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.
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 |
|---|---|
| $01 | Monitoring status since erasing DTC memory |
| $03 | Status of fuel system bank 1 and 2 |
| $04 | Calculated load value |
| $05 | Coolant temperature |
| $06 | Short term fuel trim bank 1 |
| $07 | Long term fuel trim bank 1 |
| $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 |
| $13 | Oxygen Sensor Bank 1 Sensor 1 |
| $15 | Oxygen Sensor Bank 1 Sensor 2 |
| $1F | Time since engine start |
| $21 | Distance driven with MIL ON |
| $23 | Fuel rail pressure |
| $2E | Commanded evap purge |
| $30 | Warm up counts after DTC erased |
| $31 | Distance driven after erasing DTC memory |
| $33 | Barometric pressure |
| $34 | Heater current Bank 1 Sensor 1 |
| $3C | Calculated catalyst temperature |
| $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 | Absolute throttle position B |
| $49 | Accelerator pedal position D |
| $4A | Accelerator pedal position E |
| $4C | Commanded throttle actuator control |
| $56 | Long term secondary O2 sensor fuel trim bank 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).
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 "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 |
|---|---|
| $02 | DTC which triggered Freeze Frame data |
| $03 | Fuel system status |
| $04 | Calculated load value |
| $05 | Engine coolant temperature |
| $06 | Short term fuel trim bank 1 |
| $07 | Long term fuel trim bank 1 |
| $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 |
| $1F | Time since engine start |
| $23 | Fuel rail pressure |
| $2E | Commanded evap purge |
| $33 | Barometric pressure |
| $42 | Control module voltage |
| $43 | Absolute load value |
| $44 | Commanded equivalence ratio |
| $45 | Relative throttle valve position |
| $46 | Ambient temperature |
| $47 | Throttle valve position 2 absolute |
| $49 | Accelerator pedal position D |
| $4A | Accelerator pedal position E |
| $4C | Specified throttle valve position |
| $56 | Long term secondary O2 sensor fuel trim bank 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 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 minimum & maximum 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 | |
|---|---|
| GST manual documentation | 0.3499 |
| Aftermarket scan tool display | 0.35 |
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" that may be selected.
| Monitor-ID (Hex-ID) | Component or System |
|---|---|
| $01: MONITOR-ID $01: OXYGEN SENSOR MONITOR BANK 1 - SENSOR 1 | Oxygen Sensor Monitor Bank 1 - Sensor 1 |
| $02: MONITOR-ID $02: OXYGEN SENSOR MONITOR BANK 1- SENSOR 2 | Oxygen Sensor Monitor Bank 1 - Sensor 2 |
| $21: MONITOR-ID $21: CATALYTIC CONVERTER MONITORING | Catalytic Converter Monitoring |
| $35: MONITOR-ID $35: CAMSHAFT ADJUSTMENT / I V V T BANK 1 | Camshaft Adjustment / VVT Bank 1 |
| $3A: MONITOR-ID $3A: FUEL TANK EVAP SYSTEM INTEGRITY/LEAK TEST (0.90") | Fuel Tank EVAP System Integrity/Leak Test (0.90") |
| $3B: MONITOR-ID $3B: FUEL TANK EVAP SYSTEM INTEGRITY/LEAK TEST (0.40/1.0MM) | Fuel Tank EVAP System Integrity/Leak Test (0.40/1.0 mm) |
| $3C: MONITOR-ID $3C: FUEL TANK EVAP SYSTEM INTEGRITY/LEAK TEST (0.20/0.5MM) | Fuel Tank EVAP System Integrity/Leak Test (0.20/0.5 mm) |
| $3D: MONITOR-ID $3D: EVAP VALVE FUNCTION CHECK | EVAP Purge Valve Function Check |
| $41: MONITOR-ID $41: OXYGEN SENSOR HEATER MONITOR BANK 1 - SENSOR 1 | Oxygen Sensor Heater Monitor Bank 1 - Sensor 1 |
| $42: MONITOR-ID $42: OXYGEN SENSOR HEATER MONITOR BANK 1 - SENSOR 2 | Oxygen Sensor Heater Monitor Bank 1 - Sensor 2 |
| $A2: MONITOR-ID $A2: MIS-FIRE CYLINDER 1 DATA | Mis-Fire Cylinder 1 Data |
| $A3: MONITOR-ID $A3: MIS-FIRE CYLINDER 2 DATA | Mis-Fire Cylinder 2 Data |
| $A4: MONITOR-ID $A4: MIS-FIRE CYLINDER 3 DATA | Mis-Fire Cylinder 3 Data |
| $A5: MONITOR-ID $A5: MIS-FIRE CYLINDER 4 DATA | Mis-Fire Cylinder 4 Data |
MONITOR-ID $3A: 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 3A".
