module. This is true across the entire engine speed and engine load spectrum.

The throttle valve is operated by the EPC according to specifications of engine control module (ECM).

With engine off and ignition switched on, the ECM controls the throttle drive according to specifications of throttle position sensor / accelerator pedal position sensor 2. This means, if the accelerator pedal is pressed half way, the throttle drive opens the throttle valve to the same degree; i.e. throttle valve is then opened approximately half way.

With engine running under load, ECM can open or close the throttle valve independently of the throttle position sensor / accelerator pedal position sensor 2.

This means, for example, that the throttle valve could be fully opened even though the accelerator pedal has only been pressed half way. This has the advantage of preventing torque losses at the throttle valve.

In addition, it results in a significant reduction in emissions and fuel consumption under certain load conditions.

It would be incorrect to think that EPC consists of only one or two components. EPC is much more of a system containing all components that contribute to recognizing, controlling and monitoring the position of the throttle valve.

FUEL INJECTION SYSTEM

For all fuel injection system component locations, removal/installation procedures and torque specifications, refer to the appropriate service information.

ENGINE CONTROL MODULE

The ECM regulates fuel injection, throttle valve control module, oxygen sensor regulation, ignition, knock control, evaporative emission purge valve, engine speed limitation through the fuel injectors or the power supply relay, as well as OBD functions. For locations, removal/installation procedures, refer to the appropriate service information.

EXHAUST SYSTEM COMPONENTS

For all exhaust system, emission control component locations, removal/installation procedures and torque specifications, refer to the appropriate service information.

SECONDARY AIR INJECTION SYSTEM

The secondary air injection system improves the secondary oxidation within the catalytic converter which are due to the rich mixture during the cold start phase where the exhaust emissions contain an increased level of unburned hydrocarbons, thereby reducing harmful emissions. The heat released by secondary oxidation shortens the startup time of the catalytic converter considerably, as well as significantly improves emissions quality during the cold-running phase.

During a cold start, the secondary air injection system injects air behind the exhaust valves. This produces an oxygen rich exhaust gas, causes the after burning and reduces the heating-up phase of the catalytic converter.
In addition, the secondary air injection system is switched on (after a delay) during idle after every subsequent engine start (up to a maximum coolant temperature) and is checked through on board diagnostic functions.

For all secondary air injection system component locations, removal/installation procedures and torque specifications, refer to the appropriate service information.

IGNITION SYSTEM

For all ignition and glow plug system component locations, removal/installation procedures and torque specifications, refer to the appropriate service information.

AUTOMATIC TRANSMISSION

The transmission control module receives information from transmission related components and uses this information to control shifting and operation of the transmission.

For all automatic transmission component locations, removal/installation procedures and torque specifications, refer to the appropriate service information.

PRELIMINARY CHECK

Prior to component diagnosis, a preliminary check must be performed.

Connect the scan tool.

Switch the ignition on.

Using the scan tool, check for any stored or related DTCs.

If other DTCs are stored

Repair these DTCs first before performing the following procedure.

If no other DTCs are stored

Using the scan tool, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to attempt to duplicate the customers complaint.

If the DTC returns

Perform the diagnostic procedure.

If the DTC does not return

The fault is intermittent or a sporadic condition may exist.

Check the suspected component, electrical harness and electrical harness connectors for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

Perform a road test to verify the repair.

If the DTC returns

Perform the diagnostic procedure.

If the DTC does not return

The fault may have been the result of a loose electrical connection.

Generate readiness code. Refer to READINESS CODE .

READINESS CODE

Readiness code description

Diagnostics are performed at regular intervals during normal vehicle operation. After repairing an emissions related system, a readiness code is generated by road testing the vehicle.

If a malfunction is recognized during the drive cycle, it will be stored in the DTC memory.

The OBD drive cycle operation will be monitored with a hand held diagnostic tool.

The readiness code is erased every time the DTC memory is erased or any time the battery is disconnected. If the DTC memory has been erased or the battery is disconnected, a new readiness code must be generated.

Only erase the DTC memory if a DTC has been stored.

General recommendations

Most monitors will complete easier and quicker using a "steady-foot" and "smooth" acceleration during the drive cycle operation, cruise, and acceleration modes.

Operating conditions

For the EVAP monitor test, the coolant temperature and the ambient air temperature must be between 10° C and 35° C with a difference between them no greater than 4° C. The ambient air temperature must not change more than 4° C during the drive cycle procedure (e.g. when driving out of a heated workshop in the winter).

Test requirements

Erase the DTC memory.
Coolant temperature must be between 80° C and 110° C.
The intake air temperature must be between 10° C and 35° C.
Battery voltage must be a minimum of 12.5 volts.
Fuel tank level 1/4 to 3/4 full.

Drive Cycle Procedure

Connect the scan tool.

Switch the ignition on and start the vehicle.

Idle the vehicle for 2-3 minutes. This executes the O2 heater, misfire, secondary air injection, fuel trim, and purge system monitors.

Drive the vehicle at 45-55 mph for a continuous 7-minute period - avoid stopping. This executes the evaporative, O2 sensor, fuel trim, and misfire monitors.

Accelerate the vehicle to an engine speed of 5000 RPM; lift off the throttle until the engine speed is around 1200 rpm. This executes the fuel cut off.

Accelerate the vehicle smoothly to 60-65 mph, cruise constantly for 5 min, this executes the catalyst; O2 sensor, misfire, fuel trim, and purge system monitors.

Decelerate and idle the vehicle again for 3 minutes. This executes the misfire, secondary sir injection, fuel trim, and purge system monitors.

Check the status of the readiness code.

Note. Depending on the scan tool used. The readiness code status may be displayed as complete, passed or OK.

If any engine monitor fails the drive cycle test. Repeat the drive cycle test until all engine monitors have successfully run through and passed.

Note. When repeating the drive cycle operation for a failed evaporative or thermostat monitor, allow the engine to cool until the coolant temperature and the ambient air temperature are be between 10° C and 35° C with a difference no greater than 4° C and repeat the drive cycle operation.

If the drive cycle operation fails again.

Check the DTC memory for stored DTCs.

Repair the vehicle if necessary.

Repeat the drive cycle operation until all engine monitors have successfully run through and passed.

Remove the scan tool and switch the ignition off.

DIAGNOSTIC MODES 01 - 09

The information provided in Modes 01 through 09 displays the various levels of emission related data that may be monitored, as well as the ability to retrieve and read stored DTC trouble codes, erase stored DTC trouble codes, generate readiness codes, and select the various PIDs and Test-IDs used within the modes to monitor the engine, and emission related component parameters.

Note. Depending on scan tool and protocol used, the information in diagnostic mode 01 may be referred to by different names such as Test-ID (TID), Hex-ID, Component-ID (CID), or On-Board Diagnostic Monitor Identifier (OBDMID).

DIAGNOSTIC MODE 01 - READ CURRENT SYSTEM DATA

Diagnostic Mode 01 makes it possible to access current emissions-related measured values and diagnostic data. The original measured values (no replacement values), input and output data and system status information are displayed using Diagnostic Mode 1.

Test Requirement

Coolant temperature at least 80 °C.

Procedure

Connect the scan tool.

Start the engine and run at idle.

Select "Diagnostic Mode 1: Obtain data.".

From the following table, select the desired the "PID" that is to be monitored, e.g. "PID $05 Coolant temperature".

The current values of the component or system that is being monitored will be displayed on the scan tool screen.

PID	Component or System
$00	Supported definition PIDs $01 thru $20
$01	Monitoring status since erasing DTC memory
$03	Condition of fuel system
$04	Calculated load value
$05	Coolant temperature
$06	Short term air fuel ratio Bank 1
$07	Long term air fuel ratio Bank 1
$08	Short term air fuel ratio Bank 2
$09	Long term air fuel ratio Bank 2
$0B	Intake manifold pressure
$0C	Engine RPM
$0D	Vehicle speed
$0E	Ignition timing advance for #1 cylinder
$0F	Intake air temperature
$10	Air flow rate from mass air flow sensor
$11	Absolute throttle position
$12	Secondary Air Injection
$13	Oxygen Sensor Bank 1 Sensor 1
$15	Oxygen Sensor Bank 1 Sensor 2
$19	Oxygen Sensor Bank 2 Sensor 2
$1C	OBD requirements
$1F	Time since engine start
$20	Supported definition PIDs $21 thru $40
$21	Distance driven with MIL ON
$23	Fuel rail pressure
$2E	Commanded evap purge
$30	Warm up counts after MIL erased
$31	Distance driven after erasing DTC memory
$33	Barometric pressure
$34	Heater current Bank 1 Sensor 1
$38	Heater current Bank 2 Sensor 1
$3C	Catalyst temp Bank 1 - Sensor 1
$3D	Catalyst temp Bank 2 - Sensor 1
$40	Supported definition PIDs $41 thru $60
$41	Monitor status current drive cycle
$42	Control module voltage
$43	Absolute load value
$44	Specified value of oxygen sensor signal
$45	Relative throttle valve position
$46	Ambient temperature
$47	Throttle valve position 2 absolute
$49	Accelerator pedal position 1 absolute
$4A	Accelerator pedal position 2 absolute
$4C	Specified throttle valve position
$56	Offset oxygen sensor regulation after catalytic convertor Bank 1 / Bank 3
$58	Offset oxygen sensor regulation after catalytic convertor Bank 2 / Bank 4
$60	Supported definition PIDs $61 thru $80
$68	Intake Air Temp. (IAT) Bank 1 Sens. 1
$6F	Turbocharger Compressor Inlet Pressure Sensor A
$70	Boost Pressure Sensor A Boost Pressure Sensor B
$77	Charger Air Cooler Temp. (CACT) Bank 1 Sensor 1 Bank 2 Sensor 1

Switch the ignition off.

DIAGNOSTIC MODE 02 - READ OPERATING CONDITIONS

When an emissions-related fault (pending DTC, visible in mode 07) is first detected, operating conditions are stored. Mode 02 makes it possible to access this freeze frame data as soon as this fault is shown in mode 03. Each control module only shows freeze frame data for one fault via mode 02. Therefore, there are two priority levels. If there is a malfunction with higher priority, the freeze frame data is overwritten.

Fault with higher priority: Misfire malfunction or fuel trim malfunction.

Fault with normal priority: All other emissions-related faults.

Note. Depending on scan tool and protocol used, the information in diagnostic mode 02 may be referred to by different names such as Test-ID (TID), Hex-ID, Component-ID (CID), or On-Board Diagnostic Monitor Identifier (OBDMID).

Connect the scan tool.

Start the engine and run at idle.

Note. If the engine does not start, crank the engine using starter for at least 5 seconds, do not switch the ignition off afterward under any circumstances.

Select "Diagnostic Mode 2: Obtain operating conditions.".

From the following table, select the desired the "PID", e.g. "PID 05-Coolant temperature" that is to be monitored.

The current values of the component or system that is being monitored will be displayed on the scan tool screen.

PID	Component or System
$00	Supported definition pids, $01 thru $20
$02	Fault code that caused the freeze frame to be stored
$03	Fuel system status
$04	Calculated load value
$05	Coolant temperature
$06	Oxygen sensor integrator Bank 1
$07	Oxygen sensor adaptation value Bank 1
$08	Oxygen sensor integrator Bank 2
$09	Oxygen sensor adaptation value Bank 2
$0B	Intake manifold pressure
$0C	Engine RPM
$0D	Vehicle speed
$0E	Ignition timing advance for #1 cylinder
$12	Secondary Air Injection
$1F	Time after engine start
$20	Supported definition PIDs $21 thru $40
$23	Fuel rail pressure
$2E	Commanded evap purge
$33	Barometric pressure
$40	Supported definition PIDs $41 thru $60
$42	Control module voltage
$43	Absolute load value
$44	Specified value of oxygen sensor signal
$45	Relative throttle valve position
$46	Ambient temperature
$47	Throttle valve position 2 absolute
$49	Accelerator pedal position 1 absolute
$4A	Accelerator pedal position 2 absolute
$4C	Specified throttle valve position
$56	Ambient pressure
$58	Offset oxygen sensor regulation after catalytic convertor Bank 2
$60	Supported definition PIDs $61 thru $80
$68	Intake Air Temp. (IAT) Bank 1 Sensor 1
$6F	Turbocharger Compressor Inlet Press. Sensor A
$70	Boost Pressure Sensor A Boost Pressure Sensor B
$77	Charger Air Cooler Temperature (CACT) Bank 1 Sensor 1 Bank 2 Sensor 1

Switch the ignition off.

DIAGNOSTIC MODE 03 - READ DTC MEMORY

Diagnostic Mode 03 makes it possible to read emissions-related faults (confirmed DTCs: faults which have activated the MIL) in the ECM and in the TCM.

When the ECM recognizes an emission related fault it turns on the malfunction indicator lamp. If an electronic throttle malfunction is recognized, the ECM turns on the electronic power control warning lamp. Both are located in the instrument cluster.

The DTCs are sorted by SAE code with the DTC tables consisting of a 5-digit alpha-numeric value.

Note. Depending on scan tool and protocol used, diagnostic mode 03 and the information provided may be referred to by a different name.

The following tables provide a breakdown and explanation of the DTC code.

P-Codes

Component group
P	X	X	X	X	DTC for the drivetrain
Norm-Code
P	0	X	X	X	Trouble codes defined by SAE with specified malfunction texts
P	1	X	X	X	Additional emission relevant DTCs provided by the manufacturer
P	2	X	X	X	DTCs defined by SAE with specified texts, from MY 2000
P	3	X	X	X	Additional emission relevant DTCs provided by the manufacturer from MY 2000

Component group
Repair group
P	X	0	X	X	Fuel and air mixture and additional emission regulations
P	X	1	X	X	Fuel and air ratios
P	X	2	X	X	Fuel and air ratios
P	X	3	X	X	Ignition system
P	X	4	X	X	Additional exhaust system
P	X	5	X	X	Speed and idle control
P	X	6	X	X	Control module and output signals
P	X	7	X	X	Transmission
P	X	8	X	X	Transmission
P	X	9	X	X	Control modules, input and output signals

U-Codes

Component group
U	X	X	X	X	DTC for network (CAN bus)
Norm-Code
U	0	X	X	X	Trouble codes defined by SAE with specified malfunction texts

Procedure

Connect the scan tool.

Switch the ignition to the ON position.

Select Diagnostic Mode 03: Interrogating fault memory.

The stored DTC or DTCs will be displayed on the scan tool screen.

The following table is an example of the DTC information that may be displayed on the scan tool screen

Indication example	Explanation
P0444	SAE Diagnostic Trouble Code
Evaporative emission canister purge regulator valve	Malfunctioning wiring path or malfunctioning component
Circuit open	Malfunction type as next

Refer to the DTC tables for the diagnostic repair procedures.

Switch the ignition off.

DIAGNOSTIC MODE 04 - ERASE DTC MEMORY

Diagnostic Mode 04 makes it possible to erase the DTC memory and to reset all emissions-related diagnostic data. In that way, all faults in the DTC memory in the ECM and TCM are erased. The adaptation values may also be reset.

Emissions-related diagnostic data includes (as applicable)

MIL Status
Number of DTCs
Readiness bits
Confirmed DTCs
Pending DTCs
DTC that belongs to freeze frame
Freeze frame data
Test results of specific diagnostic functions
Distance driven with "MIL ON"
Number of warm-up cycles after erasing the DTC memory
Distance driven after erasing the DTC memory
Misfire counter

Note. Depending on scan tool and protocol used, diagnostic mode 04 and the information provided may be referred to by a different name.

Procedure

Connect the scan tool.

Switch the ignition on.

Select Diagnostic Mode 03: Interrogating fault memory.

Then select Mode 4: Reset/delete diagnostic data.

The scan tool will display: Diagnostic data are being erased.

Switch the ignition off.

DIAGNOSTIC MODE 05 - READ OXYGEN SENSOR MONITORING TEST RESULTS

Note. Mode 05 may not be supported on all systems. On systems where Diagnostic Mode 05 is not supported, refer to Diagnostic Mode 6 for oxygen sensor Monitoring Test Results.

DIAGNOSTIC MODE 06 - READ TEST RESULTS FOR SPECIFIC DIAGNOSTIC FUNCTIONS

Diagnostic Mode 06 makes it possible to retrieve test results for special components and systems which are continuously or not continuously monitored. If the diagnosis of a system is complete, the diagnostic result and the corresponding thresholds are saved and displayed in mode 06. This data remains saved (even with the ignition off) until either new diagnostic results become available or the DTC memory is erased.

The min & max values for each individual test in Mode 06 represent the min & max operating values for a properly operating system. This data is provided to the individual aftermarket scan tool companies for development of their scan tool. Depending on the scan tool being used, the min & max values shown may vary, or be rounded up or down to the nearest decimal point depending on the aftermarket scan tool company's development process. e.g.

	Minimum Value
0.3499
Aftermarket scan tool display	0.35

Depending on the scan tool and protocol used, the information displayed in Diagnostic Mode 06 may be referred to by different names such as Test-ID (TID), Hex-ID, Component-ID (CID), On-Board Diagnostic Monitor Identifier (OBDMID), or contain no name at all and may be referenced by only a number.

Note. Depending on the scan tool and protocol used, the information displayed in diagnostic mode 06 may be referred to by different names such as Test-ID (TID), Hex-ID, Component-ID (CID), or On-Board Diagnostic Monitor Identifier (OBDMID).

Test Requirements

Exhaust system must be properly sealed between the catalytic converter and the cylinder heads.
No DTCs stored in the DTC memory.
Coolant temperature at least 80 °C.

Work Procedure

Connect the scan tool.

Start the engine and let run at idle speed.

Select Mode 6: Check test the results of components that are not continuously monitored.

Select the desired Test-ID..

The current minimum and maximum values will be displayed on the scan tool screen.

The following table is a numerical list of all "Test-IDs" or "Hex-IDs" that may be selected.

Test-ID (Hex-ID)	Component or System
MONITOR-ID 01 ($01) : OXYGEN SENSOR MONITOR BANK 1 - SENSOR 1	Oxygen Sensor Monitor Bank 1 - Sensor 1
MONITOR-ID 02 ($02): OXYGEN SENSOR MONITOR BANK 1- SENSOR 2	Oxygen Sensor Monitor Bank 1 - Sensor 2
MONITOR-ID 05 ($05) : OXYGEN SENSOR MONITOR BANK 2 - SENSOR 1	Oxygen Sensor Monitor Bank 2 - Sensor 1
MONITOR-ID 06 ($06): OXYGEN SENSOR MONITOR BANK 2 - SENSOR 2	Oxygen Sensor Monitor Bank 2 - Sensor 2
MONITOR-ID $21 (33): CATALYTIC CONVERTER MONITORING BANK 1	Catalytic Converter Monitoring Bank 1
MONITOR-ID $22 (34): CATALYTIC CONVERTER MONITORING BANK 2	Catalytic Converter Monitoring Bank 2
MONITOR-ID $35 (53) : CAM SHAFT ADJUSTMENT IVVT BANK 1	Cam Shaft Adjustment IVVT Bank 1
MONITOR-ID $36 (54) : CAM SHAFT ADJUSTMENT IVVT BANK 2	Cam Shaft Adjustment IVVT Bank 2
MONITOR-ID $3A (58) : FUEL TANK EVAP SYSTEM INTEGRITY/LEAK TEST (0.90")	Fuel Tank EVAP System Integrity / LeakTest (0.90")
MONITOR-ID $3B (59) : FUEL TANK EVAP SYSTEM INTEGRITY/LEAK TEST (0.40/1.0MM)	Fuel Tank EVAP System Integrity / LeakTest (0.40/1.0mm)
MONITOR-ID $3C (60) : FUEL TANK EVAP SYSTEM INTEGRITY/LEAK TEST (0.20/0.5MM)	Fuel Tank EVAP System Integrity / LeakTest (0.20/0.5mm)
MONITOR-ID $3D (61) : EVAP VALVE FUNCTION CHECK	EVAP Valve Function Check
MONITOR-ID $41 (65) : OXYGEN SENSOR HEATER MONITOR BANK 1 - SENSOR 1	Oxygen Sensor Heater Monitor Bank 1 - Sensor 1
MONITOR-ID $45 (69) : OXYGEN SENSOR HEATER MONITOR BANK 2 - SENSOR 1	Oxygen Sensor Heater Monitor Bank 2 - Sensor 1
MONITOR-ID 66 ($42): OXYGEN SENSOR HEATER MONITOR BANK 1 - SENSOR 2	Oxygen Sensor Heater Monitor Bank 1 - Sensor 2
MONITOR-ID 70 ($46): OXYGEN SENSOR HEATER MONITOR BANK 2- SENSOR 2	Oxygen Sensor Heater Monitor Bank 2- Sensor 2
MONITOR-ID $71 (113) : SECONDARY AIR SYSTEM BANK 1	Secondary air system Bank 1
MONITOR-ID $72 (114) : SECONDARY AIR SYSTEM BANK 2	Secondary air system Bank 2
ODBMID A2 : MIS-FIRE CYLINDER 1 DATA	Mis-Fire Cylinder 1 Data
ODBMID A3: MIS-FIRE CYLINDER 2 DATA	Mis-Fire Cylinder 2 Data
ODBMID A4: MIS-FIRE CYLINDER 3 DATA	Mis-Fire Cylinder 3 Data
ODBMID A5 : MIS-FIRE CYLINDER 4 DATA	Mis-Fire Cylinder 4 Data
ODBMID A6 : MIS-FIRE CYLINDER 5 DATA	Mis-Fire Cylinder 5 Data
ODBMID A7 : MIS-FIRE CYLINDER 6 DATA	Mis-Fire Cylinder 6 Data

Monitor-ID 01 ($01) : Oxygen Sensor Monitor Bank 1 - Sensor 1

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 01 ".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
131 ($83)	P0133	Response Check.	0.00 V	0.800	Refer to DTC P0133 in the DTC summary table. DTC TABLES .

If any components or systems fail to meet the specified values. Refer to Diagnostic "Mode 03: Interrogating Fault Memory" to check for stored DTC or the corresponding diagnostic repair procedure DIAGNOSTIC MODE 03 - READ DTC MEMORY .

Switch the ignition off.

Monitor-ID 02 ($02): Oxygen Sensor Monitor Bank 1- Sensor 2

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 02".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
01 ($01)		Voltage threshold from rich to lean (fixed value).	708.9 mV	708.9 mV
02 ($02)		Voltage threshold from lean to rich (fixed value).	708.9 mV	708.9 mV
05 ($05)	P0139	Output Voltage (signal activity) Check.	0	0.50	Refer to DTC P0139 in the DTC summary table. DTC TABLES .
07 ($07)		Minimum oxygen sensor voltage value in test.	20 mV	7995 mV
08 ($08)		Maximum oxygen sensor voltage value in test.	0 mV	1201 mV
129 ($81)	P0136	Output Voltage (signal activity) Check.	0 V		Refer to DTC P0136 in the DTC summary table. DTC TABLES
130 ($82)	P0136	Output Voltage (signal activity) Check.	718 mV	7995 mV	Refer to DTC P0136 in the DTC summary table. DTC TABLES
131 ($83)	P0136	Output Voltage (signal activity) Check.	0 mV	151.5 mV	Refer to DTC P0136 in the DTC summary table. DTC TABLES

Switch the ignition off.

Monitor-ID 05 ($05) : Oxygen Sensor Monitor Bank 2 - Sensor 1

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 05 ".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
131 ($83)	P0153	Response Check.	0.00 V	0.800	Refer to DTC P0153 in the DTC summary table. DTC TABLES .

Switch the ignition off.

Monitor-ID 06 ($06): Oxygen Sensor Monitor Bank 2 - Sensor 2

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 06".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
01 ($01)		Voltage threshold from rich to lean (fixed value).	708.9 mV	708.9 mV
02 ($02)		Voltage threshold from lean to rich (fixed value).	708.9 mV	708.9 mV
05 ($05)		Output Voltage (signal activity) Check.	0	0.50
07 ($07)		Minimum oxygen sensor voltage value in test.	20 mV	7995 mV
08 ($08)		Maximum oxygen sensor voltage value in test.	0 mV	1201 V
129 ($81)	P0156	Output Voltage (signal activity) Check.	0 V	690 mV	Refer to DTC P0156 in the DTC summary table. DTC TABLES
130 ($82)	P0156	Output Voltage (signal activity) Check.	718 mV	7995 mV	Refer to DTC P0156 in the DTC summary table. DTC TABLES
131 ($83)	P0156	Output Voltage (signal activity) Check.	0 mV	151.5 mV	Refer to DTC P0156 in the DTC summary table. DTC TABLES

Switch the ignition off.

Monitor-ID $21 (33): Catalytic Converter Monitoring Bank 1

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID $21".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
132 ($84)	P0420	Catalytic converter monitoring bank 1.	0 mV	1250 mV	Refer to DTC P0420 in the DTC summary table. DTC TABLES .

Switch the ignition off

Monitor-ID $22 (34): Catalytic Converter Monitoring Bank 2

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID $22".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
132 ($84)	P0420	Catalytic converter monitoring bank 1.	0 mV	1250 mV	Refer to DTC P0420 in the DTC summary table. DTC TABLES .

Switch the ignition off

Monitor-ID $35 (53) : Cam Shaft Adjustment IVVT Bank 1

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 53".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
128 ($80)	P0011	VVT diagnosis target position is not reached.	0	10.235	Refer to DTC P0011 in the DTC summary table. DTC TABLES
129 ($81)	P000A	VVT diagnosis target position Slow Response	10.125	655.35	Refer to DTC P000A in the DTC summary table. DTC TABLES
($82) 130	P0014	Camshaft Position Timing - Over-Advanced (Bank 1)	0	10.125	Refer to DTC P0014 in the DTC summary table. DTC TABLES
($83) 131	P000B	Camshaft Position Slow Response (Bank 1)	10.125	655.35	Refer to DTC P000B n the DTC summary table. DTC TABLES

Switch the ignition off.

Monitor-ID $36(54 : Cam Shaft Adjustment IVVT Bank 2

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 54".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
128 ($80)	P0021	VVT diagnosis target position is not reached.	0	10.125	Refer to DTC P0021 in the DTC summary table. DTC TABLES
129 ($81)	P000C	VVT diagnosis target position Slow Response	10.125	655.35	Refer to DTC P000C in the DTC summary table. DTC TABLES
($82) 130	P0024	Camshaft Position Timing - Over-Advanced (Bank 1)	0	10.125	Refer to DTC P0024 in the DTC summary table. DTC TABLES
($83) 131	P000D	Camshaft Position Slow Response (Bank 2)	10.125	655.35	Refer to DTC P000D in the DTC summary table. DTC TABLES

Switch the ignition off.

Monitor-ID $3A (58) : Fuel Tank EVAP System Integrity/Leak Test (0.90”)

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 58 ".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
129 ($81)	P0455	Tank leak test: Large leak.	650...700 mSec	65535 mSec	Refer to DTC P0455 in the DTC summary table. DTC TABLES .

Switch the ignition off.

Monitor-ID $3B (59) : Fuel Tank EVAP System Integrity/Leak Test (0.40/1.0mm)

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 59".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
129 ($81)	P0442	Fuel Tank Leak Test: Small leak.	1060...1300 mSec	65535 mSec	Refer to DTC P0442 in the DTC summary table. DTC TABLES .

Switch the ignition off.

Monitor-ID $3C (60) : Fuel Tank EVAP System Integrity/Leak Test (0.20/0.5mm)

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 60".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
129 ($81)	P0456	Tank leak test: Pinhole leak (0.5 mm).	4000...5500 mSec	65535 mSec	Refer to DTC P0456 in the DTC summary table. DTC TABLES .

Switch the ignition off.

Monitor-ID $3D (61) : EVAP Valve Function Check

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 61".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
128 ($80)	P0441	Tank vent valve check from % DTEV: Active test Air balance at idle OK, (Normal operation and short test 70).	0 %	100%	Refer to DTC P0441 in the DTC summary table. DTC TABLES .
130 ($82)	P0441	Tank vent valve check from %DTEV: Active test, Oxygen sensor regulator deviating in lean direction (can only test OK), (Normal operation and short test 70).	0%	100%	Refer to DTC P0441 in the DTC summary table. DTC TABLES
130 ($82)	P0441	Tank vent valve check from %DTEV: Active test, Oxygen sensor regulator deviation in rich direction (can only test OK), (Normal operation and short test 70).	10	0.07	Refer to DTC P0441 in the DTC summary table. DTC TABLES
131 ($83)	P0441		0.020	1.999	Refer to DTC P0441 in the DTC summary table. DTC TABLES

Switch the ignition off.

Monitor-ID $41 (65) : Oxygen Sensor Heater Monitor Bank 1 - Sensor 1

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 65".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
133 ($85)	P0135	Oxygen sensor heating in front of catalytic converter, diagnosis, Bank 1 (Constant oxygen sensor monitoring with CJI25). Ceramic temperature monitoring.	+ 680 °C	860 °C	Refer to DTC P0135 in the DTC summary table. DTC TABLES .

Monitor-ID $45 (69) : Oxygen Sensor Heater Monitor Bank 2 - Sensor 1

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 69".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
133 ($85)	P0155	Oxygen sensor heating in front of catalytic converter, diagnosis, Bank 2 (Constant oxygen sensor monitoring with CJI25). Ceramic temperature monitoring.	+ 680 °C	860 °C	Refer to DTC P0155 in the DTC summary table. DTC TABLES .

Switch the ignition off.

Monitor-ID 66 ($42): Oxygen Sensor Heater Monitor Bank 1 - Sensor 2

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 66".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
129 ($81)	P0141	Oxygen sensor heating behind catalytic converter, diagnosis, Bank 1 Nernst cell internal resistance test.	3700ohms	12700ohms	Refer to DTC P0141 in the DTC summary table. DTC TABLES .

Monitor-ID 70 ($46): Oxygen Sensor Heater Monitor Bank 2- Sensor 2

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 70".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
129 ($81)	P0161	Oxygen sensor heating behind catalytic converter, diagnosis, Bank 2 Nernst cell internal resistance test.	3700ohms	12700ohms	Refer to DTC P0161 in the DTC summary table. DTC TABLES .

Switch the ignition off.

Monitor-ID $71 (113) : Secondary air system Bank 1

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 113".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
128 ($80)		Examination secondary air system, examination for reduced secondary air mass.	0.398 counts	65535 counts
129 ($81)	P2440	Examination secondary air valve leakage (combination valve does not close).	0	1.25

Monitor-ID $72 (114) : Secondary air system Bank 2

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "Monitor-ID 113".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min.	Max.	Additional Information
128 ($80)		Examination secondary air system, examination for reduced secondary air mass.	0.398 counts	65535 counts
129 ($81)	P2442	Examination secondary air valve leakage (combination valve does not close).	0	1.25

ODBMID A2 : Mis-Fire Cylinder 1 Data

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "ODBMID A2".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min./Max. Values		Additional Information
11 ($0B)	P0301	Misfire cylinder 1, Average value over 10 Driving Cycles.	0 - 65535 (counts)		Refer to DTC P0301 in the DTC summary table. DTC TABLES .
12 ($0C)	P0301	Misfire cylinder 1, in this Driving Cycle.	0 - 65535 (counts)		Refer to DTC P0301 in the DTC summary table. DTC TABLES .

Switch the ignition off.

ODBMID A3: Mis-Fire Cylinder 2 Data

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6 Check test the results of components that are not continuously monitored".

Select "ODBMID A3:".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min./Max. Values		Additional Information
11 ($0B)	P0302	Misfire cylinder 2, Average value over 10 Driving Cycles.	0 - 65535 (counts)		Refer to DTC P0302 in the DTC summary table. DTC TABLES .
12 ($0C)	P0302	Misfire cylinder 2, in this Driving Cycle.	0 - 65535 (counts)		Refer to DTC P0302 in the DTC summary table. DTC TABLES .

Switch the ignition off.

ODBMID A4: Mis-Fire Cylinder 3 Data

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "ODBMID A4".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min./Max. Values		Additional Information
11 ($0B)	P0303	Misfire cylinder 3, Average value over 10 Driving Cycles.	0 - 65535 (counts)		Refer to DTC P0303 in the DTC summary table. DTC TABLES .
12 ($0C)	P0303	Misfire cylinder 3, in this Driving Cycle.	0 - 65535 (counts)		Refer to DTC P0303 in the DTC summary table. DTC TABLES .

Switch the ignition off.

ODBMID A5 : Mis-Fire Cylinder 4 Data

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "ODBMID A5".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min./Max. Values		Additional Information
11 ($0B)	P0304	Misfire cylinder 4, Average value over 10 Driving Cycles.	0 - 65535 (counts)		Refer to DTC P0304 in the DTC summary table. DTC TABLES .
12 ($0C)	P0304	Misfire cylinder 4, in this Driving Cycle.	0 - 65535 (counts)		Refer to DTC P0304 in the DTC summary table. DTC TABLES .

ODBMID A6 : Mis-Fire Cylinder 5 Data

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "ODBMID A5".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min./Max. Values		Additional Information
11 ($0B)	P0305	Misfire cylinder 5, Average value over 10 Driving Cycles.	0 - 65535 (counts)		Refer to DTC P0305 in the DTC summary table. DTC TABLES .
12 ($0C)	P0305	Misfire cylinder 5, in this Driving Cycle.	0 - 65535 (counts)		Refer to DTC P0305 in the DTC summary table. DTC TABLES .

Switch the ignition off.

ODBMID A7 : Mis-Fire Cylinder 6 Data

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6: Check test the results of components that are not continuously monitored".

Select "ODBMID A5".

Select the desired "Test-ID (TID)" or "Hex-ID".

Check specified values at idle.

Test-ID (TID) (Hex-ID)	DTC	Component or System	Min./Max. Values		Additional Information
11 ($0B)	P0306	Misfire cylinder 6, Average value over 10 Driving Cycles.	0 - 65535 (counts)		Refer to DTC P0306 in the DTC summary table. DTC TABLES .
12 ($0C)	P0306	Misfire cylinder 6, in this Driving Cycle.	0 - 65535 (counts)		Refer to DTC P0306 in the DTC summary table. DTC TABLES .

Switch the ignition off.

DIAGNOSTIC MODE 07 - READ FAULTS DETECTED DURING THE CURRENT OR LAST DRIVING CYCLE

Mode 07 makes it possible to check emissions-related faults which appeared during the current or last driving cycle (pending DTCs).

A pending DTC is saved the first time a fault is detected (output via Mode 07).

If the fault is detected again by the end of the following driving cycle, a confirmed DTC is entered (output via Mode 03) and the MIL is activated.

If this malfunction is not detected again by the end of the following driving cycle, the corresponding pending code will be deleted at the end of the driving cycle.

Note. Depending on scan tool and protocol used, some of the information provided may be referred to by a different name.

Procedure

Connect the scan tool.

Start the engine and run at idle.

Note. If the engine does not start, crank the engine using starter for at least 5 seconds. Do not switch the ignition off afterward.

Select Mode 7: Check test results of components that are continuously monitored.

The number of pending DTCs or 0 malfunctions detected will be displayed on the scan tool screen.

Refer to the DTC tables for the diagnostic repair procedures.

Switch the ignition off.

DIAGNOSTIC MODE 08 - REQUEST CONTROL OF ON-BOARD SYSTEM, TEST OR COMPONENT

Diagnostic Mode 08 is used to control the operation of an on-board system, test or component. A Mode 8 service can be used to turn on-board system ON or OFF, or to cycle an on-board system, test or component on or off for a specific period of time. The service can also be used to request system status or to report test results.

No DTCs stored in the DTC memory.
Intake Air Temperature (IAT) maximum 60 °C.
Coolant temperature 80 -110 °C.
Throttle valve angle 12.0 - 16.0%.

Function Test

Note. If the accelerator pedal is depressed during the test, the test will be aborted.

Connect the scan tool.

Start the engine and run at idle for at least 15 minutes.

Select "Mode 8: Tank Leak Test".

Select "Test-ID 01: Tank Leak Test".

Check the specified value of the tank leak test at idle.

The following will be displayed on the scan tool screen

Tank leak test				Specified value
Test function active Test function is being initiated, please wait Test off Test aborted				Test OK

Switch the ignition off.

If the specified result is obtained

System OK.

If the specified result is not obtained

Repeat the tank leak test, switch the ignition off and start the engine again and let run for 15 minutes at idle.

Switch the ignition off.

If the specified result is again not obtained

A leak may be present. Refer to EVAPORATIVE SYSTEM, CHECKING FOR LEAKS .

DIAGNOSTIC MODE 09 - READ VEHICLE INFORMATION

Diagnostic Mode 09 makes it possible to access vehicle-specific information from the ECM and the TCM (where applicable).

Note. Depending on scan tool and protocol used, Diagnostic Mode 09 and the information provided may be referred to by a different name.

Test requirement

No DTCs stored in the DTC memory.

Procedure

Connect the scan tool.

Switch the ignition on.

Select Mode 09: Vehicle information.

Select the desired Test-ID.

The information requested will be displayed on the scan tool screen.

The following table is a numerical list of all Test-IDs that may be selected.

Test-ID	Diagnostic text
02	Vehicle identification number e.g.
	A different 17 digit number will be displayed for each vehicle
04	Calibration identification e.g.
	Engine Control Module (ECM)
	Transmission Control Module (TCM)
06	CVN (check sum) e.g.
	EC5AE460 the check sum is different for every control module version
	000D105

Switch the ignition off.

DTC TABLES

Fuel, air mixture, and additional emissions regulations

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P000A	Intake (A) Camshaft Position Slow Response Bank 1	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal change < \|5\| [°CA] number of checks 10 times	Camshaft valve commanded on	1 Sec	Continuous 2 DCY
P000B	Intake (A) Camshaft Position Slow Response Bank 1	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal change < \|5\| [°CA] number of checks 10 times	Engine speed > 700 RPM setpoint change behaviour check < 3 [°CA] for 1.2 Sec setpoint change > 7 [°CA]	2 Sec	Continuous 2 DCY
P000C	Intake (A) Camshaft Position Slow Response Bank 2	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal change < \|5\| [°CA] number of checks 10 times	Camshaft valve commanded on	1 Sec	Continuous 2 DCY
P000D	Intake (A) Camshaft Position Slow Response Bank 2	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal change < \|5\| [°CA] number of checks 10 times	Engine speed > 700 RPM setpoint change behaviour check < 3 [°CA] for 1.2 Sec setpoint change > 7 [°CA]	1 Sec	Continuous 2 DCY
P0010	Intake (A) Camshaft Position Actuator Circuit / Open (Bank 1)	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal current < 0.8 mA	Camshaft valve commanded on	2 Sec	Continuous 2 DCY
P0011	Intake (A) Camshaft Position Timing - Over-Advanced (Bank 1)	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Functional check adjustment angle difference > 10\|[°CA] number of checks 3 times	Engine speed > 700 RPM modeled oil temp. 15...130° C delta set point < 3[° CA] than wait 3...6 Sec	3 Sec	Continuous 2 DCY
P0013	Camshaft Position Actuator Circuit / Open (Bank 1)	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal current < 0.8 mA	Camshaft valve commanded on	2 Sec	Continuous 2 DCY
P0014	Intake (A) Camshaft Position Actuator Circuit / Open (Bank 1) Functional check	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Adjustment angle difference > 10\|[°CA] number of checks 3 times	Engine speed > 700 RPM modeled oil temp. 15...130° C delta set point < 3[° CA] than wait 3...6 Sec	3 Sec	Continuous 2 DCY
P0016	Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A Intake	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Camshaft/crankshaft adaptive value > > 139°[CA]	Engine speed > 700 RPM	0.5 Sec	Continuous 2 DCY
P0017	Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A Exhaust	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Camshaft/crankshaft adaptive value > > 139°[CA]	Engine speed > 700 RPM	0.5 Sec	Continuous 2 DCY
P0018	Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A Intake	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Misalignment adaptive value > < 75[°CA]	Engine speed > 700 RPM	0.5 Sec	Continuous 2 DCY
P0019	Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A Exhaust	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Misalignment adaptive value > < 75[°CA]	Engine speed > 700 RPM	0.5 Sec	Continuous 2 DCY
P0020	Intake (A) Camshaft Position Actuator Circuit / Open (Bank 2)	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal current < 0.8 mA	Camshaft valve commanded on	2 Sec	Continuous 2 DCY
P0021	Intake (A) Camshaft Position Timing - Over-Advanced (Bank 2)	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Functional check adjustment angle difference > 10\|[°CA] number of checks 3 times	Engine speed > 700 RPM modeled oil temp. 15...130° C delta set point < 3[° CA] than wait 3...6 Sec	3 Sec	Continuous 2 DCY
P0023	Camshaft Position Actuator Circuit / Open (Bank 2)	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal current < 0.8 mA	Camshaft valve commanded on	2 Sec	Continuous 2 DCY Continuous 2 DCY
P0024	Intake (A) Camshaft Position Actuator Circuit / Open (Bank 2) Functional check	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Adjustment angle difference > 10\|[°CA] number of checks 3 times	Engine speed > 700 RPM modeled oil temp. 15...130° C delta set point < 3[° CA] than wait 3...6 Sec	3 Sec	Continuous 2 DCY
P025A	Fuel Pump Open circuit	Check the fuel pump. Refer to FUEL PUMP ELECTRICAL, TESTING .	Signal current < 0.8 mA	Fuel pump commanded off	2 Sec	Continuous 2 DCY
P025C	Fuel Pump Short to ground	Check the fuel pump. Refer to FUEL PUMP ELECTRICAL, TESTING .	Signal voltage < 2.0 V	Fuel pump commanded off	4.5 Sec	Continuous 2 DCY
P025D	Fuel Pump Short to B+	Check the fuel pump. Refer to FUEL PUMP ELECTRICAL, TESTING .	Signal current > 10 A	Fuel pump commanded on	2 Sec	Continuous 2 DCY
P0030	HO2S Heater Control Circuit (Bank 1, Sensor 1) Open circuit	Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR O2S HEATER, CHECKING .	Heater current < 8...40 mA	Duty cycle 0.4...99.6% heater commanded on	5.2 Sec	Continuous 2 DCY
P0031	HO2S Heater Control Circuit Low (Bank 1, Sensor 1) Short to ground	Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR O2S HEATER, CHECKING .	Heater voltage < 1.9...2.22 V	Duty cycle < 99.6% heater commanded off	5.2 Sec	Continuous 2 DCY
P0032	HO2S Heater Control Circuit High (Bank 1, Sensor 1) Short to B+	Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR O2S HEATER, CHECKING .	Heater current > 8...11 A	Duty cycle > 0.4% heater commanded on	5.2 Sec	Continuous 2 DCY
P0036	HO2S Heater Control Circuit (Bank 1, Sensor 2) open circuit	Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING .	Heater current < 8...40 mA	Heater commanded on duty cycle 0.4...99.6%	5.2 Sec	Continuous 2 DCY
P0037	HO2S Heater Control Circuit Low (Bank 1, Sensor 2) short to ground	Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING .	Heater voltage < 1.9...2.22 V	Heater commanded off duty cycle < 99.6%	5.2 Sec	Continuous 2 DCY
P0038	HO2S Heater Control Circuit High (Bank 1, Sensor 2) Short to B+	Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING .	Heater current Bank 1 > 8...11 A	Duty cycle > 0.4 % heater commanded on	5.2 Sec	Continuous 2 DCY
P0042	HO2S Heater Circuit (Bank 1, Sensor 3) open circuit SULEV	Check the Oxygen Sensor (O2S) Heater - Center Three Way Catalytic Converter (TWC) -Z64-.	Heater voltage 4.50...5.50 V	Engine speed, >80 RPM heater commanded off	0.50 Sec	Continuous 2 DCY
P0043	HO2S Heater Control Circuit Low (Bank 1, Sensor 2) short to ground	Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING .	SULEV Heater voltage < 3 V ULEV Heater voltage < 3 V	SULEV Time after engine start, >5 Sec heater commanded off ULEV engine speed >80 RPM heater, commanded off	0.50 Sec	Continuous 2 DCY
P0044	HO2S Heater Control Circuit High (Bank 1, Sensor 2) Short to B+	Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING .	Heater current, > 2.70...5.50 A	Engine speed, >80 RPM heater commanded on	0.50 Sec	Continuous 2 DCY
P0050	HO2S Heater Control Circuit (Bank 1, Sensor 1) Open circuit	Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR O2S HEATER, CHECKING .	Heater current < 8...40 mA		5.2 Sec	Continuous 2 DCY
P050A	Idle Air Control System RPM Lower Or Higher Than Expected	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Out of range-low engine speed deviation <80 RPM Out of range-high engine speed deviation >80 RPM	Time after engine start >0.0 Sec driver torque demand none vehicle speed 0 km/h altitude <2700 m IAT >-48 °C evap purge valve closed catalyst heating active FOR MANUAL TRANSMISSIONS: engine load <40...75% catalyst heating active time after engine start >0.0 Sec driver torque demand none vehicle speed 0 km/h altitude <2700 m IAT >-48 °C catalyst heating active	4 Sec	Multiple 2 DCY
P0051	HO2S Heater Control Circuit Low (Bank 1, Sensor 1) Short to ground	Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR O2S HEATER, CHECKING .	Heater voltage < 1.9...2.22 V	Duty cycle < 99.6% heater commanded off	5.2 Sec	Continuous 2 DCY
P0052	HO2S Heater Control Circuit High (Bank 1, Sensor 1) Short to B+	Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR O2S HEATER, CHECKING .	Heater current > 8...11 A	Duty cycle > 0.4 % heater commanded on	5.2 Sec	Continuous 2 DCY
P0056	HO2S Heater Control Circuit (Bank 1, Sensor 2) open circuit	Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING .	Heater current < 8...40 mA	Duty cycle 0.4...99.6% heater commanded on	5.2 Sec	Continuous 2 DCY
P0057	HO2S Heater Control Circuit Low (Bank 1, Sensor 2) short to ground	Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING .	Heater voltage < 1.9...2.22 V	Heater commanded off duty cycle < 99.6%	5.2 Sec	Continuous 2 DCY
P0058	HO2S Heater Control Circuit High (Bank 1, Sensor 2) Short to B+	Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING .	Heater current Bank 2 > 8...11 A	Duty cycle > 0.4 % heater commanded on	5.2 Sec	Continuous 2 DCY
P0068	MAP/ Throttle Position Correlation	Check the Manifold Absolute Pressure (MAP) Sensor -G71-. Refer to MANIFOLD ABSOLUTE PRESSURE SENSOR AND INTAKE AIR TEMPERATURE SENSOR, CHECKING .	Deviation throttle controller < -43 or > 43% < -33 or > 33% deviation pressure controller < -39...21% or > 21...39% < -40...-28% or > 28...40%	Pressure quotient < 0.70 l engine speed 600...3000 RPM time after engine start > 70 Sec fuel cut off not active throttle position > 4.5% fuel trim activity -23...23% no valve lift shift 5 Sec pressure quotient < 0.8 l engine speed 600...3000 RPM time after engine start > 70 Sec fuel cut off not active throttle position > 4.5% fuel trim activity -23...23% no valve lift shift 5 Sec	3 Sec	Continuous 2 DCY
P0070	Ambient air temp sensor short to B+	Check the Outside Air Temperature Sensor -G17-.	Ambient air temp <45.0 °C	CAN active	2 Sec	Multiple 2 DCY
P0071	Rationality check	Check the Outside Air Temperature Sensor -G17-.	Difference value AAT-ECT @ engine start (depending on engine-off time) > 25...40K AND difference value AAT-IAT engine start (depending on engine-off time) > 25....40K	Engine off time >6 h ECT @engine start minus IAT @ engine start<=40...25 °C ECT @ engine start <.75 °C minus ECT @ time after 60 Sec AAT @ engine start <=5.2 °C minus AAT @ condition vehicle speed >25 MPH for time >10 Sec intake air temp <=5.2 °C @ engine start minus intake air temp @ condition vehicle speed >25 MPH for time >10 Sec	0 Sec	Once/DCY 2 DCY
P0072	Ambient air temp sensor short to ground	Check the Outside Air Temperature Sensor -G17-.	Ambient air temp >87.0 °C	CAN active	2 Sec	Multiple 2 DCY
P0087	Fuel Rail/System Pressure - Too Low	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Deviation fuel rail pressure > 0.120 g/Rev AND deviation lambda controller -15...15% actual pressure below target pressure target pressure-actual pressure > 2 MPa AND deviation lambda control -15...15%	Fuel cut off not active engine speed 640...3480 RPM time after engine start > 8 Sec high pressure pump setpoint 0.015....0.12 g/Rev lambda control closed loop fuel cut off not active engine speed 640...3480 RPM time after engine start > 8 Sec high pressure pump setpoint 0.015....0.12 g/Rev lambda control closed loop EVAP canister load < 25% control valve commanded closed fuel cut off not active engine speed 640...3480 RPM time after engine start > 8 Sec high pressure pump setpoint 0.030....0.12 g/Rev lambda control closed loop EVAP canister load < 25%	5 Sec 20 Sec 20 Sec
P0088	Fuel Rail/System Pressure - Too High	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Fuel rail pressure > 13.9 MPa		3 Sec	2 DCY
P0089	Fuel Pressure Regulator 1 Performance	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Actual pressure Deviation deviation fuel pressure control < 28% > 35% target pressure - actual pressure > 0.17 MPa target pressure - actual pressure > 0.17 MPa	ECT, 70...95° C Time after engine start > 30 Sec engine speed 500...3000 RPM delta fuel pressure low 25 kPa fuel cut off not active ECT, 70...95° C Time after engine start > 80 Sec engine speed 500...4500 RPM ECT, 70...95° C Time after engine start > 80 Sec engine speed 500...4500 RPM high pressure pump setpoint > 0.01 g	5 Sec 60 Sec 60 Sec	Continuous 2 DCY
P0106	Manifold Absolute Pressure/BARO Sensor Range/Performance Rationality check	Check the Charge Air Pressure Sensor -G31-. Refer to.-- If the Charge Air Pressure Sensor -G31- has no faults, check the altitude sensor co-located within the ECM.-- Check TSB's for related information.	Boost pressure signal altitude pressure sensor vs IM pressure > 7 k/Pa	Engine speed, 0 RPM time after engine start 0 Sec	3 Sec	Continuous 2 DCY
P0107	Manifold Absolute Pressure/BARO Sensor Range/Performance Short to ground-open circuit	Check the Charge Air Pressure Sensor -G31-. Refer to.-- If the Charge Air Pressure Sensor -G31- has no faults, check the altitude sensor co-located within the ECM.-- Check TSB's for related information.	Signal voltage < 0.2 V		2 Sec	Continuous 2 DCY
P0108	Manifold Absolute Pressure/BARO Sensor Range/Performance Short to B+	Check the Charge Air Pressure Sensor -G31-. Refer to.-- If the Charge Air Pressure Sensor -G31- has no faults, check the altitude sensor co-located within the ECM.-- Check TSB's for related information.	Signal voltage > 4.8 V		2 Sec	Continuous 2 DCY
P0111	Intake Air Temperature Sensor 1 Rationality check	Check the Intake Air Temperature (IAT) Sensor -G42- Refer to MANIFOLD ABSOLUTE PRESSURE SENSOR AND INTAKE AIR TEMPERATURE SENSOR, CHECKING	Difference value: IAT-ECT @ engine start (depending on engine-off time, >25...40 K AND difference value: IAT-AAT @ engine start (depending on engine-off time), >25...40 K	Engine-off time, >6 h ECT @ engine start minusAAT @ engine start, <=25...40 °C ECT @ engine start, <1.5 °C minus ECT @ time after engine start, 60 Sec AAT @ engine start, <=5.2 °C minus AAT @ condition vehicle speed, >25 MPH for time >30 Sec	0 Sec	Once/DCY 2 DCY
P0112	Intake Air Temperature Sensor 1 Circuit Low Input Short to ground	Check the Intake Air Temperature (IAT) Sensor -G42- Refer to MANIFOLD ABSOLUTE PRESSURE SENSOR AND INTAKE AIR TEMPERATURE SENSOR, CHECKING	IAT, > 3.2 V		2 Sec	Continuous 2 DCY
P0113	Intake Air Temperature Sensor 1 Circuit High Input Open circuit or short to B+	Check the Intake Air Temperature (IAT) Sensor -G42- Refer to MANIFOLD ABSOLUTE PRESSURE SENSOR AND INTAKE AIR TEMPERATURE SENSOR, CHECKING	IAT, < 0.1 V		2 Sec	Continuous 2 DCY
P0116	Engine Coolant Temperature Sensor 1 Circuit Range/Performance.	Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR, CHECKING .-- Check the coolant regulator. Refer to Engine Mechanical, Fuel Injection and Ignition.	Stuck high: no change of signal, <1.5K	ECT @ start, 109.6...140.30 °C subsitute ECT, >-48.00 °C Driving condition L: vehicle speed, 0.0...10.00km/h mass air flow, 4.0...180.0 kg/h time required/frequency, 3 times Driving condition H: vehicle speed, 40.0...120 ikm/h mass air flow, 12...36...152 kg/h time required, >40 Sec frequency, once	115 Sec	Once/DCY 2 DCY
P0116	Engine Coolant Temperature Sensor 1 Circuit Range/Performance.	Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR, CHECKING .-- Check the coolant regulator. Refer to Engine Mechanical, Fuel Injection and Ignition.	Stuck low: no change of signal, <1.5K	ECT @ start, 50.30...88.4 °C subsitute ECT, >-48.00 °C Driving condition L: vehicle speed, 0.0...10.00km/h mass air flow, 4.0...180.0 kg/h time required >25 Sec frequency, 3 times Driving condition H: vehicle speed, 40.0...120 ikm/h mass air flow, 12...36...152 kg/h time required, >40 Sec frequency, once	115 Sec	Once/DCY 2 DCY
P0116	Engine Coolant Temperature Sensor 1 Circuit Range/Performance.	Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR, CHECKING .-- Check the coolant regulator. Refer to Engine Mechanical, Fuel Injection and Ignition.	Stuck in range 88.5...109.5 °C AND no change on signal, 1.5 K	Engine-off time, >9900...15600 Sec ECT @ start, 88.5...109.5 °C subsitute ECT, >-48.00 °C Driving condition L: vehicle speed, 0.0...10.00km/h mass air flow, 4.0...180.0 kg/h time required >25 Sec frequency, 3 times Driving condition H: vehicle speed, 40.0...120 ikm/h mass air flow, 12...36...152 kg/h time required, >40 Sec frequency, once	115 Sec	Once/DCY 2 DCY
P0116	Engine Coolant Temperature Sensor 1 Circuit Range/Performance. Stuck	Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR, CHECKING .-- Check the coolant regulator. Refer to Engine Mechanical, Fuel Injection and Ignition.	Delta ECT < 2.5 K	Driving condition 1 ECT @ engine start 75...141° C vehicle speed, >12.5 MPH engine speed > 2500 RPM mass air flow > 60 kg/h and Driving condition 2 fuel cut-off active vehicle speed, > 65 MPH engine speed idle AND IF no pass cond. 1 & 2 ignition off > 400 Sec ECT @ start 80...110° C ECT @ start 40...75° C delta modeled ECT 19 K	155 Sec 400 Sec 30 Sec	Once/DCY 2 DCY
P0117	Engine Coolant Temperature Sensor 1 Circuit Low Input Short to ground	Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR, CHECKING .-- Check the coolant regulator. Refer to Engine Mechanical, Fuel Injection and Ignition.	ECT, >141° C			Continuous 2 DCY
P0118	Engine Coolant Temperature Sensor 1 Circuit Short to B+	Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR, CHECKING .-- Check the coolant regulator. Refer to Coolant Pump .	ECT, < 45.75° C		2 Sec	Continuous 2 DCY
P0121	Throttle/Pedal Position Sensor A Circuit Range/Performance	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	TPS 1-TPS 2, > 5.79° AND relative mass air integral > 100 @ 0.45 Sec	Engine start completed TPS no fault	0.2 Sec	Continuous 2 DCY
P0122	Throttle/Pedal Position Sensor A Circuit Low Input	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	Signal voltage, <0.117 V		0.2 Sec	Continuous 2 DCY
P0123	Throttle/Pedal Position Sensor A Circuit High Input	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	Signal voltage, > 4.6 V		0.2 Sec	Continuous 2 DCY
P0130	O2 Sensor Circuit (Bank 1, Sensor 1)	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	O2S ceramic temp. <640.0 °C	Modeled exhaust temp>300 °C fuel cut-off not active active	12 Sec	Multiple 2 DCY
P0131	O2 Sensor Circuit, Bank 1 - Sensor 1 Low Voltage	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Signal voltage < 0.13 V		3 Sec	Continuous 2 DCY
P0132	O2 Sensor Circuit, Bank 1 - Sensor 1 High Voltage	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Signal voltage > 5.5 V		3 Sec	Continuous 2 DCY
P0133	O2 Circuit Slow Response (Bank 1, Sensor 1)	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Lambda value vs modeled lambda value > 0.7998	Modeled exhaust gas temp, 500...950° C ECT > 60° C Engine speed, 700...3000 RPM engine speed deviation 518 RPM mass air flow 0.426...1.2 g/Rev delta mass air flow < 0.2664 g/Rev EVAP canister load < 40%	65 Sec	Once 2 DCY
P0135	O2 Heater Circuit (Bank 1, Sensor 1)	Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR O2S HEATER, CHECKING .	O2S not ready after dewpoint exceeded > 30 Sec UEGO ceramic temperature < 680 or > 860° C	O2S front dewpoint exceeded Heater control, Active O2S front no other faults O2S front dewpoint exceeded Heater control, Active lambda control active O2S front no other faults	15 Sec 40 Sec	Once 2 DCY continuous 2 DCY
P0136	O2 Circuit (Bank 1, Sensor 2)	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	O2S signal rear not oscillating at reference 0.708 V	O2S rear ready trim control post cat closed loop > 250 Sec	90 Sec	Once 2 DCY
P0137	O2 Circuit Low Voltage (Bank 1, Sensor 2) short to ground	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Signal voltage < 20 mV AND internal resistance < 10ohms	O2S dewpoint exceeded O2S rear fully heated up mass air flow > 12 kg/h	5 Sec	Continuous 2 DCY
P0138	O2 Circuit High Voltage (Bank 1, Sensor 2) short to B+	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Signal voltage >1.2 V		5 Sec	Continuous 2 DCY
P0139	O2 Circuit Slow Response (Bank 1, Sensor 2)	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Average tome of four checks > 1 for signal voltage change 0.5...0.28 V	Mass air flow 18...120 kg/h @ fuel cutoff enabled O2S rear modeled exhaust gas temp > 450° C ECT > 60° C	4 Sec	Once 2 DCY
P0140	O2 Circuit No Activity Detected (Bank 1, Sensor 2)	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Signal voltage, 0.376...0.474 V O2S rear internal resistance > 7 Kohms	Modeled exhaust temp > 555°C	5 Sec	Continuous 2 DCY
P0141	O2 Heater Circuit (Bank 1, Sensor 2) out of range	Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING .	Heater internal resistance, > 4.6Kohms	Modeled exhaust gas temp, 300-400 °C heater duty cycle 0.8...99.2%	60 Sec	Once 2 DCY
P0142	O2 circuit Bank 1 Sensor 3 heater check	Check the Oxygen Sensor 02S) 3 (behind Three Way Catalytic Converter (TWC)) Heater -Z64-.	Delta voltage one step at heater switching, >2.0 V number of checks, 10	Modeled exhaust gas temp. 200-800 °C dewpoint exceeded and lower exhaust gas temp.limit exceeded for 60 Sec	10 Sec	2 DCY
P0143	O2 circuit Bank 1 Sensor 3 Short to ground	Check the Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 -G287-.	Cold condition, Signal voltage, < 59.6 mV Warm condition, signal voltage <59.6 mV short to B+, voltage >1.26 V	ECT at engine off, >60 °C ECT <39.8 °C Modeled exhaust gas temp. 200-800 °C dewpoint, exceeded and lower exhaust gas temp limit exceded for, 60 Sec 1st lambda control loop, not at max. value modeled exhaust gas temp. dew point exceeded and lower exhaust gas temp. limit exceded for 60 Sec	5.1 Sec 40 Sec	Once/DCY 2 DCY multiple 2 DCY
P0144	O2 circuit Bank 1 Sensor 3 Short to Batt. +	Check the Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 -G287-.	Signal voltage >1.26 V	Modeled exhaust gas temp. 200-800 °C dewpoint exceeded and lower exhaust gas temp.limit exceeded for 60 Sec	5.1 Sec	Multiple 2 DCY
P0145	O2 Circuit Slow Response (Bank 1, Sensor 2)	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	EWMA filtered transient time at fuel cut-off, >0.4 Sec in voltage range, 401.4...201.2 mV number of checks (initial phase), >3 number of checks (step function), >3	Rich voltage, >=547.9 mV lean voltage <=152.3 mV OR Max O2 mass flow (disable), >=6000 mg O2S rear, ready fuel cut-off, active front O2 sensor, lambda signal, >2.00 modeled exhaust gas temp. >400 °C exhaust gas mass flow, >25.0 kg/h rear O2 sensor internal resistance, <=131 Kohms or resistance measurement, ready front O2 sensor, sensor cross change, no fault rear O2 sensor heater, wires and oscillating check, no fault purge valve, no fault trigger for step change, delta transient time, READ ERROR	4.5 Sec	2 DCY
P0146	O2 circuit Bank 1 Sensor 3 Open circuit	Check the Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 -G287-.	Signal voltage, 401.4...499 mV internal resistance, 40 Kohms	Modeled exhaust gas temp. 200-800 °C dewpoint exceeded and lower exhaust gas temp.limit exceeded for 60 Sec Modeled exhaust temp. >600 °C dewpoint exceeded and lower exhaust gas temp.limit exceeded for 60 Sec O2S rear, ready	200 Sec	Multiple 2 DCY
P0147	O2 circuit Bank 1 Sensor 3 heater check SULEV	Check the Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 -G287 -.	Heater resistance 1056...11656 ohms	Modeled exhaust gas temp, 250-650.1 °C Engine shutoff time, >300 Sec. fuel cut-off not active heater commanded on	15 Sec	Multiple 2 DCY
P0150	O2 Circuit No Activity Detected (Bank 1, Sensor 2)	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Signal voltage, 0.376...0.474 V O2S rear internal resistance > 7 Kohms	Modeled exhaust temp > 555°C	5 Sec	Continuous 2 DCY
P0151	O2 Sensor Circuit, Bank 1 - Sensor 1 Low Voltage	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Signal voltage < 0.13 V		3 Sec	Continuous 2 DCY
P0152	O2 Sensor Circuit, Bank 1 - Sensor 1 High Voltage	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Signal voltage > 5.5 V		3 Sec	Continuous 2 DCY
P0153	O2 Circuit Slow Response (Bank 1, Sensor 1)	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Lambda value vs modeled lambda value > 0.7998	Modeled exhaust gas temp, 500...950° C ECT > 60° C Engine speed, 700...3000 RPM engine speed deviation 518 RPM mass air flow 0.426...1.2 g/Rev delta mass air flow < 0.2664 g/Rev EVAP canister load < 40%	65 Sec	Once 2 DCY
P0155	O2 Heater Circuit (Bank 1, Sensor 1)	Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR O2S HEATER, CHECKING .	O2S not ready after dewpoint exceeded > 30 Sec UEGO ceramic temperature < 680 or > 860° C	O2S front dewpoint exceeded Heater control, Active O2S front no other faults O2S front dewpoint exceeded Heater control, Active lambda control active O2S front no other faults	15 Sec 40 Sec	Once 2 DCY continuous 2 DCY
P0156	O2 Circuit (Bank 1, Sensor 2)	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	O2S signal rear not oscillating at reference 0.708 V	O2S rear ready trim control post cat closed loop > 250 Sec	90 Sec	Once 2 DCY
P0159	O2 Circuit Low Voltage (Bank 1, Sensor 2) short to ground	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Signal voltage < 20 mV AND internal resistance < 10ohms	O2S dewpoint exceeded O2S rear fully heated up mass air flow > 12 kg/h	5 Sec	Continuous 2 DCY
P0158	O2 Circuit High Voltage (Bank 1, Sensor 2) short to B+	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Signal voltage >1.2 V		5 Sec	Continuous 2 DCY
P0159	O2 Circuit Slow Response (Bank 1, Sensor 2)	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Average tome of four checks > 1 for signal voltage change 0.5...0.28 V	Mass air flow 18...120 kg/h @ fuel cutoff enabled O2S rear modeled exhaust gas temp > 450° C ECT > 60° C	4 Sec	Once 2 DCY
P0161	O2 Heater Circuit (Bank 1, Sensor 2) out of range	Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING .	Heater internal resistance, > 4.6Kohms	Modeled exhaust gas temp, 300-400 °C heater duty cycle 0.8...99.2%	60 Sec	Once 2 DCY
P0171	System Too Lean (Bank 2) Additive	Check the fuel pressure --. Refer to FUEL PRESSURE TEST .-- Check the Fuel Pressure Sensor -G247-. -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks	Adaptive value >25%	Engine speed, < 864 RPM evap purge valve, closed lambda control, closed loop ECT, > 70° C integrated mass air flow, > 25g ECT, >63.0 °C accelerator PP value < 250% delta mass air flow < 7.5 g/ Rev mass air flow 0.0375 g/Rev substitute ECT > 70° C	35 Sec	Continuous 2 DCY
P0171	System Too Lean (Bank 2) Multiplitive	Check the fuel pressure --. Refer to FUEL PRESSURE TEST .-- Check the Fuel Pressure Sensor -G247-. -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks	Adaptive value > 0.0063 g/Rev	Lambda control, closed loop evap purge valve, closed ECT, > 70.0° C substitute ECT > 70° C mass air flow 34...400 kg/h Engine speed, 992...4000 RPM delta mass air flow < 7.5 g/ Rev accelerator PP value < 250% integrated mass air flow, > 25g	35 Sec	Continuous 2 DCY
P0172	System Too Rich (Bank 1) Additive	Check the fuel pressure --. Refer to FUEL PRESSURE TEST .-- Check the Fuel Pressure Sensor -G247-. -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks	Adaptive value < 25%	Engine speed, < 864 RPM evap purge valve, closed lambda control, closed loop ECT, > 70° C integrated mass air flow, > 25g ECT, >63.0 °C accelerator PP value < 250% delta mass air flow < 7.5 g/ Rev mass air flow 0.0375 g/Rev substitute ECT > 70° C	35 Sec	Continuous 2 DCY
P0172	System Too Rich (Bank 1) Multiplitive	Check the fuel pressure --. Refer to FUEL PRESSURE TEST .-- Check the Fuel Pressure Sensor -G247-. -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks	Adaptive value < 0.0075 g/Rev	Lambda control, closed loop evap purge valve, closed ECT, > 70.0° C substitute ECT > 70° C mass air flow 34...400 kg/h Engine speed, 992...4000 RPM delta mass air flow < 7.5 g/ Rev accelerator PP value < 250% integrated mass air flow, > 25g	35 Sec	Continuous 2 DCY
P0174	System Too Lean (Bank 2) Additive	Check the fuel pressure --. Refer to FUEL PRESSURE TEST .-- Check the Fuel Pressure Sensor -G247-. -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks	Adaptive value >25%	Engine speed, < 864 RPM evap purge valve, closed lambda control, closed loop ECT, > 70° C integrated mass air flow, > 25g ECT, >63.0 °C accelerator PP value < 250% delta mass air flow < 7.5 g/ Rev mass air flow 0.0375 g/Rev substitute ECT > 70° C	35 Sec	Continuous 2 DCY
P0174	System Too Lean (Bank 2) Multiplitive	Check the fuel pressure --. Refer to FUEL PRESSURE TEST .-- Check the Fuel Pressure Sensor -G247-. -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks	Adaptive value > 0.0063 g/Rev	Lambda control, closed loop evap purge valve, closed ECT, > 70.0° C substitute ECT > 70° C mass air flow 34...400 kg/h Engine speed, 992...4000 RPM delta mass air flow < 7.5 g/ Rev accelerator PP value < 250% integrated mass air flow, > 25g	35 Sec	Continuous 2 DCY
P0175	System Too Lean (Bank 1) Additive	Check the fuel pressure --. Refer to FUEL PRESSURE TEST .-- Check the Fuel Pressure Sensor -G247-. -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks	Adaptive value < 25%	Engine speed, < 864 RPM evap purge valve, closed lambda control, closed loop ECT, > 70° C integrated mass air flow, > 25g ECT, >63.0 °C accelerator PP value < 250% delta mass air flow < 7.5 g/ Rev mass air flow 0.0375 g/Rev substitute ECT > 70° C	35 Sec	Continuous 2 DCY
P0175	System Too Rich (Bank 1) Multiplitive	Check the fuel pressure --. Refer to FUEL PRESSURE TEST .-- Check the Fuel Pressure Sensor -G247-. -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks	Adaptive value < 0.0075 g/Rev	Lambda control, closed loop evap purge valve, closed ECT, > 70.0° C substitute ECT > 70° C mass air flow 34...400 kg/h Engine speed, 992...4000 RPM delta mass air flow < 7.5 g/ Rev accelerator PP value < 250% integrated mass air flow, > 25g	35 Sec	Continuous 2 DCY
P0190	Fuel Rail Pressure Sensor A Circuit	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Open circuit or short to B+ Signal voltage > 4.6 V		2 Sec	Continuous 2 DCY
P0191	Fuel Rail Control Valve, high pressure side	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Actual pressure > 13.8 MPa	Time after engine start, > 60 Sec engine speed, 640...6000 RPM	5 Sec	Continuous 2 DCY
P0192	Fuel Rail Pressure Sensor A Circuit Low Input	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Signal voltage < 0.2 V		2 Sec	Continuous 2 DCY
P0201	Injector Circuit / Open - Cylinder 1	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal voltage > 3.5 V Low side signal current <10 A	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0202	Injector Circuit / Open - Cylinder 2	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal voltage > 3.5 V Low side signal current <10 A	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0203	Injector Circuit / Open - Cylinder 3	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal voltage > 3.5 V Low side signal current <10 A	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0204	Injector Circuit / Open - Cylinder 4	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 2, CHECKING .	Signal voltage > 3.5 V Low side signal current <10 A	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0205	Injector Circuit / Open - Cylinder 5	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 2, CHECKING .	Signal voltage > 3.5 V Low side signal current <10 A	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0206	Injector Circuit / Open - Cylinder 6	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 2, CHECKING .	Signal voltage > 3.5 V Low side signal current <10 A	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0221	Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	TPS 1-TPS 2, > 5.79° AND relative mass air integral > 100 @ 0.45 Sec	Engine start completed TPS no fault	0.2 Sec	Continuous 2 DCY
P0222	Throttle/Pedal Position Sensor/Switch B Circuit Low Input	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	Signal voltage, <0.117 V		0.2 Sec	Continuous 2 DCY
P0223	Throttle/Pedal Position Sensor/Switch B Circuit High Input	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	Signal voltage, > 4.6 V		0.2 Sec	Continuous 2 DCY
P0234	Turbocharger/Supercharger Overboost Condition Rationality check high	Check the Charge Air Pressure Sensor -G31-. -- Check the charge air system for proper seal.	Diff. set value boost pressure vs actual boost pressure value, >200...1275 hPa	Altitude, <2700 m	1.2 Sec	Multiple 2 DCY
P0236	Turbocharger/Supercharger Boost Sensor A Plausibility check ULEV	Check the Charge Air Pressure Sensor -G31-. -- Check the charge air system for proper seal.	Diff. boost pressure signal vs altitude sensor signal, >230 hPa diff. boost pressure signal vs altitude sensor signal, <130 hPa	Engine s peed, <1000 RPM throttle position, <11.50% engine s peed, <1000 RPM throttle position, <11.50%	2 Sec	Continuous 2 DCY
P0237	Turbocharger/Supercharger Boost Sensor A Circuit Low	Check the Charge Air Pressure Sensor -G31-.-- Check the charge air system for proper seal. Refer to appropriate service information.	Signal voltage, < 0.20 V		0.5 Sec	Continuous 2 DCY
P0238	Turbocharger/Supercharger Boost Sensor A Circuit High	Check the Charge Air Pressure Sensor -G31-. -- Check the charge air system for proper seal. Refer to appropriate service information.	Signal voltage, > 4.88 V		0.5 Sec	Continuous 2 DCY
P0243	Turbocharger/Supercharger Wastegate Solenoid A	Check the Wastegate Bypass Regulator Valve -N75-.	Signal voltage, > 4.40...5.60 V	Boost pressure control valve, commanded off Engine speed, > 80 RPM	0.5 Sec	Continuous 2 DCY
P0245	Turbocharger/Supercharger Wastegate Solenoid A Low	Check the Wastegate Bypass Regulator Valve -N75-.	Signal voltage, < 2.15...3.25 V	Boost pressure control valve, commanded off Engine speed, > 80 RPM	0.5 Sec	Continuous 2 DCY
P0246	Turbocharger/Supercharger Wastegate Solenoid A High	Check the Wastegate Bypass Regulator Valve -N75-.	Signal current, >2.20 A	Boost pressure control valve, commanded on Engine speed, > 80 RPM	0.5 Sec	Continuous 2 DCY
P0261	Cylinder 1 Injector Circuit Low	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current < 10 A signal voltage < 3.5 V	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0262	Cylinder 1 Injector Circuit High	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current > 16 A	Engine speed, > 80 RPM injection valve, switched on	3 Sec	Continuous 2 DCY
P0264	Cylinder 2 Injector Circuit Low	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current < 10 A signal voltage < 3.5 V	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0265	Cylinder 2 Injector Circuit High	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current > 16 A	Engine speed, > 80 RPM Injection valve, Commanded on	3 Sec	Continuous 2 DCY
P0267	Cylinder 3 Injector Circuit Low	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current < 10 A signal voltage < 3.5 V	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0268	Cylinder 3 Injector Circuit High	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current > 16 A	Engine speed, > 80 RPM Injection valve, Commanded on	3 Sec	Continuous 2 DCY
P0270	Cylinder 4 Injector Circuit Low	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 2, CHECKING .	Signal current < 10 A signal voltage < 3.5 V	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0271	Cylinder 4 Injector Circuit High	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 2, CHECKING .	Signal current > 16 A	Engine speed, > 80 RPM Injection valve, Commanded on	3 Sec	Continuous 2 DCY
P0273	Cylinder 5 Injector Circuit Low	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 2, CHECKING .	Signal current < 10 A signal voltage < 3.5 V	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0274	Cylinder Injector 5 Circuit High	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 2, CHECKING .	Signal current > 16 A		3 Sec	Continuous 2 DCY
P0276	Cylinder 6 Injector Circuit Low	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 2, CHECKING .	Signal current < 10 A signal voltage < 3.5 V	Injection valve commanded on injection valve commanded off	3 Sec	Continuous 2 DCY
P0277	Cylinder 6 Injector Circuit High	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 2, CHECKING .	Signal current > 16 A		3 Sec	Continuous 2 DCY
P0299	Turbocharger/Supercharger Underboost Rationality check low	Check the charge air system for proper seal. Refer to Engine Mechanical, Fuel Injection and Ignition	Diff. set value boost pressure vs actual boost pressure value, >150 hPa	Engine speed, 2200-2800 RPM altitude <2700 m diff. set value boost pressure vs actual boost pressure value Boost pressure control, active turbo charger bypass valve, closed	6 Sec	Multiple 2 DCY