Select the desired "Test-ID".
Check specified values at idle.
| Test-ID (Hex-ID) | DTC | Component or System | Min. | Max. | Additional Information |
|---|---|---|---|---|---|
| $81 | P0455 | Tank leak test: Large leak. | 950 mSec. | 65535 mSec | Refer to DTC P0455 in the DTC summary table. Refer to: DTC TABLES . |
If any of components or systems fail to meet the specified values. Refer to Diagnostic "Mode 03: Interrogating Fault Memory" to check for stored DTC's or the corresponding diagnostic repair procedure DIAGNOSTIC MODE 03 - READ DTC MEMORY .
Switch the ignition OFF.
MONITOR-ID $3B: 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 3B".
Select the desired "Test-ID".
Check specified values at idle.
| Test-ID (Hex-ID) | DTC | Component or System | Min. | Max. | Additional Information |
|---|---|---|---|---|---|
| $81 | P0442 | Fuel Tank Leak Test: Small leak. | 6000 mSec. | 65535 mSec | Refer to DTC P0442 the DTC summary table. Refer to: DTC TABLES |
If any of components or systems fail to meet the specified values. Refer to Diagnostic "Mode 03: Interrogating Fault Memory" to check for stored DTC's or the corresponding diagnostic repair procedure DIAGNOSTIC MODE 03 - READ DTC MEMORY .
Switch the ignition OFF.
Switch the ignition OFF.
MONITOR-ID $3C: 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 3C".
Select the desired "Test-ID".
Check specified values at idle.
| Test-ID (Hex-ID) | DTC | Component or System | Min. | Max. | Additional Information |
|---|---|---|---|---|---|
| $81 | Tank leak test: Pinhole leak (0.5 mm). | 6000 mSec. | 65535 mSec | Refer to DTC P0456 in the DTC summary table. Refer to: DTC TABLES . | |
| $82 | P0456 | Fuel Tank Leak Test. | 4.977 g | 6553.5 g | Pass only. |
If any of components or systems fail to meet the specified values. Refer to Diagnostic "Mode 03: Interrogating Fault Memory" to check for stored DTC's or the corresponding diagnostic repair procedure DIAGNOSTIC MODE 03 - READ DTC MEMORY .
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.
Test requirements
- 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 EVAP 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 | |
| 08 | In Use Performance Tracking |
| 0A | ECU module acronym and text name |
Switch the ignition OFF.
DTC TABLES
| 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 Camshaft Position Slow Response Bank 1 | Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING . | Difference between target vs. actual > 8 °CRK sec. | Time after engine start > 3 Sec. Frequency 4 times Engine speed 600 to 6000 RPM | 14 Sec. | 2 DCY |
| P0010 | Intake Camshaft Position Actuator Circuit Open (Bank 1) | Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING . | Signal voltage, > 4.4 - 5.6 V | Camshaft valve off Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P0011 | Intake Camshaft Position Timing - Over-Advanced (Bank 1) | Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING . | Adjustment angle < 2.5 ° CRK Difference between target vs. actual position < 2.5 ° CRK | Time after engine start > 3 Sec. Oil temperature -48 to 143 °C Frequency 4 times Engine speed 600 to 6000 RPM | 14 Sec. | 2 DCY |
| P0016 | Crankshaft Position - Camshaft Position Correlation | Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING .-- Check the Engine Speed Sensor -G28-. Refer to ENGINE SPEED SENSOR, CHECKING | Permissible deviation < -11 rev OR Permissible deviation > 11 rev | 2 Sec. | 2 DCY | |
| P025A | Fuel Pump | Check the Fuel Pump -G6-. Refer to FUEL PUMP ELECTRICAL, TESTING . | Signal voltage > 4.4 - 5.6 V | Engine speed,> 80 RPM Battery voltage, 9.04-16 V | 0.5 Sec. | 2 DCY |