Ignition system

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P0300	Random Misfire Detected	Check the Spark plugs.-- Check the intake system for leaks.-- Check the fuel pressure. Refer to FUEL PRESSURE TEST .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING . OR FUEL INJECTORS, BANK 2, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292, N323, N324-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Misfire rate Ist interval > 1.3%	Time after engine start idle...150 RPM Engine speed range, 150-6850 RPM Engine torque, >=0 Nm IAT, >-48 °C Fuel cutoff, Not active	1000 Rev.	2 DCY continuous
P0301	Cylinder 1 Misfire Detected	Check the Spark plugs.-- Check the intake system for leaks.-- Check the fuel pressure. Refer to FUEL PRESSURE TEST .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING . OR FUEL INJECTORS, BANK 2, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292, N323, N324-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Misfire rate Ist interval > 1.3%	Time after engine start idle...150 RPM Engine speed range, 150-6850 RPM Engine torque, >=0 Nm IAT, >-48 °C Fuel cutoff, Not active	1000 Rev.	2 DCY continuous
P0302	Cylinder 2 Misfire Detected	Check the Spark plugs.-- Check the intake system for leaks.-- Check the fuel pressure. Refer to FUEL PRESSURE TEST .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING . OR FUEL INJECTORS, BANK 2, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292, N323, N324-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Misfire rate Ist interval > 1.3%	Time after engine start idle...150 RPM Engine speed range, 150-6850 RPM Engine torque, >=0 Nm IAT, >-48 °C Fuel cutoff, Not active	1000 Rev.	2 DCY continuous
P0303	Cylinder 3 Misfire Detected	Check the Spark plugs.-- Check the intake system for leaks.-- Check the fuel pressure. Refer to FUEL PRESSURE TEST .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING . OR FUEL INJECTORS, BANK 2, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292, N323, N324-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Misfire rate 1.2%	Time after engine start idle...150 RPM Engine speed range, 150-6850 RPM Engine torque, >=0 Nm IAT, >-48 °C Fuel cutoff, Not active	1000 Rev.	2 DCY continuous
P0304	Cylinder 4 Misfire Detected	Check the Spark plugs.-- Check the intake system for leaks.-- Check the fuel pressure. Refer to FUEL PRESSURE TEST .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING . OR FUEL INJECTORS, BANK 2, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292, N323, N324-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Misfire rate 1.2%	Time after engine start idle...150 RPM Engine speed range, 150-6850 RPM Engine torque, >=0 Nm IAT, >-48 °C Fuel cutoff, Not active	1000 Rev.	2 DCY continuous
P0305	Cylinder 5 Misfire Detected	Check the Spark plugs.-- Check the intake system for leaks.-- Check the fuel pressure. Refer to FUEL PRESSURE TEST .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING . OR FUEL INJECTORS, BANK 2, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292, N323, N324-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Misfire rate 1.2%	Time after engine start idle...150 RPM Engine speed range, 150-6850 RPM Engine torque, >=0 Nm IAT, >-48 °C Fuel cutoff, Not active	1000 Rev.	2 DCY continuous
P0306	Cylinder 6 Misfire Detected	Check the Spark plugs.-- Check the intake system for leaks.-- Check the fuel pressure. Refer to FUEL PRESSURE TEST .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING . OR FUEL INJECTORS, BANK 2, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292, N323, N324-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Catalyst damage misfire rate >1.2...1.5%	Time after engine start idle...150 RPM Engine speed range, 150-6850 RPM Engine torque, >=0 Nm IAT, >-48 °C Fuel cutoff, Not active	200 Rev.	Immediately continuous
P0321	Ignition/Distributor Engine Speed Input Circuit Range/Performance	Check the Engine Speed (RPM) Sensor -G28-. Refer to ENGINE SPEED SENSOR, CHECKING .	Counted teeth versus reference, incorrect OR monitoring reference gap, failure		0.50 Sec	Continuous 2 DCY
P0322	Ignition/Distributor Engine Speed Input Circuit No Signal	Check the Engine Speed (RPM) Sensor -G28-. Refer to ENGINE SPEED SENSOR, CHECKING .	Camshaft signals >3 Engine speed, no signal		0.50 Sec	Continuous 2 DCY
P0324	Knock Control System Error	Check theKnock Sensor -G61-. Refer to KNOCK SENSOR 1, CHECKING	Signal fault counter (combustion), >24.0 OR signal fault counter (measuring window), >2.00 Communication errors SPI communication > 25	Engine speed, 0 RPM	0.5 Sec	Continuous 2 DCY
P0326	Knock Sensor 1 Circuit Signal range check	Check theKnock Sensor -G61-. Refer to KNOCK SENSOR 1, CHECKING	Lower threshold < 0.029 V upper threshold > 1.992	Engine speed > 2656 RPM mass air flow > 0.75 g/Rev	40 times	Continuous 2 DCY
P0327	Knock Sensor 1 Circuit Short to ground, out of range low	Check theKnock Sensor -G61-. Refer to KNOCK SENSOR 1, CHECKING	Lower threshold 0.18 V	Engine speed > 2656 RPM mass air flow > 0.75 g/Rev	40 times	Continuous 2 DCY
P0328	Knock Sensor 1 Circuit out of range high	Check theKnock Sensor -G61-. Refer to KNOCK SENSOR 1, CHECKING	Upper threshold 4.8 V	Engine speed > 2656 RPM mass air flow > 0.75 g/Rev	40 times	Continuous 2 DCY
P0331	Knock Sensor 1 Circuit Signal range check	Check theKnock Sensor -G61-. Refer to KNOCK SENSOR 1, CHECKING	Lower threshold < 0.029 V upper threshold > 1.992	Engine speed > 2656 RPM mass air flow > 0.75 g/Rev	40 times	Continuous 2 DCY
P0332	Knock Sensor 2 Circuit out of range low	Check theKnock Sensor (KS) 2 -G66-. Refer to KNOCK SENSOR 2, CHECKING	Lower threshold 0.18 V	Engine speed > 2656 RPM mass air flow > 0.75 g/Rev	40 times	Continuous 2 DCY
P0333	Knock Sensor 2 Circuit out of range high	Check theKnock Sensor (KS) 2 -G66-. Refer to KNOCK SENSOR 2, CHECKING	Upper threshold 4.8 V	Engine speed > 2656 RPM mass air flow > 0.75 g/Rev	40 times	Continuous 2 DCY
P0335	Engine speed sensor different sensor Signal activity check	Check the Engine Speed (RPM) Sensor -G28- Refer to ENGINE SPEED SENSOR, CHECKING	RPM signal no signal for 2 Rev RPM signal comparison with phase sensor synchrnous for 2 Rev counted vs reference teeth > 1 actual time value vs modeled time value > 1.375	Engine speed > 32 RPM engine speed > 32 RPM engine speed > 416 RPM engine speed >480 RPM	0.4 Sec 0.3 Sec 25 Sec	Continuous 2 DCY
P0336	Engine speed sensor different sensor Functionality check	Check the Engine Speed (RPM) Sensor -G28- Refer to ENGINE SPEED SENSOR, CHECKING	RPM signal no signal for 2 Rev RPM signal comparison with phase sensor synchrnous for 2 Rev counted vs reference teeth > 1 actual time value vs modeled time value > 1.375	Engine speed > 32 RPM engine speed > 32 RPM engine speed > 416 RPM engine speed >480 RPM	0.4 Sec 0.3 Sec 25 Sec	Continuous 2 DCY
P0340	Camshaft Position Sensor A Circuit (Bank 1 or single sensor)	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Signal voltage, no altering @ 4 Revs	Engine speed sensor, > 32 MPH	4 Sec	Continuous 2 DCY
P0341	Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or single sensor)	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Actual time value vs min. time value < 1.1 adaptive value vs target value > 12-4 [° CA] actual time value vs modeled time value 1...3.5	Engine speed sensor, > 32 MPH engine speed > 416 RPM duty cycle commanded off	0.1 Sec 2 Sec 3 Sec	Continuous 2 DCY Continuous 2 DCY
P0342	Camshaft Position Sensor A Circuit Low Input (Bank 1 or single sensor)	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Signal voltage low and crankshaft signals, 8.0		0.50 Sec	Continuous 2 DCY
P0343	Camshaft Position Sensor A Circuit High Input (Bank 1 or single sensor)	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Signal voltage low and crankshaft signals, 8.0		0.50 Sec	Continuous 2 DCY
P0345	Camshaft Position Sensor A Circuit (Bank 1 or single sensor)	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Signal voltage, no altering @ 4 Revs	Engine speed sensor, > 32 MPH	2 Sec	Continuous 2 DCY
P0346	Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or single sensor)	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Actual time value vs min. time value < 1.1 adaptive value vs target value > 12-4 [° CA] actual time value vs modeled time value 1...3.5	Engine speed sensor, > 32 MPH engine speed > 416 RPM duty cycle commanded off	0.1 Sec 2 Sec 3 Sec	Continuous 2 DCY Continuous 2 DCY
P0351	Ignition Coil A Primary/Secondary Circuit	Check the Ignition Coils with Power Output Stage -N70-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current, < -0.05....02 mA	Engine speed, 512 RPM	2 Sec	Continuous 2 DCY
P0352	Ignition Coil B Primary/Secondary Circuit	Check the Ignition Coils with Power Output Stage - N127-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current, < -0.05....02 mA	Engine speed, 512 RPM	2 Sec	Continuous 2 DCY
P0353	Ignition Coil C Primary/Secondary Circuit	Check the Ignition Coils with Power Output Stage - N291-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current, < -0.04..0.2 mA	Engine speed, 512 RPM	2 Sec	Continuous 2 DCY
P0354	Ignition Coil D Primary/Secondary Circuit	Check the Ignition Coils with Power Output Stage -N292-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current, < -0.04..0.2 mA	Engine speed, 512 RPM	2 Sec	Continuous 2 DCY
P0355	Ignition Coil E Primary/Secondary Circuit	Check the Ignition Coils with Power Output Stage -N323-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current, < -0.04..0.2 mA	Engine speed, 512 RPM	2 Sec	Continuous 2 DCY
P0356	Ignition Coil F Primary/Secondary Circuit	Check the Ignition Coils with Power Output Stage -N324-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current, < -0.04..0.2 mA	Engine speed, 512 RPM	2 Sec	Continuous 2 DCY
P0365	Camshaft Position Sensor A Circuit (Bank 1 or single sensor)	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Signal voltage, no altering @ 4 Revs	Engine speed sensor, > 32 MPH	2 Sec	Continuous 2 DCY
P0390	Camshaft Position Sensor A Circuit (Bank 1 or single sensor)	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Signal voltage, no altering @ 4 Revs	Engine speed sensor, > 32 MPH	2 Sec	Continuous 2 DCY
P0391	Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or single sensor)	Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING .	Actual time value vs min. time value < 1.1 adaptive value vs target value > 12-4 [° CA] actual time value vs modeled time value 1...3.5	Engine speed sensor, > 32 MPH engine speed > 416 RPM duty cycle commanded off	0.1 Sec 2 Sec 3 Sec	Continuous 2 DCY Continuous 2 DCY

Additional exhaust regulation

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P0410	System check after SAI Bank 1 Bank 2	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Difference of SAIR pressure during phase 3 to SAIR pressure before SAIR injection > 30 mBar	Mass air flow, 9.5...200kg/h Delta engine load, < 10% rev ECT > 4.5...39.8° C IAT >4.5° C altitude, < 2500 m SAI pressure sensor, ready no fault.	60 Sec	Once/DCY 2 DCY
P0412	Short to B+	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM		Air valve, commanded on igk commanded on	0.1 Sec	Continuous 2 DCY
P0413	Open circuit	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Signal voltage, < 0.8 mA	Air valve, commanded on igk commanded on	0.1 Sec	Continuous 2 DCY
P0414	Short to ground	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Signal voltage < 2 V	Air valve, commanded on igk commanded on	0.1 Sec	Continuous 2 DCY
P0415	Short to B+	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Signal current 2.20...4.20 A	Air valve, commanded on igk commanded on	0.1 Sec	Continuous 2 DCY
P0416	Open circuit	Refer to SECONDARY AIR INJECTION SYSTEM	Signal voltage, < 0.8 mA	Air valve, commanded on igk commanded on	0.1 Sec	Continuous 2 DCY
P0417	Short to ground	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Signal voltage < 2 V	Air valve, commanded on igk commanded on	0.1 Sec	Continuous 2 DCY
P0418	Air pump relay. Open circuit.	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Signal voltage > 3 A	Pump relay commanded off igk commanded on	0.1 Sec	Continuous 2 DCY
P0420	Catalyst System (front) Efficiency Below Threshold (Bank 1)	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .-- Check the Three Way Catalytic Converter (TWC). Refer to CATALYTIC CONVERTER, CHECKING .	Amplitude ratio O2S > 1.25	Modeled exhaust gas temp. 550...900° C ECT > 70° C Engine speed, 1200-2900 RPM delta engine speed < 350 RPM mass air flow 0.36...1.4 g/REV delta mass air flow < 2.25 g/REV EVAP canister load low	70 Sec	Once/DCY 2 DCY
P0430	Catalyst System (only bin 5, ULEV) Efficiency Below Threshold (Bank 1)	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .-- Check the Three Way Catalytic Converter (TWC). Refer to CATALYTIC CONVERTER, CHECKING .	Amplitude ratio O2S > 1.25	Modeled exhaust gas temp. 550...900° C ECT > 70° C Engine speed, 1200-2900 RPM delta engine speed < 350 RPM mass air flow 0.36...1.4 g/REV delta mass air flow < 2.25 g/REV EVAP canister load low	70 Sec	Once/DCY 2 DCY
P0441	Evaporative Emission System Incorrect Purge Flow	Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING .	Reaction of idle controller or lambda controller Deviation less than 4% lambda controller OR idle controller deviation <6.0%	Engine speed, Idle RPM Engine speed Deviation, < 80 RPM ECT, >69.75°C or Substitute ECT, >69.75° IAT, >5 °C IAT at engine start > 5° C altitude < 2500 m	25 Sec	Once/ DCY 2 DCY
P0442	Evaporative Emission System Leak Detected (Small Leak)	Check the EVAP System, for Leaks. Refer to EVAPORATIVE SYSTEM, CHECKING FOR LEAKS .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING .	Time for pressure drop < 1.0...1.3 Sec.	Evap purge valveclosed LDP, Activated Altitude, < 2500 m number of diagnostic attempts <= 2 IAT > 5.25° Delta ambient pressure, 0.5 kPa IAT drop after engine start, < 6 K Time after engine start> 1...1200 Sec. ECT at start, 5.3...35° C Vehicle speed, > 0 mph	140 Sec	2 DCY
P0444	Evaporative Emission System Purge Control Valve Circuit Open	Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .	Signal current < 0.8mA	EVAP purge valve, Commanded off Engine start completed	2.0Sec	Continuous 2 DCY
P0445	Evaporative Emission System Purge Control Valve Circuit shorted	Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .	Signal voltage < 2.0 V	EVAP purge valve, Commanded off Engine start completed	2.0Sec	Continuous 2 DCY
P0445	Evaporative Emission System Purge Control Valve Circuit shorted to B+	Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .	Signal current >1.0 A	EVAP purge valve, Commanded on Engine start completed	2.0Sec	Continuous 2 DCY
P0455	Evaporative Emission System Leak Detected (gross leak/no flow)	Check the EVAP System, for Leaks. Refer to EVAPORATIVE SYSTEM, CHECKING FOR LEAKS .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING .	Time for pressure drop < 0.6...0.7 Sec.	Evap purge valveclosed LDP, Activated Altitude, < 2500 m number of diagnostic attempts <= 2 IAT > 5.25° Delta ambient pressure, 0.5 kPa IAT drop after engine start, < 6 K Time after engine start> 1...1200 Sec. ECT at start, 5.3...35° C Vehicle speed, > 0 mph	140 Sec	Once/DCY 2 DCY
P0456	Evaporative Emission System Leak Detected (very small leak)	Check the EVAP System, for Leaks. Refer to EVAPORATIVE SYSTEM, CHECKING FOR LEAKS .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING .	Time for pressure drop < 4.0...5.5 Sec	Evap purge valveclosed LDP, Activated Altitude, < 2500 m number of diagnostic attempts <= 5 IAT > 5.25° Delta ambient pressure, o.3 kPa IAT drop after engine start, < 6 K Time after engine start> 1...1200 Sec. ECT at start, 5.3...35° C Vehicle speed, 0...80.7 mph vehicle acceleration <\|4\|m/s	140Sec	Once DCY 2 DCY
P0458	Evaporative Emission System Purge Control Valve Circuit Low	Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .	Signal voltage, <2.15...3.25 V	EVAP purge valve, Commanded off Engine speed, >80 RPM	0.5 Sec	Continuous 2 DCY
P0459	Evaporative Emission System Purge Control Valve Circuit High	Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE PURGE REGULATOR VALVE, CHECKING .	Signal current, > 2.20 A	EVAP purge valve, Commanded on Engine speed, >80 RPM	0.5 Sec	Continuous 2 DCY
P0491	Secondary Air System Insufficient Flow. flow check during cat. heating. Bank 1	Check the Secondary Air System.	Relative secondary air mass flow 0.25	Mass air flow, 9...100kg/h Delta engine load, < 10% rev engine speed idle IAT, > 5.3°C altitude, <2500 m air mass integral after engine start > 5 k/g	30...60 Sec	Once/DCY 2 DCY
P0492	Secondary Air System Insufficient Flow. flow check during cat. heating. Bank 2	Check the Secondary Air System.	Relative secondary air mass flow 0.25	Mass air flow, 9...100kg/h Delta engine load, < 10% rev engine speed idle IAT, > 5.3°C altitude, <2500 m air mass integral after engine start > 5 k/g	30...60 Sec	Once/DCY 2 DCY

Speed and idle control

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P050A	Idle Air Control System RPM Lower or Higher Than Expected	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Out of range low engine speed deviation < 80...120 RPM out of range high engine speed deviation > 80...120 RPM		13 Sec	Multiple 2 DCY
P0501	Vehicle Speed Sensor A Range/Performance	Check vehicle speed signal. Refer to SPEED SIGNAL, CHECKING .	VSS signal, < 4 km/h	Engine torque >150 Nm Engine speed, >2500 RPM vehicle speed sensor, no fault	5 Sec	Multiple 2 DCY
P0503	Vehicle Speed Sensor A Out of range high	Check vehicle speed signal. Refer to SPEED SIGNAL, CHECKING .	Vehicle speed >200 km/h		0.5 Sec	Continuous 2 DCY
P0506	Idle Air Control System RPM Lower Than Expected	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Engine speed deviation < 80 RPM	Engine speed idle mass air flow < 1.05 g/Rev evap purge flow < 1kg/h Vehicle speed, 0 MPH idle controller > \|40\|Nm ECT, > 60...110 °C time after engine staart 25 Sec IM press/ambient press. 0.5	13 Sec	Multiple 2 DCY
P0507	Idle Air Control System RPM Higher Than Expected	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Engine speed deviation >-80 RPM	Engine speed idle mass air flow < 1.05 g/Rev evap purge flow < 1kg/h Vehicle speed, 0 MPH idle controller > \|40\|Nm ECT, > 60...110 °C time after engine staart 25 Sec IM press/ambient press. 0.5	13 Sec	Multiple 2 DCY

Control module and output signals

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P0601	Internal Control Module Memory Check Sum Error	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	Internal check sum, incorrect		2 Sec	Once/DCY 2 DCY
P0603	Internal Control Module hardware check	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	SPI communication lost		1 Sec	Continuous 2 DCY
P0604	Internal Control Module Random Access Memory (RAM) Error	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	Memory checksum error	Battery voltage 9...17 V	Immediately	Once/ DCY 2 DCY
P0605	Internal Control Module Read Only Memory (ROM) Error	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	Checksum Incorrect			Continuous 2 DCY
P0606	ECM Processor	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	ROM check failed		2 Sec	Once/ DCY 2 DCY
P0627	Fuel Pump "A" Control Circuit /Open	Check the fuel pressure --. Refer to FUEL PRESSURE TEST .	Internal error fuel pump control unit Feedback from fuel pump control unit Pump blocked short circuit to battery +, ground or open circuit	Battery voltage, > 9-16 V Engine start, Completed	15 Sec	No Mil
P0638	Throttle Actuator Control Range/Performance - Bank 1	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Rationality check: duty cycle > 0.4 Sec at > 98% AND Actual TPS reference point, > 1.5° signal range check: TPS 1 signal voltage 0.208...0.852 OR TPS 2 signal voltage 4.158...4.802 V	Engine speed, < 320 RPM IAT, >5° C Vehicle speed, < 1 MPH ECT, 6...105° C	5 Sec	Once 2 DCY
P0641	Sensor Reference Voltage A Circuit/Open	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	Signal voltage, deviation +/- 0.3 V		0.5 Sec	Continuous 2 DCY
P0642	Sensor Reference Voltage A Circuit Low	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	Signal voltage, < 4.615 V	Threshold values depending on internal 5 V rev voltage	0.15 Sec	Continuous 2 DCY
P0643	Sensor Reference Voltage A Circuit High	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	5 V supply voltage > 5.434 V		0.15 Sec	Continuous 2 DCY
P0651	Sensor Reference Voltage B Circuit/Open	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	Signal voltage, deviation +/- 0.3 V		0.5 Sec	Continuous 2 DCY
P0652	Sensor Reference Voltage B Circuit Low	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	Signal voltage, < 4.615 V		0.15 Sec	Continuous 2 DCY
P0653	Sensor Reference Voltage B Circuit High	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	5 V supply voltage > 5.434 V		0.15 Sec	Continuous 2 DCY
P0657	Actuator Supply Voltage A Circuit / Open	Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY, CHECKING .	Signal current < 0.8 mA	Engine relay, commanded on	1.5 Sec	Continuous 2 DCY
P0658	Actuator Supply Voltage A Circuit Low	Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY, CHECKING .	Signal voltage, < 2.0 V	Engine relay, commanded off	1.5 Sec	Continuous 2 DCY
P0659	Actuator Supply Voltage "A" Circuit High	Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY, CHECKING .	Signal current >1.0 A	Engine relay, commanded on	1.5 Sec	Continuous 2 DCY
P0685	ECM/PCM Power Relay Control Circuit/Open	Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY, CHECKING .	Signal voltage, 2.6-3.7 V Sense circuit voltage, >6 V	ECM keep alive time main relay, Commanded on (Test pulse)	0.5 Sec	2 DCY
P0686	ECM/PCM Power Relay Control Circuit Low	Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY, CHECKING .	Sense circuit voltage, < 4.0 V	ECM keep alive time main relay, Commanded off	0.15 Sec	Once/DCY 2 DCY
P0687	ECM/PCM Power Relay Control Circuit High	Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY, CHECKING .	Sense circuit voltage, > 6 V	Main relay, Commanded on	0.15 Sec	Once/DCY 2 DCY
P0688	ECM/PCM Power Relay Sense Circuit	Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY, CHECKING .	Sense voltage, <3.0 V Difference sense circuit voltage with camshaft actuator commanded off and on >2.5 V Battery voltage > 3 V	Main relay, commanded on ECM keep alive time Switch off test - Failed	1 Sec 4 Sec 2 Sec	2 DCY
P0697	Sensor Reference Voltage C Circuit / Open	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	Signal voltage, deviation +/- 0.3 V		0.5 Sec	Continuous 2 DCY
P0698	Sensor Reference Voltage C Circuit Low	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	Signal voltage, < 4.6-5 V	Threshold values dep. on internal 5 V rev voltage	0.4 Sec	2 DCY
P0699	Sensor Reference Voltage C Circuit High	Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.	5 V supply voltage>4.99-5.41 V	Threshold values dep. on internal 5 V rev voltage	0.4 Sec	2 DCY

Fuel and Air ratios, control module

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P11A2	Cylinder 1 functional check	Check the Cam Adjustment Actuator 1 -F366-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Switch to low lift 0.00147 Sec	> 430, 125 ° KW	0.4 Sec	Every switch 2 DCY
P11A4	Cylinder 1 functional check	Check the Cam Adjustment Actuator 2 -F367-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Switch to high lift 0.00147 Sec	> 430, 125 ° KW	0.4 Sec	Every switch 2 DCY
P11A6	Cylinder 2 functional check	Check the Cam Adjustment Actuator 3 -F368-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Switch to low lift 0.00147 Sec	> 190, 125 ° KW	0.4 Sec	Every switch 2 DCY
P11A8	Cylinder 2 functional check	Check the Cam Adjustment Actuator 4 -F369-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Switch to high lift 0.00147 Sec	> 190, 125 ° KW	0.4 Sec	Every switch 2 DCY
P11AA	Cylinder 3 functional check	Check the Cam Adjustment Actuator 5 -F370-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Switch to low lift 0.00147 Sec	> 670, 125 ° KW	0.4 Sec	Every switch 2 DCY
P11AC	Cylinder 3 functional check	Check the Cam Adjustment Actuator 6 -F371-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Switch to high lift 0.00147 Sec	> 670, 125 ° KW	0.4 Sec	Every switch 2 DCY
P11AE	Cylinder 4 functional check	Check the Cam Adjustment Actuator 7 -F372-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING .	Switch to low lift 0.00147 Sec	> 550, 125 ° KW	0.4 Sec	Every switch 2 DCY
P11B0	Cylinder 4 functional check	Check the Cam Adjustment Actuator 8 -F373-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING .	Switch to high lift 0.00147 Sec	> 550, 125 ° KW	0.4 Sec	Every switch 2 DCY
P11B2	Cylinder 5 functional check	Check the Cam Adjustment Actuator 9 -F374-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING .	Switch to low lift 0.00147 Sec	> 310, 125° KW	0.4 Sec	Every switch 2 DCY
P11B4	Cylinder 5 functional check	Check the Cam Adjustment Actuator 10 -F375-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING .	Switch to high lift 0.00147 Sec	> 310, 125° KW	0.4 Sec	Every switch 2 DCY
P11B6	Cylinder 6 functional check	Check the Cam Adjustment Actuator 11 -F376-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING .	Switch to low lift 0.00147 Sec	> 70, 125° KW	0.4 Sec	Every switch 2 DCY
P11B8	Cylinder 6 functional check	Check the Cam Adjustment Actuator 12 -F377-. Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING .	Switch to high lift 0.00147 Sec	> 70, 125° KW	0.4 Sec	Every switch 2 DCY
P11A1	Cyl 1 low lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11A3	Cyl 1 high lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11A5	Cyl 2 low lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11A7	Cyl 2 high lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11A9	Cyl 3 low lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11AB	Cyl 3 high lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING .	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11AD	Cyl 4 low lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11AF	Cyl 4 high lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11B1	Cyl 5 low lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11B3	Cyl 5 high lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11B5	Cyl 6 low lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P11B7	Cyl 6 high lift electrical problem	Refer to CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING	Internal hardware check	For open circuit to plus and short cut to battery switching active for short to ground..no switching active	0.3 Sec	2 DCY
P1114	Internal resistance too large (Bank 1, sensor 2)	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Heater resistance, (128-648)*(8-40)1.02-25.9 k ohms (dep. on mod. exhaust temp. and heater power)	Battery voltage, 10.7-16.1 V Modeled exhaust gas temp, 300-600 °C Engine shutoff time, 300 Sec. IAT, >6.75 °C	15 Sec	2 DCY
P12A1	Fuel Rail Pressure Sensor Inappropriately Low	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Deviation fuel rail pressure control > 0.06 g/Rev AND deviation lambda control < -22.5%	Engine speed 640...3480 RPM time after engine start > 8 Sec high pressure pump setpoint 0.030...0.12 g/Rev evap canister load < 25% lambda control closed loop fuel cut off not active	5 Sec	Continuous 2 DCY
P12A2	Fuel Rail Pressure Sensor Inappropriately High	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Deviation fuel rail pressure control < 0.015 g/Rev AND deviation lambda control > 30%	Engine speed 640...3480 RPM time after engine start > 8 Sec high pressure pump setpoint 0.030...0.12 g/Rev evap canister load < 25% lambda control closed loop fuel cut off not active	5 Sec	Continuous 2 DCY
P12A4	Fuel Rail Pump Control Valve Stuck Closed	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Deviation fuel rail pressure < 0.120 g/Rev AND deviation lambda controller -15...15% actual pressure above target pressure	Fuel cut off not active engine speed 640...3480 RPM time after engine start > 8 Sec high pressure pump setpoint 0.015....0.12 g/Rev lambda control closed loop EVAP canister load < 25% fuel cut off not active engine speed 640...3480 RPM time after engine start > 8 Sec high pressure pump setpoint 0.030...0.12 g/Rev lambda control closed loop EVAP canister load < 25% control vale commanded open	20 Sec

Fuel and air mixture, additional emissions regulations

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P2004	Intake Manifold Runner Control Stuck Open Bank 1	Check the Intake Flap Motor -V157- /Intake Manifold Runner Position Sensor -G336-.	Normal closed position, unable to reach Signal voltage, <2.62 or >4.65 V or Normal open position, unable to reach signal voltage, <0.35 or >2.38 V	ECM keep alive time Ignition, Off Runner flaps, Commanded closed Battery voltage, >10 V tumble flap, >5%ECT, -40.5-140 °C IAT, -40.5-140 °C Position sensor, No DTC Actuator, No DTC	25 Sec	Once/DCY 2 DCY
P2008	Intake Manifold Runner Control Circuit/Open Bank 1	Check the Intake Flap Motor -V157- /Intake Manifold Runner Position Sensor -G336-.	Signal voltage 4.40...5.60 V	Tumble flap, commanded off engine speed >80 RPM	0.5 Sec	Continuous 2 DCY
P2009	Intake Manifold Runner Control Circuit/Shorted Bank 1	Check the Intake Flap Motor -V157- /Intake Manifold Runner Position Sensor -G336-.	Signal voltage 2.15...3.25 V	Tumble flap, commanded off engine speed >80 RPM	0.5 Sec	Continuous 2 DCY
P2010	Intake Manifold Runner Control Circuit/Shorted to B+ Bank 1	Check the Intake Flap Motor -V157- /Intake Manifold Runner Position Sensor -G336-.	Signal current >2.20 A	Tumble flap, commanded on engine speed >80 RPM	0.5 Sec	Continuous 2 DCY
P2014	Intake Manifold Runner Position Sensor/Switch Circuit Bank 1	Check the Intake Flap Motor -V157- /Intake Manifold Runner Position Sensor -G336-.	Signal voltage, >4.75 V		0.3 Sec	2 DCY
P2015	Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank 1	Check the Intake Flap Motor -V157- /Intake Manifold Runner Position Sensor -G336-.	Deviation runner flap position vs actual position >25 %		1.5 Sec	Multiple 2 DCY
P2016	Intake Manifold Runner Position Sensor/Switch Circuit Low (Bank 1)	Check the Intake Flap Motor -V157- /Intake Manifold Runner Position Sensor -G336-.	Signal voltage, <0.25 V		0.3 Sec	Continuous 2 DCY
P2088	A Camshaft Position Actuator Control Circuit Low Bank 1 short to ground	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal voltage, < 2 V	Camshaft valve commanded off	2 Sec	Continuous 2 DCY
P2089	A Camshaft Position Actuator Control Circuit High Bank 1 short to B+	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal current, > 3 A	Camshaft valve commanded on	0.50 Sec	Continuous 2 DCY
P2090	A Camshaft Position Actuator Control Circuit Low Bank 1 short to ground	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal voltage < 2 V	Camshaft valve commanded off	2 Sec	Continuous 2 DCY
P2091	A Camshaft Position Actuator Control Circuit High Bank 1 short to B+	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal current, > 3 A	Camshaft valve commanded on	2 Sec	Continuous 2 DCY
P2092	A Camshaft Position Actuator Control Circuit Low Bank 2 short to ground	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal voltage, < 2 V	Camshaft valve commanded off	2 Sec	Continuous 2 DCY
P2093	A Camshaft Position Actuator Control Circuit High Bank 2 short to B+	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal current, > 3 A	Camshaft valve commanded on	2 Sec	Continuous 2 DCY
P2094	A Camshaft Position Actuator Control Circuit Low Bank 2 short to ground	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Camshaft valve commanded off	Camshaft valve commanded off	2 Sec	Continuous 2 DCY
P2095	A Camshaft Position Actuator Control Circuit High Bank 2 short to B+	Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .	Signal current, > 3 A	Camshaft valve commanded on	2 Sec	Continuous 2 DCY
P2096	Post Catalyst Fuel Trim out of range high Bank 2	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Integral part of trim control, post cat > 10%	Modeled cat temp.,> 400° C lambda control, closed loop trim control post cat closed loop engine speed 640....4000 RPM engine load 15...70% delta set value 0.985...1.005 delta engine speed < 7500 RPM delta mass air flow < 15 g/Rev accelerator PP value < 1000% mass air flow 9.4...528 kg/h	120 Sec	Continuous 2 DCY
P2097	Post Catalyst Fuel Trim out of range low Bank 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Integral part of trim control, post cat < 10%	Modeled cat temp.,> 400° C lambda control, closed loop trim control post cat closed loop engine speed 640....4000 RPM engine load 15...70% delta set value 0.985...1.005 delta engine speed < 7500 RPM delta mass air flow < 15 g/Rev accelerator PP value < 1000% mass air flow 9.4...528 kg/h	120 Sec	Continuous 2 DCY
P2098	Post Catalyst Fuel Trim out of range high Bank 2	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Integral part of trim control, post cat > 10%	Modeled cat temp.,> 400° C lambda control, closed loop trim control post cat closed loop engine speed 640....4000 RPM engine load 15...70% delta set value 0.985...1.005 delta engine speed < 7500 RPM delta mass air flow < 15 g/Rev accelerator PP value < 1000% mass air flow 9.4...528 kg/h	120 Sec	Continuous 2 DCY
P2099	Post Catalyst Fuel Trim out of range low Bank 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .-- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Integral part of trim control, post cat < 10%	Modeled cat temp.,> 400° C lambda control, closed loop trim control post cat closed loop engine speed 640....4000 RPM engine load 15...70% delta set value 0.985...1.005 delta engine speed < 7500 RPM delta mass air flow < 15 g/Rev accelerator PP value < 1000% mass air flow 9.4...528 kg/h	120 Sec	Continuous 2 DCY

Fuel and air ratio

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P2101	Throttle Actuator Control Motor Circuit Range/Performance	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Duty cycle >.4 Sec at > 98% AND actual TPS ref point > 1.5° OR actual TPS calc value > 0.4 Sec at 8°	Engine start- not active	0.45 Sec	Continuous 2 DCY
P2106	Throttle Actuator Control System - short to B+ or ground	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Internal check failure	Engine start completed	0.45 Sec	Continuous 2 DCY
P2106	Throttle Actuator Control System Open circuit	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Internal check	Duty cycle, >80% OR deviation throttle valve angles vs calculated value, 4.0...50.0%	0.2 Sec	Continuous 2 DCY
P2106	Throttle Actuator Control System temp./current monitoring	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Internal check, failed		0.2 Sec	Continuous 2 DCY
P2106	Throttle Actuator Control System Functional check	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Internal check, failed		0.2 Sec	Continuous 2 DCY
P2110	Throttle Actuator Control System - Forced Limited RPM	Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING .	Engine load Out of range			2 DCY
P2122	Throttle/Pedal Position Sensor/Switch D Circuit Low Input	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	Signal voltage < 0.606 V		0.20 Sec	Continuous 2 DCY
P2123	Throttle/Pedal Position Sensor/Switch D Circuit High Input	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	Signal voltage >4.794 V		0.20 Sec	Continuous 2 DCY
P2127	Throttle/Pedal Position Sensor/Switch E Circuit Low Input	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	Signal voltage < 0.2 V		0.2 Sec	Continuous 2 DCY
P2128	Throttle/Pedal Position Sensor/Switch E Circuit High Input	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	Signal voltage >2.8 V		0.2 Sec	Continuous 2 DCY
P2138	Throttle/Pedal Position Sensor/Switch D / E Rationality check	Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING .	Delta Signal voltage, Sensor 1 vs 2, > 0.24 V		0.35 Sec	Continuous 2 DCY
P2146	Fuel Injector Group A Supply Voltage Circuit / short to ground	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current, >14.90 A	Engine speed >80 RPM	0.5 Sec	Continuous 2 DCY
P2147	Fuel Injector Group A Supply Voltage Circuit / short to ground	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current > 12 A	Injection valve commanded on	3 Sec	Continuous 2 DCY
P2148	Fuel Injector Group A Supply Voltage Circuit / short to B+	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current > 33 A	Injection valve commanded on	3 Sec	Continuous 2 DCY
P2149	Fuel Injector Group B Supply Voltage Circuit / Short to ground	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 2, CHECKING .	Signal current >14.90 A	Engine speed >80 RPM	0.5 Sec	Continuous 2 DCY
P2150	Fuel Injector Group A Supply Voltage Circuit / short to ground	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current > 12 A	Injection valve commanded on	3 Sec	Continuous 2 DCY
P2151	Fuel Injector Group A Supply Voltage Circuit / short to B+	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current > 33 A	Injection valve commanded on	3 Sec	Continuous 2 DCY
P2153	Fuel Injector Group A Supply Voltage Circuit / short to ground	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current > 12 A	Injection valve commanded on	3 Sec	Continuous 2 DCY
P2154	Fuel Injector Group A Supply Voltage Circuit / short to B+	Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, BANK 1, CHECKING .	Signal current > 33 A	Injection valve commanded on	3 Sec	Continuous 2 DCY
P2181	Cooling System Performance	Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR, CHECKING .-- Check the Coolant Pump -V50- Refer to the appropriate service information.-- Check the Coolant Thermostat. Refer to the appropriate service information..	ECT < 75° C mass air integral 3.5...24.0 kg/h	ECT at start, -7...57° C accumulated fuel cut-off time, < 120 Sec delta ambient pressure, < 1.5 kPa vehicle speed, 19...75 MPH mass air flow 50...200 kg/h	500 Sec	Once/DCY 2 DCY
P2195	O2 Sensor Signal Biased/Stuck Lean - Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Lambda value > 1.1	Lambda control, closed loop lambda control post cat closed loop ECT > 60° C engine speed >992 RPM engine speed deviation < 150 Rev engine load 30...399 kg/h delta engine load < 0.15 g/rev lambda deviation < 3% integrated mass air flow 150g modeled exhaust gas temp., 500... 750° C deviation lambda control > 35%	100 Sec	Continuous 2 DCY
P2196	O2 Sensor Signal Biased/Stuck Rich - Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Lambda value < 0.9	Lambda control, closed loop lambda control post cat closed loop ECT > 60° C engine speed >992 RPM engine speed deviation < 150 Rev engine load 30...399 kg/h delta engine load < 0.15 g/rev lambda deviation < 3% integrated mass air flow 150g modeled exhaust gas temp., 500... 750° C deviation lambda control < 35%	100 Sec	Continuous 2 DCY
P2197	O2 Sensor Signal Biased/Stuck Lean - Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Lambda value > 1.1	Lambda control, closed loop lambda control post cat closed loop ECT > 60° C engine speed >992 RPM engine speed deviation < 150 Rev engine load 30...399 kg/h delta engine load < 0.15 g/rev lambda deviation < 3% integrated mass air flow 150g modeled exhaust gas temp., 500... 750° C deviation lambda control > 35%	100 Sec	Continuous 2 DCY
P2198	O2 Sensor Signal Biased/Stuck Rich - Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Lambda value < 0.9	Lambda control, closed loop lambda control post cat closed loop ECT > 60° C engine speed >992 RPM engine speed deviation < 150 Rev engine load 30...399 kg/h delta engine load < 0.15 g/rev lambda deviation < 3% integrated mass air flow 150g modeled exhaust gas temp., 500... 750° C deviation lambda control < 35%	100 Sec	Continuous 2 DCY
P2231	O2 Sensor Signal Circuit Shorted to Heater Circuit	Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR O2S HEATER, CHECKING .	Delta O2S signal front, >190uA	Engine speed, <2700 RPM engine load, <60% heater duty cycle, 20.0...80.0% Modeled exhaust, <800.1 °C lambda set value READ ERROR lambda, 0.95...1.05 O2S Heater no fault	15 Sec	Multiple 2 DCY
P2237	O2 Sensor Positive Current Control Circuit / Open - Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Signal activity check Failed	O2s front no other faults	35 Sec	Continuous 2 DCY
P2240	Open circuit, pump current	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Signal activity check Failed	O2s front no other faults	35 Sec	Continuous 2 DCY
P2243	O2 Sensor Reference Voltage Circuit / Open - Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Functional check failed and intrusive check failed		35 Sec	Continuous 2 DCY
P2247	O2 Sensor Reference Voltage Circuit / Open - Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Functional check failed and signal activity check failed		35 Sec	Continuous 2 DCY
P2251	O2 Sensor Reference Voltage Circuit / Open - Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	Functional check failed and signal activity check failed		45 Sec	Continuous 2 DCY
P2254	O2 Sensor Reference Voltage Circuit / Open - Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .			45 Sec	Continuous 2 DCY
P2257	Air pump relay. short to grnd.	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Signal voltage <2.00 V	Pump relay commanded off igk commanded on	0.1 Sec	Continuous 2 DCY
P2258	Air pump relay. sort to B+.	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Signal current < 0.8	Pump relay commanded on igk commanded on	0.1 Sec	Continuous 2 DCY
P2270	O2 Circuit Slow Response (Bank 1, Sensor 3	Check the Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 -G287-.	Rationality check, O2S signal rear, <0.620...0.654 mV	Mass air flow, >25kg/h O2S rear readiness,>10 Sec modeled exhaust gas temp. >350 °C	100 Sec	2 DCY
P2270	O2 Circuit Slow Response (Bank 1, Sensor 2	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Rationality check, O2S signal rear, <0.557...0.630 mV	Mass air flow, >25kg/h O2S rear readiness,>10 Sec modeled exhaust gas temp. >350 °C	100 Sec	2 DCY
P2271	O2 Circuit (Bank 1, Sensor 3	Check the Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 -G287-.	Measurement range from fuel cut-off to voltage threshold, <=152.3 mV number of checks (initial phase), >=1	Rich voltage, >=547.9 mV lean voltage <=152.3 mV OR Max O2 mass flow (disable), >=5500 mg O2S rear, ready fuel cut-off, active front O2 sensor, lambda signal, >10.00 modeled exhaust gas temp. >400 °C exhaust gas mass flow, >25.0 kg/h rear O2 sensor internal resistance, <=131 Kohms (4.6Kohms for SULEV) or resistance measurement, ready front O2 sensor, sensor cross change, no fault rear O2 sensor heater, wires and oscillating check, no fault purge valve, no fault	0.5 Sec	2 DCY
P2271	O2 Circuit (Bank 1, Sensor 2	Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING .	Rationality check, O2S signal rear, <0.557...0.630 mV	Mass air flow, >25kg/h O2S rear readiness,>10 Sec modeled exhaust gas temp. >350 °C	100 Sec	2 DCY
P2274	O2 Circuit Slow Response (Bank 1, Sensor 3	Check the Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 -G287-.	Rationality check, O2S signal rear, <0.620...0.654 mV	Mass air flow, >25kg/h O2S rear readiness,>10 Sec modeled exhaust gas temp. >350 °C	100 Sec	2 DCY
P2275	O2 Circuit Slow Response (Bank 1, Sensor 3	Check the Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 -G287-.	Measurement range from fuel cut-off to voltage threshold, <=152.3 mV number of checks (initial phase), >=1 ULEV O2S signal rear,>0.620...0.654 mV	Rich voltage, >=547.9 mV lean voltage <=152.3 mV OR Max O2 mass flow (disable), >=5500 mg O2S rear, ready fuel cut-off, active front O2 sensor, lambda signal, >10.00 modeled exhaust gas temp. >400 °C exhaust gas mass flow, >25.0 kg/h rear O2 sensor internal resistance, <=131 Kohms (4.6Kohms for SULEV) or resistance measurement, ready front O2 sensor, sensor cross change, no fault rear O2 sensor heater, wires and oscillating check, no fault purge valve, no fault ULEV mass air flow, >25kg/h O2S rear readiness,>10 Sec modeled exhaust gas temp. >350 °C fuel cut-off >3 Sec	0.5 Sec 100 Sec	2 DCY 2 DCY
P2279	Intake air system leak	Check the Intake Air Temperature (IAT) Sensor -G42- Refer to MANIFOLD ABSOLUTE PRESSURE SENSOR AND INTAKE AIR TEMPERATURE SENSOR, CHECKING	Threshold to detect a defective system >1.33....1.6 AND ratio of the tie system defective during the measurement window to the whole duration of the measurement window >0.60000	Time after engine start >60.0 Sec engine load <40% mass air flow <6553.50 kg/h ECT >49.50 °C IAT <99.80 °C lambda control value >0.95 lambda set value 0.95...1.05 vehicle speed < 1.00km/h lambda control active engine speed idle altitude <2700m O2S front no fault number of checks 3	23 Sec	Multiple 2 DCY
P2293	Fuel Pressure Regulator 2 Performance	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Difference between target pressure vs. actual pressure, >1.50mPa difference between target pressure vs. actual pressure, < -1.50 mPa	Time after engine start, 10.0 Sec fuel cut off, not active	3.5 Sec	Multiple 2 DCY
P2294	Fuel Pressure Regulator 2 Control Circuit open circuit	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Signal current < 0.8 mA	Time after engine start 5...15 Sec	5 Sec	Continuous 2 DCY
P2295	Fuel Pressure Regulator 2 Control Circuit Low short to ground	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Signal voltage < 2.0 V	Time after engine start 5...15 Sec	5 Sec	Continuous 2 DCY
P2296	Fuel Pressure Regulator 2 Control Circuit High	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Signal current > 8.0 A	Time after engine start 5...15 Sec	5 Sec	Continuous 2 DCY