| P025C | Fuel Pump | Check the Fuel Pump -G6-. Refer to FUEL PUMP ELECTRICAL, TESTING . | Signal voltage< 2.15 - 3.25 V | Engine speed,> 80 RPM Battery voltage, 9.04-16 V | 0.5 Sec. | 2 DCY |
| P025D | Fuel Pump | Check the Fuel Pump -G6-. Refer to FUEL PUMP ELECTRICAL, TESTING . | Signal current > 1.1 A | Engine speed,> 80 RPM Battery voltage, 9.04-16 V | 0.5 Sec. | 2 DCY |
| P0030 | HO2S Heater Control Circuit (Bank 1, Sensor 1) | Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR HEATER BEFORE CATALYTIC CONVERTER, CHECKING . | Heater voltage 2.34 - 3.59 V | Time after engine start > 5 Sec. Heater commanded off | 0.5 Sec. | 2 DCY |
| P0031 | HO2S Heater Control Circuit Low (Bank 1, Sensor 1) | Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR HEATER BEFORE CATALYTIC CONVERTER, CHECKING . | Heater voltage < 2.34 V | Time after engine start > 5 Sec. Heater commanded off | 0.5 Sec. | 2 DCY |
| P0032 | HO2S Heater Control Circuit High (Bank 1, Sensor 1) | Check the Oxygen Sensor (O2S) Heater -Z19-. Refer to OXYGEN SENSOR HEATER BEFORE CATALYTIC CONVERTER, CHECKING . | Heater voltage > 3.59 V | Time after engine start > 5 Sec. Heater commanded off | 0.5 Sec. | 2 DCY |
| P0036 | HO2S Heater Control Circuit (Bank 1, Sensor 2) | Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR HEATER BEHIND CATALYTIC CONVERTER, CHECKING . | Heater voltage, 4.50 - 5.50 V | Time after engine start > 5 Sec. Heater, Commanded off | 0.5 Sec. | 2 DCY |
| P0037 | HO2S Heater Control Circuit Low (Bank 1, Sensor 2) | Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR HEATER BEHIND CATALYTIC CONVERTER, CHECKING . | Heater voltage < 3.00 V | Time after engine start > 5 Sec. Heater, Commanded off | 0.5 Sec. | 2 DCY |
| P0038 | HO2S Heater Control Circuit High (Bank 1, Sensor 2) | Check the Oxygen Sensor (O2S) Heater -Z29-. Refer to OXYGEN SENSOR HEATER BEHIND CATALYTIC CONVERTER, CHECKING . | Heater current, > 2.70 - 5.50 A | Time after engine start > 5 Sec. Heater, Commanded on | 0.5 Sec. | 2 DCY |
| P0068 | MAP/MAF - Throttle Position Correlation | Check the Mass Air Flow (MAF) Sensor -G70-. Refer to MAF SENSOR, CHECKING . | Plausibility with fuel system Load calculation < -22% Plausibility with fuel system Load calculation > 22% | Engine speed 1280 to 6000 RPM ECT > 63 °C IAT < 90 °C MAF, 0 to 450 kg/h Load 20 to 100% Fuel system monitor running Lambda control closed loop | 50 Sec. | 2 DCY |
| P0070 | Ambient Air Temperature Sensor Circuit | Check the Ambient Temperature Sensor -G17-. Refer to AMBIENT AIR TEMPERATURE SENSOR, CHECKING | Ambient air temperature < -50 °C | CAN active | 6 Sec. | 2 DCY |
| P0071 | Ambient Air Temperature Sensor Range/Performance | Check the Ambient Temperature Sensor -G17-. Refer to AMBIENT AIR TEMPERATURE SENSOR, CHECKING | Difference in value between AAT and IAT at engine start (depending on engine off time) > 24.75 °C Difference in value between AAT and ECT at engine start (depending on engine off time) > 24.75 °C | Engine off time > 5 hours ECT @ engine start < 1.5 °C minus ECT @ time after engine start 60 Sec. AAT @ engine start < 3 °C minus AAT @ condition veh speed > 25 mph for time > 10 Sec. IAT @ engine start < 3 °C minus IAT @ condition veh speed > 25 mph for time > 10 Sec. | 60 Sec. | 2 DCY |
| P0072 | Ambient Air Temperature Sensor Circuit Low | Check the Ambient Temperature Sensor -G17-. Refer to AMBIENT AIR TEMPERATURE SENSOR, CHECKING | Ambient air temperature > 76 °C | CAN active | 6 Sec. | 2 DCY |
| P0087 | Fuel Rail/System Pressure - Too Low | Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING . | Fuel trim activity 1.3 - 0.16 Output value rail pressure controller > 4 MPa Difference between target and actual pressure > -16.4 | Engine speed > 800 RPM EVAP purge adaptation < 22 Lambda control closed loop | 5 Sec. | 2 DCY |