Ignition System

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P2300	Ignition Coil A Primary Control Circuit Low	Check the Ignition Coils with Power Output Stage -N70-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current >24.0 mA	Engine speed, >680 RPM	0.5 Sec	Continuous 2 DCY
P2301	Ignition Coil A Primary Control Circuit High	Check the Ignition Coils with Power Output Stage -N70-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current >5.1...7.0 mA	Engine speed, >680 RPM	0.50 Sec	Continuous 2 DCY
P2303	Ignition Coil B Primary Control Circuit Low	Check the Ignition Coils with Power Output Stage - N127-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current >24.0 mA	Engine speed, >680 RPM	0.50 Sec	Continuous 2 DCY
P2304	Ignition Coil B Primary Control Circuit High	Check the Ignition Coils with Power Output Stage - N127-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current >5.1...7.0 mA	Engine speed, >680 RPM	0.50 Sec	Continuous 2 DCY
P2306	Ignition Coil C Primary Control Circuit Low	Check the Ignition Coils with Power Output Stage -N291-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current >24.0 mA	Engine speed, >680 RPM	0.50 Sec	Continuous 2 DCY
P2307	Ignition Coil C Primary Control Circuit High	Check the Ignition Coils with Power Output Stage -N291-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal voltage >5.1...7.0 mA	Engine speed, >680 RPM		Continuous 2 DCY
P2309	Ignition Coil D Primary Control Circuit Low	Check the Ignition Coils with Power Output Stage -N292-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal current >24.0 mA	Engine speed, >680 RPM	0.5 Sec	Continuous 2 DCY
P2310	Ignition Coil D Primary Control Circuit High	Check the Ignition Coils with Power Output Stage -N292-. Refer to IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING .	Signal voltage >5.1...7.0 mA	Engine speed, >680 RPM	0.5 Sec	Continuous 2 DCY

Additional emission regulations

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P2400	Evaporative Emission System Leak Detection Pump Control Circuit/Open	Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING .	Signal current < 0.8mA	LDP Commanded on Engine speed, > 416 RPM	0.27 Sec	Continuous 2 DCY
P2401	Evaporative Emission System Leak Detection Pump Control Circuit Low	Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING .	Signal voltage < 2.0 V	LDP Commanded off Engine speed, > 416 RPM	0.27 Sec	Continuous 2 DCY
P2402	Evaporative Emission System Leak Detection Pump Control Circuit High	Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING .	Signal current > 1.0 A		0.27 Sec	2 DCY
P2403	Evaporative Emission System Leak Detection Pump Sense Circuit/Open	Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING .	Low signal voltage > 1 Sec	LDP Commanded on Engine speed, >416 RPM	10 Sec	Once/DCY 2 DCY
P2404	Evaporative Emission System Leak Detection Pump Sense Range/Performance	Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING .	High signal voltage over time > 0.36 Sec	LDP Commanded on Engine speed, >416 RPM	10 Sec	Once/DCY 2 DCY
P2414	O2 Sensor Exhaust Sample Error Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	O2S signal front > 3.1 V	Lambda control active engine torque positive engine speed no idle	25 Sec	Continuous 2 DCY
P2415	O2 Sensor Exhaust Sample Error Bank 1, Sensor 1	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	O2S signal front > 3.1 V	Lambda control active engine torque positive engine speed no idle	25 Sec	Continuous 2 DCY
P2431	Rationality check	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM .	Difference between SAI pressure, AMP, and MAP -60...50 h/Pa	Ambient pressure sensor no fault manifild air pressure sensor no fault SAI done	60 Sec	2 DCY
P2432	Signal range check	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM l.	Signal voltage, <0.5 V	Ambient pressure sensor no fault	0.5 Sec	Continuous 2 DCY
P2433	Signal range check	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Signal voltage, >4.5 V	Ambient pressure sensor no fault	0.5 Sec	Continuous 2 DCY
P2440	Stuck open-Bank 1	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Blockage: relative SAIR pressure (phase 1) >= 0.5...0.648 leakage: relative SAIR pressure (phase 1) >= 0.602 and (phase 2) < 0.75	Air valve commanded off air pump commanded on	20 Sec	Once 2 DCY
P2442	Stuck open-Bank 2	Check the Secondary Air System. Refer to SECONDARY AIR INJECTION SYSTEM	Blockage: relative SAIR pressure (phase 1) >= 0.5...0.648 leakage: relative SAIR pressure (phase 1) >= 0.602 and (phase 2) < 0.75	Air valve commanded off air pump commanded on	20 Sec	Once 2 DCY
P2539	Low Pressure Fuel System Sensor Circuit	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Signal voltage > 4.6 V		2 Sec	Continuous 2 DCY
P2540	Low Pressure Fuel System Sensor Circuit Range/Performance	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Actual pressure Deviation < 800 kPa <80 kPa		5 Sec	2 DCY
P2541	Low Pressure Fuel System Sensor Circuit Low	Check the Fuel Pressure Sensor -G247-. FUEL PRESSURE SENSOR, CHECKING	Signal voltage < 0.2 V		2 Sec	Continuous 2 DCY
P2626	Open circuit adjustment voltage (IA)	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	O2S signal front > 4.7 V	Modeled exhaust temp, > 380° C Fuel cut off, > 2 Sec	4Sec	Continuous 2 DCY
P2629	Open circuit adjustment voltage (IA	Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to HEATED OXYGEN SENSOR HO2S, CHECKING .	O2S signal front > 4.7 V	Modeled exhaust temp, > 380° C Fuel cut off, > 2 Sec	4Sec	Continuous 2 DCY

Fuel and air mixture, additional emissions regulations

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P3081	Engine Temperature Too Low	Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR, CHECKING .	Step 1 modeled ECT > 30° C AND ECT < 30° C	Step 1 passed	2 Sec	Continuous 2 DCY

Control module and output signals

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
U0001	High Speed CAN Communication Bus	Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .	CAN message, No feedback	Battery voltage 9...17 V	.51 Sec	Continuous 2 DCY
U0002	High Speed CAN Communication Bus	Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .	Global time out receiving message	Battery voltage 9...17 V	.51 Sec	Continuous 2 DCY
U0100	Lost Communication with ECM/PCM A	Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .	Failure of all CAN engine messages, Time out more than 490 mSec Failure of all CAN engine messages but not all CAN messages, Time out more than 1010 mSec	No bus off error No error failure of all CAN messages No error failure of all CAN engine messages Terminal 15 Voltage, > 9 V for more than 500 mSec > 500 mSec after reset	1 Sec
U0101	Lost Communication with TCM	Check the CAN-Bus terminal resistance, Direct Shift Gearbox (DSG) Mechatronic -J743- to Motronic Engine Control Module (ECM) - J623-. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .	Time out check No message received from TCM	Battery voltage 9...17 V	0.51Sec	Continuous 2 DCY
U0121	CAN / TCU communication error	Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .	No CAN msg received from TCU	Battery voltage 9...17 V	.51 Sec	Continuous 2 DCY
U0146	CAN gateway A	Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .	CAN communication with gateway, time-out		0.50 Sec	2 DCY
U0302	Software Incompatibility with Transmission Control Module	Replace the Direct Shift Gearbox (DSG) Mechatronic -J743-. Refer to appropriate service information.	MT vehicle ECM coded as AT vehicle AT vehicle ECM coded as MT vehicle	Battery voltage 9...17 V	5 Sec	Continuous 2 DCY
U0323	CAN: Instrument cluster Audi only	Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .	Ambient temp value module not encoded for ambient temp sensor, 00h	Key on status ambient temp from instrument cluster, no fault	2 Sec	Multiple 2 DCY
U0402	CAN communication with TCM	Check the CAN-Bus terminal resistance, Selector Lever -E313- to Motronic Engine Control Module (ECM) - J623	Data length code transmitted, incorrect	Battery voltage 9...17 V	0.51 Sec	Continuous 2 DCY
U0404	Invalid Data Received From Gear Shift Control Module	Check the CAN-Bus terminal resistance, Selector Lever -E313- to Motronic Engine Control Module (ECM) - J623-.	If the value of message counter is permanent, constant, or change exceeds a threshold, increment an event counter maximum change of message counter > 5	No failure of selector lever CAN messages Terminal 15 voltage > 4 V for more than 500 mSec	50 mSec	Continuous 2 DCY
U0415	CAN link to speed sensor out of range	Check the Engine Speed (RPM) Sensor -G28- Refer to ENGINE SPEED SENSOR, CHECKING	Invalid data received from TCU implausible message	Battery voltage 9...17 V	0.51 Sec	Continuous 2 DCY
U0422	CAN: Instrument cluster	Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .	Ambient temp. value (initialization), Audi, 01h	Key on status ambient temp from instrument cluster no fault electrical check ambient temp. sensor, no fault	2.0 Sec	Multiple 2 DCY
U0447	CAN gateway	Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .	CAN message, incorrect		0.50 Sec	Continuous 2 DCY

CAMSHAFT ADJUSTMENT VALVE 1, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirements

Scheme 127

The Camshaft Adjustment Valve 1 -N205- fuse OK.
Motronic Engine Control Module (ECM) Power Supply Relay J271 OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Scheme 128

Disconnect Camshaft Adjustment Valve 1 -N205- electrical harness connector -1-.

Scheme 129

Using a multimeter, check the Camshaft Adjustment Valve 1 -N205- for resistance.

Scheme 130

Specified value: 5.0 to 8.0 ohms (at approx. 20° C)

If the specified value was not obtained

Replace the Camshaft Adjustment Valve 1 -N205-. Refer to appropriate service information.

If the specified value was obtained

Checking voltage

Switch the ignition on.

Using a multimeter, Check the Camshaft Adjustment Valve 1 -N205- electrical harness connector terminal 1 to engine ground for voltage.

Switch the ignition off.

Specified value: battery voltage.

If the specified value was not obtained

Check the wiring connections for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Camshaft Adjustment Valve 1 -N205- electrical harness connector terminal 2 to the Motronic Engine Control Module (ECM) electrical harness connector T60 terminal 54 for an open circuit.

Scheme 131

Camshaft Adjustment Valve 1 -N205- electrical harness connector terminal	Motronic Engine Control Module (ECM) electrical harness connector T60 terminal or test box socket
2	54

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring connection for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was not OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CAMSHAFT ADJUSTMENT VALVE 2, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirements

The Camshaft Adjustment Valve 2 -N208- fuse OK.
Motronic Engine Control Module (ECM) Power Supply Relay J271 OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Disconnect Camshaft Adjustment Valve 2 -N208- electrical harness connector -2-.

Using a multimeter, check the Camshaft Adjustment Valve 2 -N208- for resistance.

Specified value: 5.0 to 8.0 ohms (at approx. 20° C)

If the specified value was not obtained

Replace the Camshaft Adjustment Valve 2 -N208-. Refer to appropriate service information.

If the specified value was obtained

Checking voltage

Switch the ignition on.

Using a multimeter, Check the Camshaft Adjustment Valve 2 -N208- electrical harness connector terminal 1 to engine ground for voltage.

Switch the ignition off.

Specified value: battery voltage.

If the specified value was not obtained

Check the wiring connections for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Camshaft Adjustment Valve 2 -N208- electrical harness connector terminal 2 to the Motronic Engine Control Module (ECM) electrical harness connector T60 terminal 39 for an open circuit.

Camshaft Adjustment Valve 2 -N208- electrical harness connector terminal	Motronic Engine Control Module (ECM) electrical harness connector T60 terminal or test box socket
2	39

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring connection for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was not OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CAMSHAFT ADJUSTMENT VALVE 1, EXHAUST, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirements

The Camshaft Adjustment Valve 1 (exhaust) -N318- fuse OK.
Motronic Engine Control Module (ECM) Power Supply Relay J271 OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Disconnect Camshaft Adjustment Valve 1 (exhaust) -N318- electrical harness connector -2-.

Scheme 132

Using a multimeter, check the Camshaft Adjustment Valve 1 (exhaust) -N318- for resistance.

Specified value: 5.0 to 8.0 ohms (at approx. 20° C)

If the specified value was not obtained

Replace the Camshaft Adjustment Valve 1 (exhaust) -N318-. Refer to appropriate service information.

If the specified value was obtained

Checking voltage

Switch the ignition on.

Using a multimeter, Check the Camshaft Adjustment Valve 1 (exhaust) -N318- electrical harness connector terminal 1 to engine ground for voltage.

Switch the ignition off.

Specified value: battery voltage.

If the specified value was not obtained

Check the wiring connections for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Camshaft Adjustment Valve 1 (exhaust) -N318- electrical harness connector terminal 2 to the Motronic Engine Control Module (ECM) electrical harness connector T60 terminal 26 for an open circuit.

Camshaft Adjustment Valve 1 (exhaust) -N318- electrical harness connector terminal	Motronic Engine Control Module (ECM) electrical harness connector T60 terminal or test box socket
2	26

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring connection for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was not OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CAMSHAFT ADJUSTMENT VALVE 2, EXHAUST, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirements

The Camshaft Adjustment Valve 2 (exhaust) -N319- fuse OK.
Motronic Engine Control Module (ECM) Power Supply Relay J271 OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Disconnect Camshaft Adjustment Valve 2 (exhaust) -N319- electrical harness connector -4-.

Scheme 133

Using a multimeter, check the Camshaft Adjustment Valve 2 (exhaust) -N319- for resistance.

Specified value: 5.0 to 8.0 ohms (at approx. 20° C)

If the specified value was not obtained

Replace the Camshaft Adjustment Valve 2 (exhaust) -N319-. Refer to appropriate service information.

If the specified value was obtained

Checking voltage

Switch the ignition on.

Using a multimeter, Check the Camshaft Adjustment Valve 2 (exhaust) -N319- electrical harness connector terminal 1 to engine ground for voltage.

Switch the ignition off.

Specified value: battery voltage.

If the specified value was not obtained

Check the wiring connections for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Camshaft Adjustment Valve 2 (exhaust) -N319- electrical harness connector terminal 2 to the Motronic Engine Control Module (ECM) electrical harness connector T60 terminal 10 for an open circuit.

Camshaft Adjustment Valve 2 (exhaust) -N319- electrical harness connector terminal	Motronic Engine Control Module (ECM) electrical harness connector T60 terminal or test box socket
2	10

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring connection for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was not OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CAMSHAFT POSITION SENSOR, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirements

The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Disconnect the Camshaft Position (CMP) Sensor -G40- electrical harness connector -1-.

Scheme 134

Switch the ignition on.

Using a multimeter, Check the Camshaft Position (CMP) Sensor -G40- electrical harness connector terminals 1 to 3 for voltage.

Scheme 135

Specified value: about 5.0 V

Switch the ignition off.

If the specification was not obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Camshaft Position (CMP) Sensor -G40- electrical harness connector to the Motronic Engine Control Module (ECM) electrical harness connector T60 for an open circuit.

Scheme 136

Camshaft Position (CMP) Sensor -G40- electrical harness connector terminals	Motronic Engine Control Module (ECM) electrical harness connector T60 terminals or test box sockets
1	35
2	55
3	50

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was OK

Replace the Camshaft Position (CMP) Sensor -G40-. Refer to appropriate service information.

If no malfunction is found in the wiring and voltage supply was not OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CAMSHAFT POSITION SENSOR 2, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirements

The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Disconnect the Camshaft Position (CMP) Sensor 2 -G163- electrical harness connector -1-.

Switch the ignition on.

Using a multimeter, Check the Camshaft Position (CMP) Sensor 2 -G163- electrical harness connector terminals 1 to 3 for voltage.

Specified value: about 5.0 V

Switch the ignition off.

If the specification was not obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Camshaft Position (CMP) Sensor 2 -G163- electrical harness connector to the Motronic Engine Control Module (ECM) electrical harness connector T60 for an open circuit.

Camshaft Position (CMP) Sensor 2 -G163- electrical harness connector terminals	Motronic Engine Control Module (ECM) electrical harness connector T60 terminals or test box sockets
1	T94/63
2	40
3	50

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was OK

Replace the Camshaft Position (CMP) Sensor 2 -G163-. Refer to appropriate service information.

If no malfunction is found in the wiring and voltage supply was not OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CAMSHAFT POSITION SENSOR 3, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirements

The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Disconnect the Camshaft Position (CMP) Sensor 3 -G300- electrical harness connector -1-.

Scheme 137

Switch the ignition on.

Using a multimeter, Check the Camshaft Position (CMP) Sensor 3 -G300- electrical harness connector terminals 1 to 3 for voltage.

Specified value: about 5.0 V

Switch the ignition off.

If the specification was not obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Camshaft Position (CMP) Sensor 3 -G300- electrical harness connector to the Motronic Engine Control Module (ECM) electrical harness connector T60 for an open circuit.

Camshaft Position (CMP) Sensor 3 -G300- electrical harness connector terminals	Motronic Engine Control Module (ECM) electrical harness connector T60 terminals or test box sockets
1	T94/63
2	25
3	50

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was OK

Replace the Camshaft Position (CMP) Sensor 3 -G300-. Refer to appropriate service information.

If no malfunction is found in the wiring and voltage supply was not OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CAMSHAFT POSITION SENSOR 4, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirements

The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Disconnect the Camshaft Position (CMP) Sensor 4 -G301- electrical harness connector -10-.

Scheme 138

Switch the ignition on.

Using a multimeter, Check the Camshaft Position (CMP) Sensor 4 -G301- electrical harness connector terminals 1 to 3 for voltage.

Specified value: about 5.0 V

Switch the ignition off.

If the specification was not obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Camshaft Position (CMP) Sensor 4 -G301- electrical harness connector to the Motronic Engine Control Module (ECM) electrical harness connector T60 for an open circuit.

Camshaft Position (CMP) Sensor 4 -G301- electrical harness connector terminals	Motronic Engine Control Module (ECM) electrical harness connector T60 terminals or test box sockets
1	T94/63
2	11
3	50

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was OK

Replace the Camshaft Position (CMP) Sensor 4 -G301-. Refer to appropriate service information.

If no malfunction is found in the wiring and voltage supply was not OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CAMSHAFT ADJUSTMENT ACTUATORS, RIGHT BANK 1, CHECKING

The following procedure is used to diagnose Cam Adjustment Actuators -F366, F367, F368, F369, F370, F371- which are controlled by Engine Control Module - J623-.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Engine Control Module - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Disconnect appropriate Cam Adjustment Actuator -F366, F367, F368, F369, F370, F371- electrical harness connectors -9, 8, 7, 6, 5, 4-.

Checking internal resistance

Using a multimeter, check the Cam Adjustment Actuators -F366, F367, F368, F369, F370, F371- for resistance.

Specified value: 5.0 to 10.0 ohms (at approx. 20° C)

If the specified value was not obtained

Replace the appropriate Cam Adjustment Actuator -F366, F367, F368, F369, F370, F371-. Refer to the appropriate service information.

If the specified value was obtained

Checking voltage

Turn the key on

Using a multimeter, check pin 2 of Cam Adjustment Actuators -F366, F367, F368, F369, F370, F371- for battery voltage.

If voltage not present, check for opens, shorts to ground between applicable Cam Adjustment Actuator and Engine Component Power Supply Relay -J757- socket 4.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module -J623-. Refer to the appropriate service information.

Using a multimeter, Check the Cam Adjustment Actuator -F366, F367, F368, F369, F370, F371- electrical harness connector to the Engine Control Module - J623- electrical harness connector for resistance.

Cam Adjustment Actuator -F366, F367, F368, F369, F370, F371- electrical harness connector terminals	Engine Control Module - J623- electrical harness connector T94/60 terminals or test box sockets
F366 1	T 94- 21
F367 1	T 94- 50
F368 1	T 94- 24
F369 1	T 94- 23
F370 1	T 60- 20
F371 1	T 60- 5

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and the resistance was OK

Replace the Engine Control Module -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse order of the removal, note the following

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CAMSHAFT ADJUSTMENT ACTUATORS, LEFT BANK 2, CHECKING

The following procedure is used to diagnose Cam Adjustment Actuators -F372, F373, F374, F375, F376, F377- which are controlled by Engine Control Module - J623-.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Engine Control Module - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Disconnect appropriate Cam Adjustment Actuators -F372, F373, F374, F375, F376, F377- electrical harness connectors -7, 6, 5, 4, 3, 2-.

Checking internal resistance

Using a multimeter, check the Cam Adjustment Actuators -F372, F373, F374, F375, F376, F377- for resistance.

Specified value: 5.0 to 10.0 ohms (at approx. 20° C)

If the specified value was not obtained

Replace the appropriateCam Adjustment Actuators -F372, F373, F374, F375, F376, F377-. Refer to the appropriate service information.

If the specified value was obtained

Checking voltage

Turn the key on

Using a multimeter, check pin 2 of Cam Adjustment Actuators -F372, F373, F374, F375, F376, F377- for battery voltage.

If voltage not present, check for opens, shorts to ground between applicable Cam Adjustment Actuator and Engine Component Power Supply Relay -J757- socket 4.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module -J623-. Refer to the appropriate service information.

Using a multimeter, Check the Cam Adjustment Actuators -F372, F373, F374, F375, F376, F377- electrical harness connector to the Engine Control Module - J623- electrical harness connector for resistance.

Cam Adjustment Actuators -F372, F373, F374, F375, F376, F377- electrical harness connector terminals	Engine Control Module - J623- electrical harness connector T94/60 terminals or test box sockets
F372 1	T 94- 94
F373 1	T 94- 70
F374 1	T 94- 49
F375 1	T 94- 28
F376 1	T 60- 51
F377 1	T 60- 93

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and the resistance was OK

Replace the Engine Control Module -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse order of the removal, note the following

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

SPEED SIGNAL, CHECKING

The following procedure requires a test drive. Observe all safety precautions.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Speedometer -G21- OK.
The Motronic Engine Control Module (ECM) -J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Connect the scan tool.

Perform a road test with a vehicle speed greater than 5 Km/h.

Using the scan tool, Check the vehicle speed

Diagnostic text		Specified value
Vehicle Speed		Approx. Vehicle Speed

Compare the vehicle speed on the scan tool to the Speedometer -G21-.

Specified value: a difference of no greater than 10%.

If the specified value was not obtained or no speed was displayed

Check the wiring from the Motronic Engine Control Module (ECM) -J623- to the Instrument Cluster Control Module -J285- for an open circuit, Short to Battery (+), or to Ground (GND).

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CAN BUS TERMINAL RESISTANCE, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirement

A CAN-Bus malfunction was recognized.
The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Function

The Motronic Engine Control Module (ECM) -J623- communicates with other CAN-Bus capable control modules.

The control modules are connected by two data bus wires which are twisted together (CAN_High and CAN_Low), and exchange information (messages). Missing information on the CAN-bus is recognized as a malfunction by the Motronic Engine Control Module (ECM) -J623- and the other control modules connected to the CAN-bus.

Trouble-free operation of the CAN-Bus requires that it have a terminal resistance. This central terminal resistance is located in the Motronic Engine Control Module (ECM) -J623-.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Disconnect the Data Bus On Board Diagnostic Interface -J533- electrical harness connector.

Note. The Motronic Engine Control Module (ECM) -J623- must remain connected for the following step.

Using a multimeter, check the Data Bus On Board Diagnostic Interface -J533- electrical harness connector terminals 6 to 16 for resistance.

Specified value: 60 to 72 ohms (at approx. 20° C)

If the specified value was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Data Bus On Board Diagnostic Interface -J533- electrical harness connector to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T94 for resistance.

Data Bus On Board Diagnostic Interface -J533- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector T94 terminals or test box sockets
6 (Can_Bus Low)	67
16 (Can_Bus High)	68

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring

Replace the Data Bus On Board Diagnostic Interface -J533-. Refer to the appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

CATALYTIC CONVERTER, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Prior to repair work, perform a preliminary check to verify the condition. Refer to PRELIMINARY CHECK .

Special tools and workshop equipment required

Generic scan tool

Test requirements

Battery voltage at least 12.5 volts.
Oxygen Sensors OK.
No leaks or damage to exhaust system.

Function test

Perform the function test in Diagnostic Mode 06. Refer to DIAGNOSTIC MODE 06 - READ TEST RESULTS FOR SPECIFIC DIAGNOSTIC FUNCTIONS .

End diagnosis and switch the ignition off.

If the specified values are exceeded

Check the exhaust system for leaks.

If necessary, repair the leak in the exhaust system.

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify Repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If no leaks are found in the exhaust system

Replace the catalytic converter with front exhaust pipe. Refer to the appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

ENGINE COOLANT TEMPERATURE SENSOR, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Prior to repair work, perform a preliminary check to verify the condition. Refer to PRELIMINARY CHECK .

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, refer to the applicable wiring diagram.

Special tools and workshop equipment required

Generic scan tool
Multimeter
Wiring diagram

Test requirements

The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.
Engine cold.

Test procedure

Start diagnosis

Connect the scan tool.

Switch the ignition on.

Using the scan tool, check the coolant temperature

Diagnostic text		Specified value
Coolant temperature		Approx. coolant temperature

If the specified value is not obtained

Continue test according to the following table

Indicated	Cause	Test
Approx. - 40.0° C	Open circuit or short circuit to (B+)	TESTING IF DISPLAY IS APPROX. - 40.0° C
Approx. 140.0° C	Short circuit to Ground (GND)	TESTING IF DISPLAY APPROX. 140.0° C

If the specified value was obtained

Start the engine and let it run at idle.

The temperature value must increase uniformly in increments of 1.0° C.

If the engine shows problems in certain temperature ranges and if the temperature does not climb uniformly, the temperature signal is intermittent.

Replace the the Engine Coolant Temperature (ECT) Sensor - G62-. Refer to the appropriate service information

Checking internal resistance

Disconnect the Engine Coolant Temperature (ECT) Sensor -G62- electrical harness connector -arrow-.

Scheme 139

Using a multimeter, check the Engine Coolant Temperature (ECT) Sensor -G62- terminals 1 to 2 for resistance.

Use the chart below for the specified values

Specified values

ECT Temperature vs Resistance
Temp (C)	Min value ohms	Max value ohms
40	36816	43714
35	28840	33978
25	17680	20530
15	10940	12534
5	6897	7804
0	5535	6226
5	4443	4970
15	2923	3235
25	1978	2167
35	1369	1486
45	965	1039
55	692	738
65	503	533
75	372	392
85	279	292
95	213	223
105	164	172
115	127	134
125	99	106
135	78	84

If any of the specified values was not obtained

Replace the Engine Coolant Temperature (ECT) Sensor - G62-. Refer to appropriate service information.

Testing if display is approx. - 40.0° C

Disconnect the Engine Coolant Temperature (ECT) Sensor -G62- electrical harness connector -arrow-.

Using a jumper wire, connect the Engine Coolant Temperature (ECT) Sensor -G62- electrical harness connector terminals 1 to 2.

Check the value indicated on the scan tool display.

If the value jumps to approx. 140.0° C

End diagnosis and switch the ignition off.

Replace the Engine Coolant Temperature (ECT) Sensor - G62-. Refer to appropriate service information.

If indication remains at approx. -40.0° C

Testing If Display Approx. 140.0° C

Disconnect the Engine Coolant Temperature (ECT) Sensor -G62- electrical harness connector -arrow-.

If indication jumps to approx. -40.0° C

End diagnosis and switch ignition off.

Replace the Engine Coolant Temperature (ECT) Sensor - G62-. Refer to appropriate service information.

If indication remains at approx. 140.0° C

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, check the Engine Coolant Temperature (ECT) Sensor - G62- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminals for an open circuit according to the wiring diagram.

Engine Coolant Temperature (ECT) Sensor - G62- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector T60 terminals or test box socket
1	50
2	27

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Final Procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

ENGINE COOLANT TEMPERATURE SENSOR ON RADIATOR, CHECKING

WARNING

Cooling system is under pressure. Danger of scalding when opening!

Note. Use only gold-plated terminals when servicing terminals in the electrical harness connector of Engine Coolant Temperature (ECT) Sensor (on Radiator) -G83-.

Special tools and workshop equipment required

Multimeter.
Wiring diagram.

Test requirements

The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.
Engine cold.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Checking internal resistance

Disconnect the Engine Coolant Temperature (ECT) Sensor (on Radiator) -G83- electrical harness connector -1-.

Scheme 140

Using a multimeter, check the Engine Coolant Temperature (ECT) Sensor (on Radiator) -G83- terminals 1 to 2 for resistance.

Use the chart below for the specified values

Specified values

ECT Temperature vs Resistance
Temp (C)	Min value ohms	Max value ohms
40	36816	43714
35	28840	33978
25	17680	20530
15	10940	12534
5	6897	7804
0	5535	6226
5	4443	4970
15	2923	3235
25	1978	2167
35	1369	1486
45	965	1039
55	692	738
65	503	533
75	372	392
85	279	292
95	213	223
105	164	172
115	127	134
125	99	106
135	78	84

If any of the specified values was not obtained

Replace the Engine Coolant Temperature (ECT) Sensor (on Radiator) -G83-. Refer to the appropriate service information.

If any of the specified values was obtained

Checking wiring

If the manufacturers test box is being used. Perform the following step.

Install the test box. Refer to the appropriate service information.

If the manufacturers test box is not being used. Perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a Multimeter --, check the Engine Coolant Temperature (ECT) Sensor (on Radiator) -G83- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T121 terminals for an open circuit according to the wiring diagram.

Engine Coolant Temperature (ECT) Sensor (on Radiator) -G83- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector 121 terminals or test box socket
1	17
2	50

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

ENGINE SPEED SENSOR, CHECKING

Note. Use only gold-plated terminals when servicing terminals in the electrical harness connector of the Engine Speed (RPM) Sensor -G28-.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Function

The Engine Speed (RPM) Sensor -G28- detects RPM and reference marks. Without an engine speed signal, the engine will not start. If the engine speed signal fails while the engine is running, the engine will stop immediately.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Connect the scan tool.

Switch the ignition on.

Using the scan tool, check the engine speed

Diagnostic text		Specified value
Engine rotations per minute (RPM)		Idle speed

End diagnosis and switch ignition off.

If the specified value was not obtained

Checking internal resistance

Disconnect the Engine Speed (RPM) Sensor -G28- electrical harness connector.

Using a multimeter, check the Engine Speed (RPM) Sensor -G28- terminals 1 to 2 for resistance.

Scheme 141

Specified value: 450 to 1200 ohms

If the specified value is not obtained

Replace the Engine Speed (RPM) Sensor -G28-. Refer to appropriate service information.

If the specified values are obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, check the Engine Speed (RPM) Sensor -G28- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminals for an open circuit.

Scheme 142

Engine Speed (RPM) Sensor -G28- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector T60 terminals or test box socket
1	14
2	53
3	50

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Remove the Engine Speed (RPM) Sensor -G28- and check the sensor wheel for proper seating, damage and run-out. Refer to appropriate service information.

If the sensor wheel is OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

ENGINE COMPONENT POWER SUPPLY RELAY, CHECKING

Special tools and workshop equipment required

multimeter.
wiring diagrams.

Test requirements

Fuse -SA2- OK.
The Engine Control Module Power Supply Relay -J271- OK.
The Ground (GND) connections at the engine and transmission OK.
The battery voltage at least 12.5 V.
The generator OK.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Using a multimeter, check the following wiring connection for voltage.

Engine Component Power Supply Relay -J757- socket	Measure to
2	Engine Ground (GND)

Specified value: 12.5 V

If the specified value was not obtained

Check the Engine Component Power Supply Relay -J757- socket 2 to the Battery -A- positive terminal for an open circuit or short to Ground (GND).

Check the electrical harness connectors for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Switch the engine on.

Using a multimeter, check the following wiring connection for voltage.

Engine Component Power Supply Relay -J757- socket	Measure to
8	Engine Ground (GND)

Specified value: 12.5 V

Switch the engine off.

If the specified value was not obtained

Check the Engine Component Power Supply Relay -J757- socket 8 to Fuse -SB5- \ for an open circuit or short to Ground (GND).

Check the electrical harness connectors for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking Ground (GND)

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the following wiring connection for resistance.

Engine Component Power Supply Relay -J757- socket	Engine Control Module -J623- electrical harness connector T94 or test box socket
6	72

Specified value: 1.5 ohms.

If the specified value was not obtained

Check the Engine Component Power Supply Relay -J757- socket 6 to the Engine Control Module -J623- electrical harness connector T94 terminal 72 for an open circuit or a short to Battery (+).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring and the voltage supply was OK

Replace the Engine Component Power Supply Relay -J757-.

Perform a road test to verify repair.

If the fault does not return

Generate readiness code. Refer to READINESS CODE .

If the fault does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse of the removal.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

EVAPORATIVE PURGE REGULATOR VALVE, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, refer to the applicable wiring diagram.

Special tools and workshop equipment required

multimeter
Wiring diagram.

Test requirements

The Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- fuse OK.
The ignition switched off.

Note. Voltage for the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- is supplied via the Engine Component Power Supply Relay -J757- socket 8.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Disconnect the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- electrical harness connector -1-.

Scheme 143

Checking internal resistance

Using a multimeter, check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- terminals 1 and 2 for resistance.

Specified value: 25.0 to 36.0 ohms.

If the specified value is not obtained

Replace the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-.

If the specification is obtained

Checking voltage supply

Using a multimeter, check the electrical harness connector terminal 1 to 2 for voltage.

Scheme 144

Operate the starter briefly.

Specified value: battery voltage.

If the specified value was not obtained

Using a multimeter, check the electrical harness connector terminal 1 for voltage.

Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- electrical harness connector terminal	Measure to
1	Engine Ground (GND)

Operate the starter briefly.

Specified value: battery voltage.

If the specified value is not obtained

Check the wiring connection from the electrical harness connector terminal 1 to the Engine Component Power Supply Relay -J757- socket 8.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If the specified value was obtained

Check Ground (GND) activation

Using a multimeter, check the electrical harness connector for voltage.

Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- electrical harness connector terminal	Measure to
2	Battery positive (+)

Operate the starter briefly.

Specified value: battery voltage.

Switch the ignition off.

If the specified value was not obtained

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- electrical connector terminal 2 to Motronic Engine Control Module (ECM) -J220- electrical connector T94 for an open circuit.

Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- electrical harness connector terminal	Motronic Engine Control Module (ECM) -J623- electrical connector T94 terminal test box socket
2	75

Specified value: 1.5 ohms max.

If the specification is not obtained

Check the wiring for a short circuit to Battery positive (+) or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If the specification was obtained

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

EVAPORATIVE SYSTEM, CHECKING FOR LEAKS

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Perform a preliminary check to verify the condition: PRELIMINARY CHECK .

Special tools and workshop equipment required

Smoke tester
Evaporative and fuel supply system vacuum hose and line routing diagram

Test procedure

Using a smoke tester, check the evaporative emission system for leaks.

Note. Always follow the manufacturers directions for the proper installation and operation of the smoke tester being used.

Note. Secure all hose connections using hose clamps appropriate for the model type. Replace seals and gaskets when performing repair work.

If a leak is detected

Check the fuel filler cap seal for damage and for proper installation. Replace if necessary.

Check the seals under the locking flanges and the union nuts are properly tightened on the fuel tank.

Check all hose connections of the evaporative system and replace or repair any leaking lines.

Repair or replace any damaged component.

If no leaks are found

Erase the DTC memory if a DTC was set.

Perform a road test to verify repair.

Generate readiness code.

If a DTC was set and does not return

Repair complete, generate readiness code.

If the DTC does return and no leaks are found in the evaporative and fuel supply system

Check the DTC memory for any DTC codes pertaining to the evaporative and fuel supply systems. If a DTC is stored, perform the diagnostic test procedure for the suspected component.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

FUEL INJECTORS, BANK 1, CHECKING

The following test procedure is used to diagnose fuel injectors Fuel Injectors -N30, N31, N32- controlled by the Engine Control Module (ECM) -J623-.

Special tools and workshop equipment required

multimeter.
Diode test lamp (12V).
Wiring diagram.

Test requirements

The Engine Control Module (ECM) -J623- fuses OK.
The Engine Speed (RPM) Sensor -G28- OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Observe Safety Precautions.

Observe Clean Working Conditions.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Disconnect the 6 pin electrical harness connector -1- for Fuel Injectors -N30, N31, N32- from the right rear of the engine.

Scheme 145

Checking internal resistance

Using a multimeter, check harness terminals of connector -1- for resistance.

Injector	6- pin electrical harness connector terminals
Injector N30	1 to 2
Injector N31	3 to 4
Injector N32	5 to 6

Specified value: 12.0 to 20.0 ohms (at approx. 20° C)

If the specified value was not obtained

Replace the faulty Fuel Injector --. Refer to the appropriate service information.

If the specified value was obtained

Checking activation

Connect a diode test lamp (12V) to the Fuel Injector -- electrical harness connector terminals 1 and 2 of the Fuel Injector -- to be tested.

Scheme 146

Operate the starter and test the activation of the Fuel Injector --.

LED should flicker.

Switch the ignition off.

If LED flickers

Replace the faulty fuel Injector. Refer to the appropriate service information.

If LED does not flicker

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the electrical harness connector terminals of the fuel Injector to be tested to the Engine Control Module (ECM) -J623- electrical harness connector T60 terminals for resistance.

Component	Fuel Injector -- electrical harness connector terminals	Engine Control Module (ECM) -J623- electrical connector T60 terminals or test box sockets
Cylinder 1 Fuel Injector -N30	2	31
Cylinder 2 Fuel Injector -N31	2	33
Cylinder 3 Fuel Injector -N32	2	46

Specified value: 1.5 ohms Max.

If the specification is not obtained

Check the wiring for an open circuit, a short circuit to each other, Battery (+), or Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC returns and no malfunction is found in the wiring and voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse order of the removal, note the following

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

FUEL INJECTORS, BANK 2, CHECKING

The following test procedure is used to diagnose fuel injectors Fuel Injectors -N33, N83, N84- controlled by the Engine Control Module (ECM) -J623-.

Special tools and workshop equipment required

multimeter.
Diode test lamp (12V).
Wiring diagram.

Test requirements

The Engine Control Module (ECM) -J623- fuses OK.
The Engine Speed (RPM) Sensor -G28- OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Observe Safety Precautions.

Observe Clean Working Conditions.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Disconnect the 14 pin electrical harness connector -3- for Fuel Injectors -N33, N83, N84- from the left rear of the engine.

Checking internal resistance

Using a multimeter, check harness terminals of connector -3- for resistance.

Injector	6- pin electrical harness connector terminals
Injector N33	5 to 6
Injector N83	7 to 8
Injector N84	9 to 10

Specified value: 12.0 to 20.0 ohms (at approx. 20° C)

If the specified value was not obtained

Replace the faulty Fuel Injector --.Refer to the appropriate service information.

If the specified value was obtained

Checking activation

Connect a diode test lamp (12V) to the Fuel Injector -- electrical harness connector terminals 1 and 2 of the Fuel Injector -- to be tested.

Operate the starter and test the activation of the Fuel Injector --.

LED should flicker.

Switch the ignition off.

If LED flickers

Replace the faulty fuel Injector.

If LED does not flicker

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the electrical harness connector terminals of the fuel Injector to be tested to the Engine Control Module -J623- electrical harness connector T60 terminals for resistance.

Component	Fuel Injector -- electrical harness connector terminals	Engine Control Module (ECM) -J623- electrical connector T60 terminals or test box sockets
Cylinder 4 Fuel Injector -N33	2	34
Cylinder 5 Fuel Injector -N83	2	47
Cylinder 6 Fuel Injector -N84	2	32

Specified value: 1.5 ohms Max.

If the specification is not obtained

Check the wiring for an open circuit, a short circuit to each other, Battery (+), or Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC returns and no malfunction is found in the wiring and voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse order of the removal, note the following

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

FUEL METERING VALVE, CHECKING

The following procedure is used to diagnose the Fuel Metering Valve -N290- which is controlled byEngine Control Module -J623-.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Engine Component Power Supply Relay -J757- OK.
The Fuse -SB5- OK.
The fuel filter OK.
The parking brake engaged.
The battery voltage at least 12.5 V.
The selector lever of automatic transmission in position "P" or "N".
All electrical consumers switched off.
A/C switched off.
The fuel tank at least 1 / 4 filled.
The ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Remove three screws -arrows- and the engine lifting eye to gain access to the electrical harness connector.

Scheme 147

Disconnect the Fuel Metering Valve -N290- electrical harness connector -2-.

Scheme 148

Checking internal resistance

Using a multimeter, check the Fuel Metering Valve -N290- terminals 1 to 2 for resistance

Scheme 149

Specified value: 450 to 1000 ohms.

If the specified value was not obtained

Replace the Fuel Metering Valve -N290-. Refer to the appropriate service information

If the specified value was obtained

Checking voltage

Crank the engine.

Using a multimeter, check the Fuel Metering Valve -N290- electrical harness connector terminal 1 to Ground (GND) for voltage.

Specified value: battery voltage.

Switch the ignition off.

If the specified value was not obtained

Check the wiring from the Fuel Metering Valve -N290- electrical harness connector terminal 1 to the Engine Component Power Supply Relay -J757- socket 8 for an open circuit or a short circuit to Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking wiring connections

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, check the Fuel Metering Valve -N290- electrical harness connector terminal 2 to the Engine Control Module (ECM) -J623- electrical harness connector T60 terminal 60 for resistance.

Fuel Metering Valve -N290- electrical harness connector terminal	Engine Control Module (ECM) -J623- electrical connector T60 terminal or test box socket
2	60

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for an open circuit, a short circuit to each other, Battery (+) or Ground (GND).

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Repair complete, Generate readiness code. Refer to READINESS CODE .

End diagnosis.

If the DTC returns and no malfunction is found in the wiring and voltage supply was OK

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Assembly is performed in the reverse order of the removal, note the following

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

FUEL PUMP RELAY, CHECKING

Special tools and workshop equipment required

Multimeter.
wiring diagrams.

Test requirements

Fuse -S163- OK.
Load Reduction Relay -J59- OK.
The Engine Control Module (ECM) - J623- Fuse -S229- and Fuse -S10- OK.
The Ground (GND) connections at the engine and transmission OK.
The battery voltage at least 12.5 V.
The generator OK.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Using a Multimeter, check the following wiring connection for voltage.

Fuel Pump (FP) Relay -J17- socket	Measure to
1/30	Engine Ground (GND)

Specified value: 12.5 V

If the specified value was not obtained

Check the Fuel Pump (FP) Relay -J17- socket 1/30 to the Battery for an open circuit or short to Ground (GND).

Check the electrical harness connectors for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Using a Multimeter, check the following wiring connection for voltage.

Fuel Pump (FP) Relay -J17	Measure to
3/86	Engine Ground (GND)

Crank the engine.

Specified value: 12.5 V

Switch the ignition off.

If the specified value was not obtained

Check the Fuel Pump (FP) Relay -J17- socket 3/86 to the fuse SC 2 for an open circuit or short to Ground (GND).

Check the electrical harness connectors for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking Ground (GND)

If the manufacturers test box is being used. Perform the following step.

Install the test box.

If the manufacturers test box is not being used. Perform the following step.

Remove wiper arms and plenum chamber cover. Refer to the appropriate service information.

Disconnect the Engine Control Module (ECM) -J623- electrical harness connector T121. Refer to the appropriate service information.

Using a Multimeter --, check the following wiring connection for resistance.

Fuel Pump (FP) Relay -J17- socket	Motronic Engine Control Module (ECM) -J623- electrical harness connector T121 or test box socket
4/85	65

Specified value: 1.5 ohms.

If the specified value was not obtained

Check the Fuel Pump (FP) Relay -J17- socket 4/85 to theMotronic Engine Control Module (ECM) -J623- electrical harness connector T121 terminal 65 for an open circuit or a short to Battery (+).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring and the voltage supply was OK

Replace the Fuel Pump (FP) Relay -J17-.

Perform a road test to verify repair.

If the fault does not return

Generate readiness code. Refer to READINESS CODE .

End of diagnosis.

If the fault does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse of the removal.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

FUEL PUMP DELIVERY QUANTITY, CHECKING

Special tools and workshop equipment required

Switched remote control (jumper).
multimeter.
Electrical connector test lead set.
Fuel pressure test set.
Measuring container, fuel-resistant.

Test conditions

Battery voltage 12.5 V
Fuel filter OK
Fuel tank at least 1 / 4 filled.
Fuel pressure regulator OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the fuel filler cap from fuel filler tube.

Remove rear seat bench. Refer to appropriate service information.

Remove the floor sealing cover -1-.

Scheme 150

Disconnect the electrical harness connector -arrow- from the fuel delivery unit.

Scheme 151

Connect a switched remote control (jumper) to terminal -1- of the fuel delivery unit and to vehicle battery (+).

Connect a jumper wire from terminal -5- of the fuel delivery unit to vehicle Ground (GND).

Scheme 152

WARNING

Fuel system is under pressure! Before opening the system, place rags around the connection area. Then release the pressure by carefully loosening the connection.

Disconnect the fuel return line -arrow- by pressing release buttons.

Scheme 153

Connect a fuel line from the fuel pressure test set to the disconnected fuel return line and hold it in the measuring container.

Scheme 154

Press the switch on the remote control (jumper) and operate the fuel pump for 15 seconds.

Compare quantity of fuel delivered with minimum delivery rate in the diagram (cm 3 /30 sec.).

Scheme 155

Note. Voltage at the fuel pump with engine stopped and fuel pump running is approx. 2 volts less than battery voltage.

If minimum delivery quantity is not obtained, the following malfunctions may be present

Fuel lines pinched.
Fuel filter plugged.
Fuel pump faulty.

If necessary, repair any pinched or plugged lines.

If the filter is restricted

Replace the fuel filter. Refer to appropriate service information.

If the fuel pump is faulty

Replace the fuel pump. Refer to appropriate service information.

Assembly is performed in reverse order of removal. Note the following

Install the rear seat bench. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

FUEL PRESSURE TEST

Special tools and workshop equipment required

multimeter.
fuel line adapter set V.A.G. 1318/17A. These tools may be substituted with an equivalent aftermarket tool and are also available for rental or purchase through Audi.
In- line fuel pressure gauge with shutoff valve. (high pressure).

Test conditions

Battery voltage 12.5 V
Function and voltage supply for the Fuel Pump is OK.
Fuel tank at least 1 / 4 filled.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

WARNING

Fuel system is under pressure! Before opening the system, place rags around the connection area. Then release the pressure by carefully loosening the connection.

Start diagnosis

Disconnect fuel supply line -3- at the supply location and catch any fuel coming out with a shop towel

Scheme 156

Note. Pull circlip upward to unlock fuel line

Install a fuel pressure gauge with appropriate adapters.

Open shut off valve on fuel gauge.

Switch ignition on and off repeatedly until fuel pressure stops increasing pressure.

Read fuel pressure on the gauge.

Specified value: 3.5 to 6 bar

If specification is exceeded

Check return line between fuel filter and fuel pump for kinks or blockage.

If no malfunction in fuel return line is found

Pressure relief valve in fuel filter is malfunctioning.

Replace the fuel filter. Refer to appropriate service information.

If reading was below the specification

Check fuel pressure at the fuel filter between fuel pump and fuel filter using appropriate adapters

Open shut off valve on gauge and start the engine. Allow to idle.

Slowly close the pressure gauge shut off and note the fuel pressure.

Pressure must increase to 6 bar.

When 6 bar is reached: Open shut off tap immediately!

If pressure has increased during test

Fuel pump is OK. Pressure relief valve in fuel filter is malfunctioning.

Replace the fuel filter. Refer to appropriate service information.

If pressure did not increase

Fuel pump is faulty

Replace the fuel pump. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

FUEL PRESSURE SENSOR, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

multimeter
Wiring diagram.

Test requirements

The Fuel Pump (FP) Control Module -J538- OK.
The Motronic Engine Control Module (ECM) - J623- fuses OK.
The fuel filter OK.
The battery voltage at least 12.5 V.
All electrical consumers switched off (radiator fan must NOT run during test).
A/C switched off.
The fuel tank at least 1 / 4 filled.
The ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Checking voltage

Disconnect the Fuel Pressure Sensor -G247- electrical harness connector. -4

Scheme 157

Switch the ignition on.

Using a multimeter, check the Fuel Pressure Sensor -G247- electrical harness connector terminals for voltage.

Fuel Pressure Sensor -G247- electrical harness connector terminals	Specified value
1 to Battery positive (+)	Battery voltage
3 to Ground (GND)	About 5 V

Switch the ignition off.

If the specified value was obtained

Replace the Fuel Pressure Sensor -G247-. Refer to appropriate service information.

If the specified value was not obtained

Checking wiring connections

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, check the Fuel Pressure Sensor -G247- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminals for an open circuit according to the wiring diagram.

Fuel Pressure Sensor -G247- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector T60 terminals or test box socket
1	50
2	59
3	35

Specified value: 1.5 ohms Max.

If the specification is not obtained

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

LOW FUEL PRESSURE SENSOR, CHECKING

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Fuel Pump (FP) Control Module -J538- OK.
The Engine Control Module (ECM) - J623- fuses OK.
The fuel filter OK.
The battery voltage at least 12.5 V.
All electrical consumers switched off.
A/C switched off.
The fuel tank at least 1 / 4 filled.
The ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Disconnect the Low Fuel Pressure Sensor -G410- electrical harness connector -1-.

Checking voltage

Switch the ignition on.

Using a multimeter, check the Low Fuel Pressure Sensor -G410- electrical harness connector for voltage.

Scheme 158

Low Fuel Pressure Sensor -G410- electrical harness connector terminals	Specified value
1 to Battery positive (+)	Battery voltage (+)
2 to Ground (GND)	About 5 V
3 to Ground (GND)	About 5 V

Switch the ignition off.

If the specified values are obtained

Replace the Low Fuel Pressure Sensor -G410-.

If the specified values are not obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, check the Low Fuel Pressure Sensor -G410- electrical harness connector terminals to the Engine Control Module (ECM) -J623- electrical harness connector T60 terminals for resistance.

Low Fuel Pressure Sensor -G410- electrical harness connector terminals	Engine Control Module (ECM) -J623- electrical connector T60 terminals or test box socket
1	50
2	44
3	35

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring for an open circuit, a short circuit to each other, Battery (+), or Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and the voltage supply was not OK

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC returns and no malfunction is found in the wiring and voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse order of the removal, note the following

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

FUEL PUMP ELECTRICAL, TESTING

Special tools and workshop equipment required

multimeter.
Electrical connector test lead set.

Test conditions

Scheme 159

Battery voltage 12.5 V.
Fuse -27- in Fuse Panel C is OK.
Fuel filter OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove rear seat bench. Refer to appropriate service information.

Remove the Fuel Pump Control Module from the retaining clips on the floor sealing cover.

Disconnect the electrical harness connector -arrow- from the Fuel Pump Control Module.

Scheme 160

Connect the multimeter ground lead to terminal -6- of the Fuel Pump Control Module harness connector.

Connect the multimeter positive lead to terminal -1- of the Fuel Pump Control Module harness connector.

Scheme 161

Turn the Ignition key to the ON position.

The meter should read within 1volt of battery voltage.

If voltage is below specification, locate wiring fault in ground or power circuit. Refer to wiring diagram for location.

If voltage is OK, connect multimeter positive lead to terminal -3- of the Fuel Pump Control Module harness connector. The ground lead remains on terminal -6

Crank the engine and note voltage displayed on multimeter during crank. Voltage should be within 2.5 volts of battery voltage.

If voltage is below specification, locate wiring fault in the power circuit. Refer to wiring diagram for location.

If voltage is OK, connect multimeter positive lead to terminal -2- of the Fuel Pump Control Module harness connector. The ground lead remains on terminal -6

Crank the engine and note voltage displayed on multimeter during crank. Voltage should be 3.2 volts (+/-.4)

If voltage is below specification, check circuit from Fuel Pump Control Module to ECM for open, short or high resistance and repair as necessary. If no circuit fault is found, replace ECM.

If voltage is OK, reconnect the wiring harness to the Fuel Pump control Module.

Test procedure for Fuel Pump Control Module

Remove the floor sealing cover to access the Fuel Delivery Unit (fuel pump).

Disconnect the harness connector from the Fuel Delivery Unit.

Connect the multimeter positive lead to terminal -1- of the Fuel Delivery Unit harness connector.

Connect the multimeter ground lead to terminal -5- of the Fuel Delivery Unit harness connector.

Crank the engine and note voltage displayed on multimeter during crank. Voltage should be within 2.5 volts of battery voltage.

If voltage is below specification, replace the Fuel Pump Control Module.

If voltage is within specification, replace the Fuel Delivery Unit (Fuel Pump). Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

TRANSFER FUEL PUMP, CHECKING

Note. Models with an airbag are installed with a crash fuel shut-off system. It reduces the danger of a fire in a crash as the fuel pump is switched off via the fuel pump relay. When the door is opened the fuel pump is activated for 2 seconds to build up the pressure in the fuel system.

Special tools and workshop equipment required

Hand held remote control (jumper).
Multimeter.
Electrical connector test lead set.

Test conditions

Battery voltage at least 12.5 volts..
OK.
Fuel filter OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Test sequence

Remove the rear seat bench. Refer to the appropriate service information.

Remove cover retainers from the right sealing flange.

Disconnect the electrical harness connector from theTransfer Fuel Pump (FP) -G6- fuel delivery unit.

Connect a hand-held remote control (jumper) to terminal 5 of the fuel delivery unit and to vehicle battery (+).

Connect a jumper cable from an Electrical connector test lead set to terminal 1 of the fuel delivery unit and to vehicle Ground (GND).

Press switch on the hand-held remote control (jumper).

Note. The Fuel Pump (FP) runs quietly. Avoid surrounding noises while testing the fuel pump.

Listen for an operating noise from the fuel pump.

If no operating noise is heard

Remove the fuel delivery unit.

Using a multimeter, check the electrical circuit between terminals 1 to and 5 of the fuel delivery unit pump motor for resistance.

Scheme 162

Specified value: 1.5 ohms max.

If the specification was not obtained

Check the wiring for an open circuit, a short circuit to Battery positive (+) or to Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If the specification was obtained

Replace the fuel delivery unit.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

FUEL PUMP 2 RELAY, CHECKING

Special tools and workshop equipment required

Multimeter
Wiring diagram.

Test requirements

Fuse -SB7- OK.
Fuse -SC27- OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, selector lever in position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Start diagnosis

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Test procedure

Using a Multimeter, check the following wiring connection for voltage.

Fuel Pump (FP) 2 Relay -J49- socket	Measure to
5	Engine Ground (GND)

Specified value: 12.5 V

If the specified value was not obtained

Check the Fuel Pump (FP) 2 Relay -J49- socket 3 to the Generator (GEN) -C- B (+) terminal for an open circuit or short to Ground (GND).

Check the electrical harness connectors for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking voltage

Switch the ignition on.

Using a Multimeter --, check the following wiring connection for voltage.

Fuel Pump (FP) 2 Relay -J49- socket	Measure to
2	Engine Ground (GND)

Specified value: 12.5. battery voltage.

Switch the ignition off.

If the specified value was not obtained

Check the Fuel Pump (FP) 2 Relay -J49- socket 2 for an open circuit or short to Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking Ground (GND)

Using a Multimeter --, check the Fuel Pump (FP) 2 Relay -J49- socket 2 to the Vehicle Electrical System Control Module -J519- electrical harness connector T111 terminal 10 for resistance.

Specified value: 1.5 ohms.

If the specified value was not obtained

Check the Fuel Pump (FP) 2 Relay -J49- socket 2 to theVehicle Electrical System Control Module -J519- electrical harness connector T111 terminal 10 for an open circuit or a short to Battery (+).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring and the voltage supply was OK

Replace theFuel Pump (FP) 2 Relay -J49-. Refer to the appropriate service information.

Perform a road test to verify repair.

If the fault does not return

Generate readiness code. Refer to READINESS CODE .

End diagnosis.

If the fault does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse of the removal.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

IGNITION COIL WITH POWER OUTPUT STAGE, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

multimeter.
Diode test lamp.
Wiring diagram.

Test requirements

The Ignition Coils with Power Output Stage - N70, N127, N291, N292, N323, N324- fuses OK.
The Engine Component Power Supply Relay -J757- OK.
The Engine Speed (RPM) Sensor -G28- OK.
The Camshaft Position (CMP) Sensor -G40- OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Remove the Ignition Coils with Power Output Stage - N70, N127, N291, N292, N323, N324- electrical harness screws -1-.

Scheme 163

Disconnect theIgnition Coils with Power Output Stage - N70, N127, N291, N292, N323, N324- electrical harness connectors -arrows- from the Ignition Coils with Power Output Stage - N70, N127, N291, N292, N323, N324-.

Scheme 164

Checking voltage supply

Switch the ignition on.

Using a multimeter, check the Ignition Coil -- electrical harness connector terminals 1 to 2 for voltage.

Scheme 165

Specified value: battery voltage.

Switch the ignition off.

If the specified value was not obtained

Check the Ignition Coil -- electrical harness connector terminal 1 to the Engine Component Power Supply Relay -J757- terminal 4 for an open circuit.