| P0100 | Mass Air Flow Circuit | Check the Mass Air Flow (MAF) Sensor -G70-. Refer to MAF SENSOR, CHECKING . | MAF sensor signal 0 μs | Engine speed > 20 RPM | 0.5 Sec. | 2 DCY |
| P0101 | Mass Air Flow Circuit Range/Performance | Check the Mass Air Flow (MAF) Sensor -G70-. Refer to MAF SENSOR, CHECKING . | Mass air flow vs. upper threshold model > 60 to 800 kg/h lower threshold model < 0 to 400 kg/h Load calculation > 18% or < -18% Fuel system < -17% or > 17% | Time after engine start > 0.5 Sec. and > 150 camshaft revolutions Throttle position < 99.6% Engine speed 1260 - 5000 RPM ECT > 63 °C IAT < 90 °C Mass air flow 0 - 450 kg/h Engine load 20 - 100% Lambda control closed loop EVAP purge valve closed No low fuel signal | 2 Sec. | 2 DCY |
| P0102 | Mass Air Flow Circuit Low Input | Check the Mass Air Flow (MAF) Sensor -G70-. Refer to MAF SENSOR, CHECKING . | MAF sensor signal < 66 μs | Engine speed > 20 RPM | 0.5 Sec. | 2 DCY |
| P0103 | Mass Air Flow Circuit High Input | Check the Mass Air Flow (MAF) Sensor -G70-. Refer to MAF SENSOR, CHECKING . | MAF sensor signal > 4500 μs | Engine speed > 20 RPM | 0.5 Sec. | 2 DCY |
| P0106 | Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance | Check the Charge Air Pressure Sensor -G31-. Refer to CHARGE AIR PRESSURE SENSOR, CHECKING . If there is no fault found with the Charge Air Pressure sensor or wiring, check for any related TSB's. The Altitude sensor is located within the ECM and will require replacement of the ECM if the reading is more than 10% out of range. Refer to the Repair Instructions. | Difference of boost pressure signal vs altitude sensor signal > 230 hPa OR Difference of boost pressure signal vs altitude sensor signal < -130 hPa | Engine speed < 1000 RPM Throttle position < 11.50% | 2 Sec. | 2 DCY |
| P0111 | Intake Air Temperature Sensor 1 Circuit Range/Performance | Check the MAF / IAT sensor -G70, G42-. Refer to IAT IN MAF SENSOR, CHECKING . | Difference in value IAT vs. ECT @ engine start (depending on engine off time) > 24.75 °C Difference in value IAT - AAT @ engine start < 24.75 °C (depending on engine off time) | Engine off time > 5 hours ECT @ engine start < 1.5 °C minus ECT @ time after engine start 60 Sec. AAT @ engine start < 3 °C minus AAT @ condition veh speed > 25 mph for time > 10 Sec. IAT @ engine start < 3 °C minus IAT @ condition veh speed > 25 mph for time > 10 Sec. | 60 Sec. | 2 DCY |
| P0112 | Intake Air Temperature Sensor 1 Circuit Low Input | Check the MAF / IAT sensor -G70, G42-. Refer to IAT IN MAF SENSOR, CHECKING . | IAT > 141.0 °C | 2 Sec. | 2 DCY | |
| P0113 | Intake Air Temperature Sensor 1 Circuit High Input | Check the MAF / IAT sensor -G70, G42-. Refer to IAT IN MAF SENSOR, CHECKING . | IAT < -46 °C | 2 Sec. | 2 DCY | |
| P0116 | Engine Coolant Temperature Sensor 1 Circuit Range/Performance | Check the Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR 1 OR 2 CHECKING . | Difference in value IAT vs. ECT @ engine start (depending on engine off time) > 24.75 °C Difference in value IAT - AAT @ engine start < 24.75 °C (depending on engine off time) | Engine off time > 5 hours ECT @ engine start < 1.5 °C minus ECT @ time after engine start 60 Sec. AAT @ engine start < 3 °C minus AAT @ condition veh speed > 25 mph for time > 10 Sec. IAT @ engine start < 3 °C minus IAT @ condition veh speed > 25 mph for time > 10 Sec. | 60 Sec. | 2 DCY |
| P0117 | Engine Coolant Temperature Sensor 1 Circuit Low Input | Check the Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR 1 OR 2 CHECKING . | ECT >140 °C | 2 Sec. | 2 DCY | |
| P0118 | Engine Coolant Temperature Sensor 1 Circuit High Input | Check the Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR 1 OR 2 CHECKING . | ECT < -40 °C | 2 Sec. | 2 DCY | |