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring connection for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specified values were obtained

Checking activation

WARNING

Do not touch the Ignition Coils -- connecting parts or adapter cables during the following test.

Disable the power supply to theFuel Injectors -N30, N31, N32, N33, N83, N84- by removing Fuse 29 (on fuse panel B) from the fuse holder SB29, in the E-box, plenum chamber.

Using a diode test lamp, check the Ignition Coil -- electrical harness connector terminals 3 to 4 for voltage.

Operate the starter.

The LED should flicker.

Switch the ignition off.

If the LED flickers and the voltage was OK

Replace the faulty Ignition Coils with Power Output Stage - N70, N127, N291, N292, N323, N324-. Refer to appropriate service information.

If the LED does not flicker

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Ignition Coil -- electrical harness connector to the Motronic Engine Control Module (ECM) J623 electrical harness connector T60 for an open circuit.

Ignition Coils with Power Output Stage - N70, N127, N291, N292, N323, N324- electrical harness connector terminal	Motronic Engine Control Module (ECM) electrical harness connector T60 terminal or test box socket
N70-3	21
N127-3	23
N291-3	8
N292-3	6
N323-3	22
N324-3	7

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring connection for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specified values were obtained

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Connect theIgnition Coils with Power Output Stage - N70, N127, N291, N292, N323, N324- electrical harness connectors -arrows- to the Ignition Coils with Power Output Stage - N70, N127, N291, N292, N323, N324-.

Scheme 166

Install the Ignition Coils with Power Output Stage - N70, N127, N291, N292, N323, N324- electrical harness screws -1-.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

MANIFOLD ABSOLUTE PRESSURE SENSOR AND INTAKE AIR TEMPERATURE SENSOR, CHECKING

The following procedure is used to diagnose the Manifold Absolute Pressure (MAP) Sensor -G71- and Intake Air Temperature (IAT) Sensor -G42- which is controlled by Engine Control Module -J623-.

Note. The Intake Air Temperature (IAT) Sensor -G42- is part of the Manifold Absolute Pressure (MAP) Sensor -G71- and cannot be replaced separately Use only gold-plated terminals when servicing terminals in harness connector of Manifold Absolute Pressure (MAP) Sensor -G71- /Intake Air Temperature (IAT) Sensor -G42-.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Engine Control Module (ECM) -J623- fuse OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Coolant Temperature at least 80° C.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Connect the scan tool.

Start engine and let it run at idle.

Using the scan tool, Check the temperature of the Manifold Absolute Pressure (MAP) Sensor -G71- and Intake Air Temperature (IAT) Sensor -G42- at idle

Diagnostic text		Specified value
Intake air temperature sensor
Engine running at idle		Approx. ambient temperature

End diagnosis and switch ignition off.

If the specified value was obtained, but the DTC memory has a DTC indicating a Manifold Absolute Pressure (MAP) Sensor -G71- /Intake Air Temperature (IAT) Sensor -G42- fault

Check the voltage supply of the Manifold Absolute Pressure (MAP) Sensor -G71- /Intake Air Temperature (IAT) Sensor -G42- CHECKING VOLTAGE SUPPLY .

If specified value was not obtained

Check the wiring of the Manifold Absolute Pressure (MAP) Sensor -G71- /Intake Air Temperature (IAT) Sensor -G42- CHECKING ELECTRICAL CIRCUIT .

Checking Voltage Supply

Remove the engine cover -arrows-. Refer to appropriate service information.

Disconnect the Manifold Absolute Pressure (MAP) Sensor -G71- and Intake Air Temperature (IAT) Sensor -G42- electrical harness connector -1-.

Scheme 167

Crank the engine.

Using a multimeter, check the Manifold Absolute Pressure (MAP) Sensor -G71- /Intake Air Temperature (IAT) Sensor -G42- electrical harness connector terminal 3 to engine Ground (GND) for voltage.

Specified value: approx 5 V.

Switch the ignition off.

If specified value was not obtained

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If no malfunction is detected in the wiring and the voltage supply was OK

Checking Electrical Circuit

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module -J623-. Refer to appropriate service information.

Using a multimeter, check the Manifold Absolute Pressure (MAP) Sensor -G71- /Intake Air Temperature (IAT) Sensor -G42- electrical harness connector terminals to the Engine Control Module -J623- electrical harness connector T60 terminals for resistance.

Manifold Absolute Pressure (MAP) Sensor -G71- /Intake Air Temperature (IAT) Sensor -G42- electrical harness connector terminals	Engine Control Module -J623- electrical connector T60 terminals or test box socket
1	50
2	41
3	35
4	37

Specified value: 1.5 ohms max.

If any of the specified values were not obtained

Check the wiring for an open circuit, a short circuit to each other, Battery (+), or Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring and if the voltage supply was OK

Replace the Manifold Absolute Pressure (MAP) Sensor -G71- /Intake Air Temperature (IAT) Sensor -G42-.

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Repair complete, Generate readiness code. Refer to READINESS CODE .

End diagnosis.

If the DTC returns and no malfunction is found in the wiring and voltage supply was OK

Replace the Engine Control Module -J623-. refer to the appropriate service information for removal and installation procedures.

Assembly is performed in the reverse order of the removal, note the following

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

INTAKE MANIFOLD TUNING VALVE, CHECKING

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

Fuse -SB5- OK.
The Engine Component Power Supply Relay -J757- OK.
The parking brake engaged.
The battery voltage at least 12.5 V.
The selector lever of automatic transmission in position "P" or "N".
All electrical consumers switched off (radiator fan must NOT run during test).
A/C switched off.
The fuel tank at least 1 / 4 filled.
The ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Disconnect the Intake Manifold Tuning (IMT) Valve -N156- electrical harness connector -1-.

Scheme 168

Checking internal resistance

Using a multimeter, check the Intake Manifold Tuning (IMT) Valve -N156- terminals 1 to 2 for resistance.

Scheme 169

Specified value: 450 to 1000 ohms.

If the specified value was not obtained

Replace the Intake Manifold Tuning (IMT) Valve -N156-.

If the specified value was obtained

Checking voltage

Crank the engine.

Using a multimeter, check the Intake Manifold Tuning (IMT) Valve -N156- electrical harness connector terminal 1 to ground (GND) for voltage.

Specified value: battery voltage.

Switch the ignition off.

If the specified value was not obtained

Check the wiring from the Intake Manifold Tuning (IMT) Valve -N156- electrical harness connector terminal 1 to the Engine Component Power Supply Relay -J757- socket 8 for a short circuit to Ground (GND), or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Intake Manifold Tuning (IMT) Valve -N156- electrical harness connector terminal 2 to the Engine Control Module (ECM) -J623- electrical harness connector terminal T 60 for resistance.

Intake Manifold Tuning (IMT) Valve -N156- electrical harness connector terminal	Engine Control Module (ECM) -J623- electrical harness connector terminal or test box socket
2	52

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse of the removal.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

INTAKE MANIFOLD TUNING VALVE POSITION SENSOR, CHECKING

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

Fuse -SB51- OK.
The Secondary Air Injection (AIR) Pump Relay -J299- OK.
The parking brake engaged.
The battery voltage at least 12.5 V.
The selector lever of automatic transmission in position "P" or "N".
All electrical consumers switched off (radiator fan must NOT run during test).
A/C switched off.
The fuel tank at least 1 / 4 filled.
The ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Disconnect the Intake Manifold Tuning (IMT) Valve Position Sensor -G513- electrical harness connector -3-.

Scheme 170

Checking internal resistance

Using a multimeter, check the Intake Manifold Tuning (IMT) Valve Position Sensor -G513- terminals 1 to 2 for resistance.

Specified value: 450 to 1000 ohms.

If the specified value was not obtained

Replace the Intake Manifold Tuning (IMT) Valve Position Sensor -G513-.

If the specified value was obtained

Checking voltage

Crank the engine.

Using a multimeter, check the Intake Manifold Tuning (IMT) Valve Position Sensor -G513- electrical harness connector terminal 1 to ground (GND) for voltage.

Specified value: approx. 5 V

Switch the ignition off.

If the specified value was not obtained

Check the wiring from the Intake Manifold Tuning (IMT) Valve Position Sensor -G513- electrical harness connector terminal 1 to the Secondary Air Injection (AIR) Pump Relay -J299- socket 4 for a short circuit to Ground (GND), or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Intake Manifold Tuning (IMT) Valve Position Sensor -G513- electrical harness connector terminals to the Engine Control Module (ECM) -J623- electrical harness connector terminal T94 for resistance.

Intake Manifold Tuning (IMT) Valve Position Sensor -G513- electrical harness connector terminal	Engine Control Module (ECM) -J623- electrical harness connector T94 terminal or test box socket
1	63
2	53
3	39

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse of the removal.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

KNOCK SENSOR 1, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter.
Wiring diagram.

Test requirements

The mounting bolt of Knock Sensor (KS) 1 -G61- tightened to 20 Nm.
The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Note. Before disconnecting the Knock Sensor -- electrical harness connectors, mark the component location.

Disconnect the Knock Sensor (KS) 1 -G61- electrical harness connector -1-.

Scheme 171

Checking internal resistance

Using a multimeter, check the Knock Sensor -- terminals 1 to 2 for an internal short.

Specified value: infinity (Infinity).

If the specified value was not obtained

Replace the faulty Knock Sensor (KS) 1 -G61-. Refer to appropriate service information.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Knock Sensor -- electrical harness connector to the Motronic Engine Control Module (ECM) J623 electrical harness connector T60 for an open circuit.

Knock Sensor (KS) 1 -G61- electrical harness connector terminals	Motronic Engine Control Module (ECM) electrical harness connector T60 terminals or test box sockets
1	58
2	57
3	42

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring connection for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and the resistance was not OK

Replace the faulty Knock Sensor (KS) 1 -G61-. Refer to appropriate service information.

If no malfunction is found in the wiring and the resistance was OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

KNOCK SENSOR 2, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter.
Wiring diagram.

Test requirements

The mounting bolt of Knock Sensor (KS) 2 -G66- tightened to 20 Nm.
The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the engine cover with air filter. Refer to appropriate service information.

Note. Before disconnecting the Knock Sensor -- electrical harness connectors, mark the component location.

Disconnect the Knock Sensor (KS) 2 -G66- electrical harness connector -2-.

Checking internal resistance

Using a multimeter, check the Knock Sensor (KS) 2 -G66- terminals 1 to 2 for an internal short.

Specified value: infinity (Infinity).

If the specified value was not obtained

Replace the faulty Knock Sensor (KS) 2 -G66-. Refer to appropriate service information.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, Check the Knock Sensor (KS) 2 -G66- electrical harness connector to the Motronic Engine Control Module (ECM) J623 electrical harness connector T60 for an open circuit.

Knock Sensor (KS) 2 -G66- electrical harness connector terminals	Motronic Engine Control Module (ECM) electrical harness connector T60 terminals or test box sockets
1	56
2	57
3	42

Specified value: 1.5 ohms Max.

If the specified value was not obtained

Check the wiring connection for an open circuit.

Check the wiring connection for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and the resistance was not OK

Replace the faulty Knock Sensor (KS) 2 -G66-. Refer to appropriate service information.

If no malfunction is found in the wiring and the resistance was OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Install the engine cover with air filter. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

SECONDARY AIR INJECTION SOLENOID VALVE, CHECKING

SECONDARY AIR INJECTION SOLENOID VALVE 2, CHECKING

Principle

Due to the rich mixture during the cold start phase, the exhaust emissions contain an increased level of unburned hydrocarbons. The Secondary Air Injection (AIR) system improves the secondary oxidation within the catalytic converter, thereby reducing harmful emissions. The heat released by secondary oxidation shortens the startup time of the catalytic converter considerably, as well as significantly improves emissions quality during the cold-running phase.

Function

During cold start (with coolant temperatures +15 to +35 °C), the Secondary Air Injection (AIR) system blows air behind the exhaust valve for approx. 65 seconds. This produces an oxygen rich exhaust gas, causes the after burning and reduces the heating-up phase of the catalytic converter.
In addition, the Secondary Air Injection (AIR) system is switched on with a delay of approx. 20 seconds during idle for 5 seconds after every subsequent engine start up to max. 80 °C coolant temperature and is checked by On Board Diagnostic (OBD).

COMBINATION VALVE FOR SECONDARY AIR INJECTION, CHECKING FUNCTION AND FOR LEAKS

The following procedure is used to test all combination valves.

Special tools and workshop equipment required

hand vacuum pump

Test conditions

Vacuum lines and hose connections free of leaks.
Vacuum lines not plugged.

Test sequence

Remove the vacuum hose from the combination valve.

Connect the hand vacuum pump to combination valve vacuum connection.

Scheme 172

Disconnect the Secondary Air Injection hose -arrow-.

Scheme 173

Inject a light air pressure into the in Secondary Air Injection hose to close the combination valve. (do not use compressed air).

The combination valve should close and seal. Air should not be able to pass through the combination valve.

Operate the hand vacuum pump.

The combination valve should open. Air should be able to pass through the combination valve.

If combination valve does not open

Replace the faulty combination valve. Refer to appropriate service information.

End of procedure.

SECONDARY AIR INJECTION SOLENOID VALVE, CHECKING

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Secondary Air Injection (AIR) Solenoid Valve --N112-- fuse OK.
The Motronic Engine Control Module (ECM) Power Supply Relay -J271- fuse OK.
Battery voltage at least 12.5 V.
All electrical consumers switched off (radiator fan must NOT run during test).
A/C switched off.
The ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Note. Voltage is supplied to the Secondary Air Injection (AIR) Solenoid Valve -N112- from the Secondary Air Injection (AIR) Pump Relay -J299-.

Procedure

Disconnect the Secondary Air Injection (AIR) Solenoid Valve -N112- electrical harness connector -2-.

Scheme 174

Checking internal resistance

Using a multimeter, check the Secondary Air Injection (AIR) Solenoid Valve -N112- terminals 1 to 2 for resistance.

Specified value: 25 to 35 ohms (at approx. 20 °C)

If the specified value was not obtained

Replace the Secondary Air Injection (AIR) Solenoid Valve -N112- : Refer to appropriate service information.

If the specified value was obtained

Checking voltage supply

Switch the ignition on.

Using a multimeter, check the Secondary Air Injection (AIR) Solenoid Valve -N112- electrical connector terminal 1 to Ground (GND) for voltage.

Specified value: battery voltage.

Switch the ignition off.

If the specified value was not obtained

Check the wiring from the Secondary Air Injection (AIR) Solenoid Valve -N112- electrical connector terminal 1 to the Secondary Air Injection (AIR) Pump Relay -J299- terminal 4 for an open circuit.

Check the electrical harness connector for damage, corrosion, lose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking wiring

If the manufacturers test box is being used. Perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Secondary Air Injection (AIR) Solenoid Valve -N112- electrical harness connector terminal 2 to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminal 17 for an open circuit.

Secondary Air Injection (AIR) Solenoid Valve -N112- electrical harness connector terminal	Motronic Engine Control Module (ECM) -J623- electrical connector T60 terminal or test box socket
2	17

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

Check the electrical harness connector for damage, corrosion, lose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

SECONDARY AIR INJECTION SOLENOID VALVE 2, CHECKING

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Secondary Air Injection (AIR) Solenoid Valve 2 --N320-- fuse OK.
The Motronic Engine Control Module (ECM) Power Supply Relay -J271- fuse OK.
Battery voltage at least 12.5 V.
All electrical consumers switched off (radiator fan must NOT run during test).
A/C switched off.
The ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Note. Voltage is supplied to the Secondary Air Injection (AIR) Solenoid Valve 2 -N320- from the Secondary Air Injection (AIR) Pump Relay -J299-.

Procedure

Disconnect the Secondary Air Injection (AIR) Solenoid Valve 2 -N320- electrical harness connector -5-.

Checking internal resistance

Using a multimeter, check the Secondary Air Injection (AIR) Solenoid Valve 2 -N320- terminals 1 to 2 for resistance.

Specified value: 25 to 35 ohms (at approx. 20 °C)

If the specified value was not obtained

Replace the Secondary Air Injection (AIR) Solenoid Valve 2 -N320- : Refer to appropriate service information.

If the specified value was obtained

Checking voltage supply

Switch the ignition on.

Using a multimeter, check the Secondary Air Injection (AIR) Solenoid Valve 2 -N320- electrical connector terminal 1 to Ground (GND) for voltage.

Specified value: battery voltage.

Switch the ignition off.

If the specified value was not obtained

Check the wiring from the Secondary Air Injection (AIR) Solenoid Valve 2 -N320- electrical connector terminal 1 to the Secondary Air Injection (AIR) Pump Relay -J299- terminal 4 for an open circuit.

Check the electrical harness connector for damage, corrosion, lose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking wiring

If the manufacturers test box is being used. Perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information. Using a multimeter, check the Secondary Air Injection (AIR) Solenoid Valve 2 -N320- electrical harness connector terminal 2 to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminal 9 for an open circuit.

Secondary Air Injection (AIR) Solenoid Valve 2 -N320- electrical harness connector terminal	Motronic Engine Control Module (ECM) -J623- electrical connector T60 terminal or test box socket
2	9

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for an open circuit.

Check the electrical harness connector for damage, corrosion, lose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

SECONDARY AIR INJECTION PUMP MOTOR, CHECKING

Special tools and workshop equipment required

Multimeter.
Wiring diagram.

Test requirements

The Secondary Air Injection (AIR) Pump Relay --J299-- fuses OK.
The Motronic Engine Control Module (ECM) Power Supply Relay -J271- fuse OK.
Battery voltage at least 12.5 V.
All electrical consumers switched off.
A/C switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Note. The engine MUST be cold (room temperature) in order for the ECM to command the air pump relay ON. The pump runs for approximately 20 seconds. Once the engine has been started, the ECM will not command the pump to run again for approx 6 hrs. Due to potential damage to the catalyst, the generic scan tool has no provision for AIR relay driver control.

Disconnect the Secondary Air Injection (AIR) Pump Relay --J299- - in the underhood fuse panel -R2-.

Scheme 175

Checking operation

Using a jumper, connect AIR pump relay terminals 3 to 5

Turn the ignition ON.

The AIR pump should be running.

Turn the ignition OFF.

If the pump does operate when using a jumper at the relay

Connect a test lamp to terminal 5 of the AIR relay.

Turn the ignition ON.

The test lamp should be ON.

Turn the ignition OFF.

If the test lamp did Not turn on, locate the open circuit between the relay and fuse 23 of Fuse Panel B.

If the test lamp did turn ON, remove the Motronic Engine Control Module (ECM) -J623 -. Refer to the appropriate repair information.

Using a multimeter, check the AIR pump relay terminal 2 to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T121 terminal 46 for resistance.

Specified value: 1.5 ohms max.

If the specified value was not obtained, repair the circuit as necessary.

If the specified value was obtained, exchange the AIR relay -R2- with the ECM power supply relay -R1- located next to it.

Attempt to start the engine. If the engine does not start, replace the defective relay.

If the engine did start, replace the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate repair information.

If the pump did Not operate when using a jumper at the relay

Switch the ignition off.

Remove the AIR pump relay.

Connect a test lamp to the AIR relay terminal 3

Turn the Ignition switch ON. The test lamp should turn ON.

If the test lamp does Not turn on, locate the open circuit between the relay and battery positive connection.

If the test lamp does turn ON, disconnect the AIR pump connector -3-.

Scheme 176

Switch the key off.

Using a multimeter, check the AIR pump electrical harness connector, terminal 2 to the AIR relay terminal 5 for resistance.

Specified value: 1.5 ohms max.

If the specified value was Not obtained

Check the wiring connection from the AIR relay terminal 5 to the AIR pump electrical harness connector terminal 2 for an open, short circuit or high resistance. If necessary, repair the faulty wiring or connection.

If the specified value was obtained

Using a multimeter, check the AIR pump electrical harness connector, terminal 1 to ground for resistance.

Specified value: 1.5 ohms max.

If the specified value was Not obtained

Repair the open ground circuit.

If the specified value was obtained

Replace the Secondary Air Injection (AIR) Pump Motor --V101--. Refer to the appropriate repair information.

Specified value: 1.5 ohms Max.

If the specified value was Not obtained

Check the wiring for an open or high resistance.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was OK

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate repair information.

Assembly is performed in the reverse of the removal.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

SECONDARY AIR INJECTION SENSOR, CHECKING

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

Fuse -SB10- OK.
The Motronic Engine Control Module (ECM) Power Supply Relay -J271- OK.
The ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Disconnect the Secondary Air Injection Sensor 1 -G609- electrical harness connector -1-.

Scheme 177

Checking voltage supply

Note. The voltage for the Secondary Air Injection Sensor 1 -G609- is supplied by the Motronic Engine Control Module (ECM) Power Supply Relay -J271- OK.

Using a multimeter, check the Secondary Air Injection Sensor 1 -G609- electrical harness connector terminal 1 for voltage.

Secondary Air Injection Sensor 1 -G609- electrical harness connector terminal	Measure to
1	Engine Ground (GND)

Operate the engine briefly.

Specified value: approx. 5 V.

Switch the ignition off.

If the specified value was not obtained

Using a multimeter, check the Secondary Air Injection Sensor 1 -G609- electrical harness connector terminal 1 to the Motronic Engine Control Module (ECM) -J623- terminal 53 for resistance.

Specified value: 1.5 ohms max

If the specification was not obtained

Check the wiring for a short circuit to Battery positive (+) or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring and if the voltage supply was OK

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, check the Secondary Air Injection Sensor 1 -G609- electrical harness connector terminals to Engine Control Module (ECM) -J623- electrical harness connector T60 terminals.

Secondary Air Injection Sensor 1 -G609- electrical harness connector terminals	Engine Control Module (ECM) -J623- electrical connector T60 terminals or test box sockets
1	35
2	12
3	50

Specified value: 1.5 ohms max.

If the specification is not obtained

Check the wiring for a short circuit to Battery positive (+), or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in wiring

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Assembly is performed in the reverse of the removal.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

SECONDARY AIR INJECTION PUMP RELAY, CHECKING

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

Fuse -S130- OK.
Battery voltage at least 12.5 V.
All electrical consumers switched off.
A/C switched off.
The ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Remove the Secondary Air Injection (AIR) Pump Relay -J299-.

Checking voltage

Using a multimeter, check the Secondary Air Injection (AIR) Pump Relay -J299- socket 2 to Ground (GND).

Specified value: battery voltage.

If the specified value was not obtained

Check the wiring connection from the Secondary Air Injection (AIR) Pump Relay -J299- socket 2 to the Battery -A- (+) terminal for an open circuit or a short circuit to Ground (GND).

Check the wiring connections for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specified value was obtained

Install the Secondary Air Injection (AIR) Pump Relay -J299-.

Switch the ignition on.

Using a multimeter, check the Secondary Air Injection (AIR) Pump Relay -J299- socket 8 to Ground (GND) for voltage.

Specified value: battery voltage.

Switch the ignition off.

If the specified value was not obtained

Check the wiring connection from the Secondary Air Injection (AIR) Pump Fuse -S130- to the Secondary Air Injection (AIR) Pump Relay -J299- socket 2 for an open circuit or a short circuit to Ground (GND).

Check the wiring connections for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, check the Secondary Air Injection (AIR) Pump Relay -J299- socket 6 to the Engine Control Module (ECM) -J623- electrical harness connector T60 terminal 2 for resistance.

Secondary Air Injection (AIR) Pump Relay -J299- socket terminal	Engine Control Module (ECM) -J623- electrical connector T60 terminal or test box socket
6	2

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for an open circuit, a short circuit to each other, Battery (+), and Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and voltage supply was OK

Replace the Secondary Air Injection (AIR) Pump Relay -J299-.

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Repair complete, Generate readiness code. Refer to READINESS CODE .

End diagnosis.

If the DTC returns and no malfunction is found in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Assembly is performed in the reverse of the removal.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

LEAK DETECTION PUMP, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

multimeter
Wiring diagram.

Test requirements

The Leak Detection Pump (LDP) -V144- fuse OK.
The ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the left rear wheel housing liner. Refer to appropriate service information.

Disconnect the Leak Detection Pump (LDP) -V144- electrical harness connector -2-.

Scheme 178

Checking internal resistance

Using a multimeter, check the Leak Detection Pump (LDP) -V144- for resistance as follows

Scheme 179

Leak Detection Pump (LDP) -V144- electrical harness connector terminals	Specified values
1 + 3	640 to 720 ohms
2 + 3	15 to 17 ohms

If any of the specifications are not obtained

Replace the Leak Detection Pump (LDP) --V144--. Refer to appropriate service information.

If the specified values are obtained

Checking voltage supply

Note. The voltage for the Leak Detection Pump (LDP) --V144-- is supplied via Secondary Air Injection (AIR) Pump Relay -J299- socket 4

Check the Leak Detection Pump (LDP) --V144-- for voltage.

Using a multimeter, check the Leak Detection Pump (LDP) --V144-- electrical harness connector terminal 3 for voltage.

Leak Detection Pump (LDP) --V144-- electrical harness connector terminal	Measure to
3	Engine Ground (GND)

Operate the starter briefly.

Specified value: battery voltage.

Switch the ignition off.

If the specified value was not obtained

Using a multimeter, check the Leak Detection Pump (LDP) --V144-- electrical harness connector terminal 3 to the Secondary Air Injection (AIR) Pump Relay -J299- terminal 4 for an open circuit.

Specified value: Wire resistance max 1.5 ohms.

If the specification is not obtained

Check the wiring for a short circuit to Battery positive (+) or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring and if the voltage supply was OK

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, check the Leak Detection Pump (LDP) --V144-- electrical connector terminal 1 to Motronic Engine Control Module (ECM) -J623- electrical connector T94 terminal 9 for an open circuit.

Using a multimeter, check the Leak Detection Pump (LDP) --V144-- electrical connector terminal 2 to Motronic Engine Control Module (ECM) -J623- electrical connector T94 terminal 69 for an open circuit.

Leak Detection Pump (LDP) --V144-- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector T94 terminals or test box socket
1	9
2	69

Specified value: 1.5 ohms max.

If the specification is not obtained

Check the wiring for a short circuit to Battery positive (+) or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Assembly is performed in the reverse order of the removal, note the following

Install the left rear wheel housing liner. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

HEATED OXYGEN SENSOR HO2S, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Note. Use only gold-plated terminals when servicing terminals in the electrical harness connector of the Heated Oxygen Sensor (HO2S) -G39-.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Heated Oxygen Sensor (HO2S) -G39- fuse OK.
The Oxygen Sensor (O2S) Heater -Z19- before catalytic converter OK. Refer to «OXYGEN SENSOR O2S HEATER, CHECKING»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__oxygen-sensor-o2s-heater-checking) .
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Exhaust system between catalytic converter and cylinder head properly sealed.
Coolant Temperature at least 80 °C.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Connect scan tool.

Start the engine and let it run at idle.

Select "Diagnostic mode 6: Check test results of components that are not continuously monitored".

Select "Test-ID 01: Oxygen sensor monitoring before catalytic converter".

Select "Test-ID 131: Dynamic test".

Check the specified values at idle.

Dynamic test	Specified value
	Min.	Max.
Normal operation	0.35009
Reduced threshold upon suspicion of malfunction in catalytic converter	0.39990

If specified values are obtained

End diagnosis and switch the ignition off.

If the specified values are not obtained

Checking primary voltage

Disconnect the Heated Oxygen Sensor (HO2S) -G39- electrical harness connector -1-.

Scheme 180

Using a multimeter, check the Heated Oxygen Sensor (HO2S) -G39- electrical harness connector terminals 1 to 5 for voltage.

Scheme 181

Specified value: 0.400 to 0.500 Volts

Switch the ignition off.

If the specified value was not obtained

Replace the Heated Oxygen Sensor (HO2S) -G39-. Refer to the appropriate service information.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Heated Oxygen Sensor (HO2S) -G39- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T94 terminals for an open circuit.

Heated Oxygen Sensor (HO2S) -G39- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector T94 terminals or test box sockets
1	82
2	61
4	83
6	84

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

HEATED OXYGEN SENSOR HO2S 2, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Note. Use only gold-plated terminals when servicing terminals in the electrical harness connector of the Heated Oxygen Sensor (HO2S) -G108-.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Heated Oxygen Sensor (HO2S) -G108- fuse OK.
The Oxygen Sensor (O2S) Heater -Z28- before catalytic converter OK. Refer to «OXYGEN SENSOR O2S HEATER, CHECKING»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__oxygen-sensor-o2s-heater-checking) .
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Exhaust system between catalytic converter and cylinder head properly sealed.
Coolant Temperature at least 80 °C.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Connect scan tool.

Start the engine and let it run at idle.

Select "Diagnostic mode 6: Check test results of components that are not continuously monitored".

Select "Test-ID 01: Oxygen sensor monitoring before catalytic converter".

Select "Test-ID 131: Dynamic test".

Check the specified values at idle.

Dynamic test	Specified value
	Min.	Max.
Normal operation	0.35009
Reduced threshold upon suspicion of malfunction in catalytic converter	0.39990

If specified values are obtained

End diagnosis and switch the ignition off.

If the specified values are not obtained

Checking primary voltage

Disconnect the Heated Oxygen Sensor (HO2S) -G108- electrical harness connector -2-.

Using a multimeter, check the Heated Oxygen Sensor (HO2S) -G108- electrical harness connector terminals 1 to 5 for voltage.

Specified value: 0.400 to 0.500 Volts

Switch the ignition off.

If the specified value was not obtained

Replace the Heated Oxygen Sensor (HO2S) -G108-. Refer to the appropriate service information.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Heated Oxygen Sensor (HO2S) -G108- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T121 terminals for an open circuit.

Heated Oxygen Sensor (HO2S) -G108- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector TT94 terminals or test box sockets
1	81
2	59
4	60
6	62

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

OXYGEN SENSOR O2S BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Note. Vehicle must be raised before the electrical connector for the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- is accessible. When servicing terminals 3 and 4 in the electrical harness connector of the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-, use only gold-plated terminals.

Special tools and workshop equipment required

Generic scan tool
multimeter.
Wiring diagram.

Test requirements

The Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- fuse Ok.
Oxygen Sensor O2S Behind Three Way Catalytic Converter Heater - Z29- OK. Refer to «OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__oxygen-sensor-o2s-1-heater-behind) .
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, selector lever in position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Exhaust system between catalytic converter and cylinder head properly sealed.
Coolant Temperature at least 80 °C.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Connect scan tool.

Start the engine and let it run at idle.

Select "Diagnostic mode 6: Check test results of components that are not continuously monitored".

Select "Test-ID 02: Oxygen sensor monitoring behind catalytic converter".

Select following Test-IDs.

Check the specified values at idle.

Test-ID		Specified value
		Min.	Max.
1	Rich to lean sensor barrier voltage		0.6241 V
2	Lean to rich sensor barrier voltage		0.6241 V
7	Minimum voltage at sensor for test cycle		0.450 V
8	Maximum voltage at sensor for test cycle	0.450 V
129	Sensor voltage lean	0	0.6241 V
130	Sensor voltage rich	0.6241 V	1.2998 V
131	Deceleration test	0 V	0.1599 V

If the specified values are obtained

End diagnosis and switch ignition off.

If the specified values are not obtained

Remove the right vehicle floor cover -arrows-. Refer to the appropriate service information.

Scheme 182

Checking primary voltage

Disconnect the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- electrical harness connector -1-.

Scheme 183

Switch the ignition on.

Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- electrical harness connector terminals 3 to 4 for voltage.

Scheme 184

Specified value: 0.400 to 0.500 Volts

Switch the ignition off.

If the specified value was not obtained

Replace the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) - G130-. Refer to the appropriate service information.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) - G130- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T94 terminals for an open circuit according to the wiring diagram.

Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector T94 terminals or test box sockets
3	76
4	32

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Install the right vehicle floor cover -arrows-. Refer to the appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

OXYGEN SENSOR O2S 2 BEHIND THREE WAY CATALYTIC CONVERTER, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Note. Vehicle must be raised before the electrical connector for the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- is accessible. When servicing terminals 3 and 4 in the electrical harness connector of the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131-, use only gold-plated terminals.

Special tools and workshop equipment required

Generic scan tool
multimeter.
Wiring diagram.

Test requirements

The Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- fuse Ok.
Oxygen Sensor O2S Behind Three Way Catalytic Converter Heater - Z30- OK. Refer to «OXYGEN SENSOR O2S 2 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__oxygen-sensor-o2s-2-heater-behind) .
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, selector lever in position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Exhaust system between catalytic converter and cylinder head properly sealed.
Coolant Temperature at least 80 °C.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Connect scan tool.

Start the engine and let it run at idle.

Select "Diagnostic mode 6: Check test results of components that are not continuously monitored".

Select "Test-ID 02: Oxygen sensor monitoring behind catalytic converter".

Select following Test-IDs.

Check the specified values at idle.

Test-ID		Specified value
		Min.	Max.
1	Rich to lean sensor barrier voltage		0.6241 V
2	Lean to rich sensor barrier voltage		0.6241 V
7	Minimum voltage at sensor for test cycle		0.450 V
8	Maximum voltage at sensor for test cycle	0.450 V
129	Sensor voltage lean	0	0.6241 V
130	Sensor voltage rich	0.6241 V	1.2998 V
131	Deceleration test	0 V	0.1599 V

If the specified values are obtained

End diagnosis and switch ignition off.

If the specified values are not obtained

Remove the right vehicle floor cover -arrows-. Refer to the appropriate service information.

Checking primary voltage

Disconnect the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- electrical harness connector -2-.

Switch the ignition on.

Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- electrical harness connector terminals 3 to 4 for voltage.

Specified value: 0.400 to 0.500 Volts

Switch the ignition off.

If the specified value was not obtained

Replace the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) - G131-. Refer to the appropriate service information.

If the specified value was obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) - G131- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T94 terminals for an open circuit according to the wiring diagram.

Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector T94 terminals or test box sockets
3	54
4	55

Specified value: 1.5 ohms Max.

If the specification was not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Install the right vehicle floor cover -arrows-. Refer to the appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

OXYGEN SENSOR O2S HEATER, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Oxygen Sensor (O2S) Heater -Z19- is part of Heated Oxygen Sensor (HO2S) -G39- and cannot be replaced separately.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

Fuse -SB10- OK.
Engine Component Power Supply Relay -J757- OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Remove the engine cover with air filter. Refer to the appropriate service information.

Checking internal resistance

Disconnect the Heated Oxygen Sensor (HO2S) -G39- electrical harness connector -1-.

Using a multimeter, check the Heated Oxygen Sensor (HO2S) -G39- terminals 3 to 5 for resistance.

Specified value: 2.5 to 10.0 ohms (at approx. 20 °C)

If the specification was not obtained

Replace the Heated Oxygen Sensor (HO2S) -G39-. Refer to the appropriate service information.

If the specification was obtained

Checking voltage supply

Crank the engine (engine may run).

Using a multimeter, check the Heated Oxygen Sensor (HO2S) -G39- electrical harness connector terminal 5 to Ground (GND) for voltage.

Heated Oxygen Sensor (HO2S) -G39- electrical harness connector terminal	Engine Control Module (ECM) -J623- electrical harness connector T94 terminal or test box socket
5	Ground (GND)

Switch the ignition off.

Specified value: Battery voltage.

If the specification was not obtained

Check the Heated Oxygen Sensor (HO2S) -G39- electrical harness connector terminal 5 to the Engine Component Power Supply Relay -J757- socket 8 for an open circuit, a short circuit to each other, Battery (+), or Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specification was obtained

Checking Ground (GND) activation

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Heated Oxygen Sensor (HO2S) -G39- electrical harness connector terminal 3 to the Engine Control Module (ECM) -J623- electrical harness connector T94 terminal 73 for resistance.

Heated Oxygen Sensor (HO2S) -G39- electrical harness connector terminal	Engine Control Module (ECM) -J623- electrical harness connector T94 terminal or test box socket
3	73

Specified value: 1.5 ohms max.

If the specification was not obtained

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring and if the voltage supply was OK

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code)

OXYGEN SENSOR O2S 2 HEATER, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Oxygen Sensor (O2S) 2 Heater -Z28- is part of Heated Oxygen Sensor (HO2S) -G108- and cannot be replaced separately.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

Fuse -SB10- OK.
Engine Component Power Supply Relay -J757- OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Remove the engine cover with air filter. Refer to the appropriate service information.

Checking internal resistance

Disconnect the Heated Oxygen Sensor (HO2S) -G108- electrical harness connector -2-.

Using a multimeter, check the Heated Oxygen Sensor (HO2S) -G108- terminals 3 to 5 for resistance.

Specified value: 2.5 to 10.0 ohms (at approx. 20 °C)

If the specification was not obtained

Replace the Heated Oxygen Sensor (HO2S) -G108-. Refer to the appropriate service information.

If the specification was obtained

Checking voltage supply

Crank the engine (engine may run).

Using a multimeter, check the Heated Oxygen Sensor (HO2S) -G108- electrical harness connector terminal 5 to Ground (GND) for voltage.

Heated Oxygen Sensor (HO2S) -G108- electrical harness connector terminal	Engine Control Module (ECM) -J623- electrical harness connector T94 terminal or test box socket
5	Ground (GND)

Switch the ignition off.

Specified value: Battery voltage.

If the specification was not obtained

Check the Heated Oxygen Sensor (HO2S) -G108- electrical harness connector terminal 5 to the Engine Component Power Supply Relay -J757- socket 8 for an open circuit, a short circuit to each other, Battery (+), or Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specification was obtained

Checking Ground (GND) activation

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Heated Oxygen Sensor (HO2S) -G108- electrical harness connector terminal 3 to the Engine Control Module (ECM) -J623- electrical harness connector T94 terminal 51 for resistance.

Heated Oxygen Sensor (HO2S) -G108- electrical harness connector terminal	Engine Control Module (ECM) -J623- electrical harness connector T94 terminal or test box socket
3	51

Specified value: 1.5 ohms max.

If the specification was not obtained

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring and if the voltage supply was OK

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code)

OXYGEN SENSOR O2S 1 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Note. Oxygen Sensor (O2S) 1 Before Catalytic Converter Heater - Z29- is part of Oxygen Sensor (O2S) Before Three Way Catalytic Converter -G130- and cannot be replaced separately.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

Fuse -SB9- OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Remove right cover from vehicle underbody. Refer to the appropriate service information.

Checking internal resistance

Disconnect the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- electrical harness connector -1-.

Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- terminals 1 to 2 for resistance.

Scheme 185

Specified value: 2.5 to 14.0 ohms (at approx. 20 °C)

If the specification was not obtained

Replace the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to the appropriate service information.

If the specification was obtained

Checking voltage supply

Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- electrical harness connector terminal 1 to ground (GND) for voltage.

Specified value: Battery voltage.

If the specification was not obtained

Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- electrical harness connector terminal 1 to the Engine Component Power Supply Relay -J757- socket 8 for an open circuit, a short circuit to each other, or Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specification was obtained

Checking Ground (GND) activation

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- electrical harness connector to the Engine Control Module (ECM) -J623- electrical harness connector T94 for resistance.

Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- electrical harness connector terminal	Engine Control Module (ECM) -J623- electrical connector T94 terminal or test box socket
2	46

Specified value: 1.5 ohms max.

If the specification was not obtained

Check the wiring for a open circuit or short to Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring and if the voltage supply was OK

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

OXYGEN SENSOR O2S 2 HEATER BEHIND TWC CATALYTIC CONVERTER, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Note. Oxygen Sensor (O2S) 2 Behind TWC Catalytic Converter Heater - Z30- is part of Oxygen Sensor (O2S) Before Three Way Catalytic Converter -G131- and cannot be replaced separately.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

Fuse -SB9- OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Remove right cover from vehicle underbody. Refer to the appropriate service information.

Checking internal resistance

Disconnect the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- electrical harness connector -2-.

Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- terminals 1 to 2 for resistance.

Specified value: 2.5 to 14.0 ohms (at approx. 20 °C)

If the specification was not obtained

Replace the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131-. Refer to the appropriate service information.

If the specification was obtained

Checking voltage supply

Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- electrical harness connector terminal 1 to ground (GND) for voltage.

Specified value: Battery voltage.

If the specification was not obtained

Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- electrical harness connector terminal 1 to the Engine Component Power Supply Relay -J757- socket 8 for an open circuit, a short circuit to each other, or Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If the specification was obtained

Checking Ground (GND) activation

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- electrical harness connector to the Engine Control Module (ECM) -J623- electrical harness connector T94 for resistance.

Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G131- electrical harness connector terminal	Engine Control Module (ECM) -J623- electrical connector T94 terminal or test box socket
2	41

Specified value: 1.5 ohms max.

If the specification was not obtained

Check the wiring for a open circuit or short to Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring and if the voltage supply was OK

Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY

Perform a road test to verify repair.

If the DTC does not return

Generate readiness code. Refer to READINESS CODE .

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

TCM TO ECM CAN BUS TERMINAL RESISTANCE, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Prior to repair work, perform a preliminary check to verify the condition. Refer to PRELIMINARY CHECK .

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirement

A CAN malfunction was recognized
Battery voltage at least 12.5 volts
Engine control module fuses OK
Ignition switched off

Test procedure

Remove the transmission control module. Refer to the appropriate service information for removal and installation procedures.

Disconnect the transmission control module electrical harness connector.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

Repair as necessary.

Note. The ECM must remain connected for the following step. The central terminal resistor is located in the ECM.

Using a multimeter, check the Direct Shift Gearbox (DSG) Mechatronic -J743- electrical harness connector terminals 10 to 15 for resistance.

Specified value: 60 to 72 ohms (at approx. 20 °C)

If the specified value was not obtained

Checking wiring

Remove the engine control module. Refer to the appropriate service information for removal and installation procedures.

Using a multimeter, check each of the CAN bus circuits between the transmission control module and the engine control module. Refer to the applicable wiring diagram.

Check each CAN circuit for a short to ground, short to voltage, open circuit or high resistance.

Repair as necessary.

If the specified resistance value was not obtained and no malfunction is found in the wiring

Replace the engine control module. Refer to the appropriate service information for removal and installation procedures.

If the specified resistance value was obtained

Remove the engine control module. Refer to the appropriate service information for removal and installation procedures.

Check each TCM CAN circuit for a short to ground, short to voltage, open circuit or high resistance.

Repair as necessary.

If no malfunction is found in the wiring

Replace the transmission control module. Refer to the appropriate service information for removal and installation procedures.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

THROTTLE POSITION SENSOR/ACCELERATOR PEDAL POSITION SENSOR 2, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

multimeter.
Wiring diagram

Test requirement

The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.

Note. Use only gold-plated terminals when servicing the electrical harness connector terminals in Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Remove the drivers side storage compartment. Refer to the appropriate service information.

Disconnect the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185- 6-pin electrical harness connector -2-.

Scheme 186

Checking voltage supply and wiring

Switch the ignition on.

Using a multimeter, check the following wiring connections for voltage.

Scheme 187

Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185- electrical harness connector terminals	Specified value
1 to Ground (GND)	About 5 V
1 to 5	About 5 V
2 to Ground (GND)	About 5 V
2 to 3	About 5 V

Switch the ignition off.

If the specification was not obtained

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Using a multimeter, check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical connector T94 for an open circuit.

Scheme 188

Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623 - electrical connector T94 terminals or test box sockets
1	58
2	80
3	56
4	57
5	78
6	79

Specified value: 1.5 ohms max.

If the specification is not obtained

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring and if the voltage supply was OK

Replace the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to the appropriate service information.

If no malfunction is detected in the wiring and if the voltage supply was not OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Install the drivers side storage compartment. Refer to the appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

THROTTLE VALVE CONTROL MODULE, CHECKING

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

The Motronic Engine Control Module (ECM) - J623- fuses OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Throttle valve must not be damaged or dirty.
Coolant Temperature at least 80° C.

Function

Throttle valve operation occurs by an electric motor (Throttle Drive (for Electronic Power Control (EPC)) -G186-) in the Throttle Valve Control Module - J338-. It is operated by the Motronic Engine Control Module (ECM) -J623- and the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-.

The Throttle Valve Control Module -J338- is made up of the following components

Throttle Drive (for Electronic Power Control (EPC)) -G186
Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) -G187
Throttle Drive Angle Sensor 2 (for Electronic Power Control (EPC)) -G188

The Throttle Valve Control Module -J338- cannot be serviced separately and must be serviced as a unit.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

Connect the scan tool.

Switch ignition on.

Using the scan tool, check the throttle valve position (absolute) at idle stop

Diagnostic text		Specified value
Throttle valve position (absolute)
Idle stop		3.0 to 25.0%

Slowly depress the accelerator pedal to Wide Open Throttle (WOT) stop while observing the percentage display. The percentage display must increase uniformly.

Using the scan tool, check the throttle valve position (absolute) at Wide Open Throttle (WOT) stop

Diagnostic text		Specified value
Throttle valve position (absolute)
Wide Open Throttle (WOT) stop		84.0 to 97.0%

End diagnosis and switch ignition off.

If the specified values are not obtained

Remove the Throttle Valve Control Module -J338 - far enough so that the electrical connector terminals are reached.

Disconnect the Throttle Valve Control Module -J338- electrical harness connector -arrow-.

Scheme 189

Checking resistance

Using a multimeter, check the Throttle Drive (for Electronic Power Control (EPC)) -G186- at the Throttle Valve Control Module -J338- terminals 3 to 5 for resistance.

Scheme 190

Specified value: 1.0 to 5.0 ohms (at 20° C)

If the specification was not obtained

Replace the Throttle Valve Control Module - J338-. Refer to appropriate service information.

If the specification was obtained

Check the voltage supply of the Throttle Valve Control Module -J338- to the Motronic Engine Control Module (ECM) -J623-.

Checking voltage supply and wiring

Switch the ignition on.

Using a multimeter, check the Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) -G187- at the Throttle Valve Control Module -J338- electrical harness connector terminals 2 to 6 for voltage.

Scheme 191

Specified value: at least 4.5 V

Switch the ignition off.

If the specification was not obtained

Checking wiring

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Using a multimeter, check the Throttle Drive (for Electronic Power Control (EPC)) -G186- at Throttle Valve Control Module -J338- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminals for an open circuit according to the wiring diagram.

Scheme 192

Throttle Valve Control Module -J338- electrical harness connector terminals	Motronic Engine Control Module (ECM) -J623- electrical connector T60 terminals or test box socket
1	28
2	14
3	15
4	13
5	30
6	29

Specified value: 1.5 ohms max.

If the specification is not obtained

Check the wiring for a short circuit to Battery (+), or an open circuit.

If necessary, repair the faulty wiring connection.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If no malfunction is detected in the wiring and if the voltage supply was not OK

Replace the Motronic Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY, CHECKING

Special tools and workshop equipment required

multimeter.
Wiring diagram.

Test requirements

Fuse -SA2- OK.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.
Vehicles with automatic transmission, selector lever in position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

Using a multimeter, check the following wiring connection for voltage.

Motronic Engine Control Module (ECM) Power Supply Relay -J271- socket	Measure to
2	Engine Ground (GND)

Specified value: 12.5 V

If the specified value was not obtained

Using a multimeter, check the Motronic Engine Control Module (ECM) Power Supply Relay -J271- socket 2 to the Fuse 2 (on fuse panel A) -SA2- for an open circuit or short to Ground (GND).

Check the electrical harness connectors for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking voltage

Switch the key on

Using a multimeter, check the following wiring connection for voltage.

Motronic Engine Control Module (ECM) Power Supply Relay -J271- socket	Measure to
8	Engine Ground (GND)

Specified value: 12.5. battery voltage.

If the specified value was not obtained

Using a multimeter, check the Motronic Engine Control Module (ECM) Power Supply Relay -J271- socket 4 to the Fuse 2 (on fuse panel A) -SA2- for an open circuit or short to Ground (GND).

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking Ground (GND)

Using a multimeter, check the Motronic Engine Control Module (ECM) Power Supply Relay -J271- socket 6 to the Engine Control Module (ECM) -J623- electrical harness connector terminal T94/19 for resistance.

Ensure key is off.

Motronic Engine Control Module (ECM) Power Supply Relay -J271- socket	Measure toMotronic Engine Control Module (ECM) -J623- electrical connector T94 terminals or test box socket
6	19

Specified value: 1.5 ohms.

If the specified value was not obtained

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring and the voltage supply was OK

Replace theMotronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to appropriate service information.

Perform a road test to verify repair.

If the fault does not return

Generate readiness code. Refer to READINESS CODE .

If the fault does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to appropriate service information.

Assembly is performed in the reverse of the removal.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

ENGINE CONTROL MODULE VOLTAGE SUPPLY, CHECKING

Special tools and workshop equipment required

multimeter.
Wiring Diagram.

Test requirements

Fuse -SB7- OK.
Fuse -SB6- OK.
The Ground (GND) connections at the engine and transmission OK.
The battery voltage at least 12.5 V.
The generator OK.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis

If the manufacturers test box is being used, perform the following step.

Install the test box.

If the manufacturers test box is not being used, perform the following step.

Remove the Engine Control Module -J623-. Refer to the appropriate service information.

Checking voltage supply

Using a multimeter, check the following wiring connection for voltage.

Turn the key on

Engine Control Module -J623- electrical harness connector T94 terminal or test box socket	Measure to
3	Engine Ground (GND)

Specified value: 12.5 V

If the specified value was not obtained

Check the Engine Control Module -J623- electrical harness connector T94 terminal 3 to the Battery -A- positive terminal for an open circuit or short to Ground (GND).

Check the electrical harness connectors for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Using a multimeter, check the following wiring connections for voltage.

Engine Control Module (ECM) -J623- electrical harness connector T94 terminal or test box socket	Measure to
3	Engine Ground (GND)
5	Engine Ground (GND)
6	Engine Ground (GND)

Specified value: 12.5 V

Switch the ignition off.

If the specified value was not obtained

Check the Engine Control Module -J623- electrical harness connector T94 terminal 3, 5, 6 to the Engine Component Power Supply Relay -J757- socket 4 for an open circuit or short to Ground (GND).

Check the electrical harness connectors for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring

Checking Ground (GND)

Using a multimeter, check the following wiring connections for resistance.

Engine Control Module -J623- electrical harness connector T94 terminals or test box sockets	Measure to
1	Ground (GND) connection 1 in engine compartment wiring harness.
2	Ground (GND) connection 1 in engine compartment wiring harness.
4	Ground (GND) connection 1 in engine compartment wiring harness.

Specified value: 1.5 ohms.

If any of the specified values are not obtained

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If necessary, repair the wiring connection.

If no malfunctions are found in the wiring and the voltage supply was OK

Perform a road test to verify any electrical repairs.

If the fault does not return

Generate readiness code. Refer to READINESS CODE .

If the fault does return and no malfunction is detected in the wiring and the voltage supply was OK

Replace the Engine Control Module (ECM) -J623-. Refer to the appropriate service information.

Assembly is performed in the reverse of the removal.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

For all Automatic Transmission - Gears, hydraulic controls, Technical Data. Refer to the appropriate service information.

For all Automatic Transmission - Gears, hydraulic controls component locations. Refer to the appropriate service information.

For all Automatic Transmission - Gears, Hydraulic controls removal/installation procedures and torque specifications. Refer to the appropriate service information.

Note. All manufacturers special tools as well as common tools may contain a manufacturer specific part number. These tools may be substituted with an equivalent aftermarket tool and are available for rental or purchase through Audi. Manufacturers special tools as well as common tools that contain a manufacturer specific part number may be referenced in the test procedure illustrations showing the tool use or installation. If the manufacturer specific tool is not being used, an equivalent aftermarket tool may be installed in the same manner as the manufacturers special tool. The manufacturers test box Test Box 105 Pin VAG 1598/42 is available for purchase or rental. Certainly you have received an electrical shock once before when touching something made out of metal. The reason for this is the electrostatic charge of the human body. This charge can lead to functional problems by touching the electrical components of the transmission and selector lever mechanism. Touch a grounded object, e.g. a water pipe or a hoist, before working on the electrical components! Do not make direct contact on electrical harness connector terminals! Always switch ignition off before disconnecting or connecting Battery -A-, failure to do so may damage the Transmission Control Module (TCM) -J217-. If special testing equipment is required during road test, note the following

WARNING

Test equipment must always be secured to the rear seat and operated by a second person. If test and measuring equipment is operated from the passenger seat, the person seated could be injured in the event of an accident involving deployment of the passenger-side airbag. The use of nails, paper clips, or another unauthorized materials to back-probe electrical harness connectors is strictly prohibited and may cause damage to the electrical harness connectors, terminal ends or damage to a component. Use only the manufacturers test lead kit or an equivalent aftermarket test lead kit for back-probing all electrical harness connectors.

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Prior to repair work, perform a preliminary check to verify the condition. Refer to PRELIMINARY CHECK .

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required

Multimeter
Wiring diagram

Test requirement

A CAN malfunction was recognized
Battery voltage at least 12.5 volts
Engine control module fuses OK
Ignition switched off

Test procedure

Remove the transmission control module. Refer to the appropriate service information for removal and installation procedures.

Disconnect the transmission control module electrical harness connector.

Check the electrical harness connector for damage, corrosion, loose or broken terminals.

Using a multimeter, measure pin 2 of J217 harness to pin 6 of J533 connector and pin 6 of J217 to pin 16 of J533.

Specified value: 1 to 1.5 ohms

Repair if necessary.

Note. The ECM must remain connected for the following step. The central terminal resistor is located in the ECM.

Using a multimeter, check the Transmission Control Module (TCM) -J217- electrical harness connector terminals 2 to 6 for resistance.

Specified value: 60 to 72 ohms (at approx. 20 °C)

If the specified value was not obtained

Checking wiring

Remove the engine control module. Refer to the appropriate service information for removal and installation procedures.

Using a multimeter, check each of the CAN bus circuits between the transmission control module and the engine control module. Refer to the applicable wiring diagram.

Check each CAN circuit for a short to ground, short to voltage, open circuit or high resistance.

Repair as necessary.

If the specified resistance value was not obtained and no malfunction is found in the wiring

Replace the engine control module. Refer to the appropriate service information for removal and installation procedures.

If the specified resistance value was obtained

Remove the engine control module. Refer to the appropriate service information for removal and installation procedures.

Check each TCM CAN circuit for a short to ground, short to voltage, open circuit or high resistance.

Repair as necessary.

If no malfunction is found in the wiring

Replace the transmission control module. Refer to the appropriate service information for removal and installation procedures.

Final procedures

After repair work, the following work steps must be performed in the following sequence

Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-03-read-dtc) .
If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__diagnostic-mode-04-erase-dtc) .
If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(/audi/q5/i-2008-2012/remont/cooling-fan/#32l-generic-scan-tool-engine-codes-calb-as-of-042009__readiness-code) .

3.2l - Generic Scan Tool - Engine Code(s): Calb (as of 04.2009) Audi Q5 I

GENERAL INFORMATION

SAFETY PRECAUTIONS

CLEAN WORKING CONDITIONS

ON BOARD DIAGNOSTIC SYSTEMS

MALFUNCTION INDICATOR LAMP ILLUMINATION

CONTROLLER AREA NETWORK DATA LINK

ELECTRONIC POWER CONTROL WARNING LAMP

DESCRIPTION AND OPERATION

FUEL SUPPLY SYSTEM

EVAPORATIVE EMISSION SYSTEM

ELECTRONIC ENGINE POWER CONTROL

FUEL INJECTION SYSTEM

ENGINE CONTROL MODULE

EXHAUST SYSTEM COMPONENTS

SECONDARY AIR INJECTION SYSTEM

IGNITION SYSTEM

AUTOMATIC TRANSMISSION

PRELIMINARY CHECK

READINESS CODE

DIAGNOSTIC MODES 01 - 09

DIAGNOSTIC MODE 01 - READ CURRENT SYSTEM DATA

Test Requirement

Procedure

DIAGNOSTIC MODE 02 - READ OPERATING CONDITIONS

DIAGNOSTIC MODE 03 - READ DTC MEMORY

DIAGNOSTIC MODE 04 - ERASE DTC MEMORY

DIAGNOSTIC MODE 05 - READ OXYGEN SENSOR MONITORING TEST RESULTS

DIAGNOSTIC MODE 06 - READ TEST RESULTS FOR SPECIFIC DIAGNOSTIC FUNCTIONS

Test Requirements

Work Procedure

Monitor-ID 01 ($01) : Oxygen Sensor Monitor Bank 1 - Sensor 1

Monitor-ID 02 ($02): Oxygen Sensor Monitor Bank 1- Sensor 2

Monitor-ID 05 ($05) : Oxygen Sensor Monitor Bank 2 - Sensor 1

Monitor-ID 06 ($06): Oxygen Sensor Monitor Bank 2 - Sensor 2

Monitor-ID $21 (33): Catalytic Converter Monitoring Bank 1

Monitor-ID $22 (34): Catalytic Converter Monitoring Bank 2

Monitor-ID $35 (53) : Cam Shaft Adjustment IVVT Bank 1

Monitor-ID $36(54 : Cam Shaft Adjustment IVVT Bank 2

Monitor-ID $3A (58) : Fuel Tank EVAP System Integrity/Leak Test (0.90”)

Monitor-ID $3B (59) : Fuel Tank EVAP System Integrity/Leak Test (0.40/1.0mm)

Monitor-ID $3C (60) : Fuel Tank EVAP System Integrity/Leak Test (0.20/0.5mm)

Monitor-ID $3D (61) : EVAP Valve Function Check

Monitor-ID $41 (65) : Oxygen Sensor Heater Monitor Bank 1 - Sensor 1

Monitor-ID $45 (69) : Oxygen Sensor Heater Monitor Bank 2 - Sensor 1

Monitor-ID 66 ($42): Oxygen Sensor Heater Monitor Bank 1 - Sensor 2

Monitor-ID 70 ($46): Oxygen Sensor Heater Monitor Bank 2- Sensor 2

Monitor-ID $71 (113) : Secondary air system Bank 1

Monitor-ID $72 (114) : Secondary air system Bank 2

ODBMID A2 : Mis-Fire Cylinder 1 Data

ODBMID A3: Mis-Fire Cylinder 2 Data

ODBMID A4: Mis-Fire Cylinder 3 Data

ODBMID A5 : Mis-Fire Cylinder 4 Data

ODBMID A6 : Mis-Fire Cylinder 5 Data

ODBMID A7 : Mis-Fire Cylinder 6 Data

DIAGNOSTIC MODE 07 - READ FAULTS DETECTED DURING THE CURRENT OR LAST DRIVING CYCLE

DIAGNOSTIC MODE 08 - REQUEST CONTROL OF ON-BOARD SYSTEM, TEST OR COMPONENT

Function Test

DIAGNOSTIC MODE 09 - READ VEHICLE INFORMATION

DTC TABLES

CAMSHAFT ADJUSTMENT VALVE 1, CHECKING

Scheme 127

Scheme 128

Scheme 129

Scheme 130

Scheme 131

CAMSHAFT ADJUSTMENT VALVE 2, CHECKING

CAMSHAFT ADJUSTMENT VALVE 1, EXHAUST, CHECKING

Scheme 132

CAMSHAFT ADJUSTMENT VALVE 2, EXHAUST, CHECKING

Scheme 133

CAMSHAFT POSITION SENSOR, CHECKING

Scheme 134

Scheme 135

Scheme 136

CAMSHAFT POSITION SENSOR 2, CHECKING

CAMSHAFT POSITION SENSOR 3, CHECKING

Scheme 137

CAMSHAFT POSITION SENSOR 4, CHECKING

Scheme 138