| P0121 | Throttle/Pedal Position Sensor 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 > 6.30% Actual TPS 1 calculated value > TPS 2 calculated value TPS 1 calc. value > 9.00% | Engine speed > 480 RPM | 0.3 Sec. | 2 DCY |
| P0122 | Throttle/Pedal Position Sensor 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 < 0.20 V | 0.1 Sec. | 2 DCY | |
| P0123 | Throttle/Pedal Position Sensor 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 > 4.81 V | 0.1 Sec. | 2 DCY | |
| P0130 | O2 Sensor Circuit (Bank 1, Sensor 1) | Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING | O2S ceramic temp. < 640 °C | Modeled exhaust temp > 300 °C Fuel cutoff not active | 12 Sec. | 2 DCY |
| P0131 | O2 Sensor Circuit, Bank 1 - Sensor 1 Low Voltage | Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING | VM > 2 V UN > 1.75 V IA or IP > 0.30 V | 10 Sec. | 2 DCY | |
| P0132 | O2 Sensor Circuit, Bank 1 - Sensor 1 High Voltage | Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING | VM > 3 V UN > 4 V IA or IP > 1.5 V | 10 Sec. | 2 DCY | |
| P0133 | O2 Circuit Slow Response (Bank 1, Sensor 1) | Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING | Signal dynamic slope check O2S signal front vs. modeled O2S signal ratio < 0.35 and > 0.01 Cycles completed > 40 Oscillation check Lambda amplitude signal > 20% Cycles > 8 Time lambda > lambda amplitude 400 m sec. Delay check Delay modeled lambda signal minus measured signal > 460 m sec. Cycles > 12 | Engine speed, 1320 - 4000 RPM Engine load, 35 - 100.01% Delta engine load < 6% Actual lambda, 0.85-1.15 Lambda control, Closed loop EVAP purge flow < 18- Determination of max and min slope ratios 0.01 - 4 O2S hexagon modeled temp < 569.99 °C O2S ceramic temp > 715 °C Determination of measurement window, 500 m sec. Oscillation and delay check Lambda control, Closed loop Engine load 20 - 80% Engine speed 1340 - 3500 RPM Delta engine load < 3% Actual lambda 0.75 - 1.25 | 400 Sec. Oscillation and delay check 200 Sec. | 2 DCY |
| P0135 | O2 Heater Circuit (Bank 1, Sensor 1) | Check the Oxygen Sensor (O2S) Heater -G39-. Refer to OXYGEN SENSOR HEATER BEFORE CATALYTIC CONVERTER, CHECKING . | Heater duty cycle, >100% O2S ceramic temperature, < 715 °C Time after O2S heater on 40 Sec. Difference between measured calibration resistance in ECM and set value > 45 ohm | Heater control, Active Modeled exhaust gas temp, > 299.99 °C ECT at start > -9.80 °C Engine shutoff time > 300 Sec. Time after engine start > 15 Sec. Engine speed, idle | 15 - 55 Sec. | 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 REGULATION BEHIND CATALYTIC CONVERTER, CHECKING . | Delta voltage one step at heater switching > 2.00 V Number of checks 4 | Sensor voltage <= 0.40 V Modeled exhaust gas temp. >= 700 °C for 10 Sec. | 40 Sec. | 2 DCY |
| P0137 | O2 Circuit Low Voltage (Bank 1, Sensor 2) | Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR REGULATION BEHIND CATALYTIC CONVERTER, CHECKING . | Cold condition Signal voltage, < 59.6 mV Warm condition Signal voltage < 59.6 mv Reaction at closed loop enrichment - no reaction | ECT at engine off, > 60 °C ECT < 39.8 °C Modeled exhaust gas temp. 200.006 - 800.006 °C for 60 Sec. Warm condition 1st lambda control loop not at max value Modeled exhaust gas temp. 200.006 - 800.006 °C for 60 Sec. | Cold cond. 5.1 Sec. Warm cond. 40 Sec. | 2 DCY |
| P0138 | O2 Circuit High Voltage (Bank 1, Sensor 2) | Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR REGULATION BEHIND CATALYTIC CONVERTER, CHECKING . | Signal voltage 1.26 V | Modeled exhaust gas temp. 200.006 - 800.006 °C for 60 Sec. | 5.1 Sec. | 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 REGULATION BEHIND CATALYTIC CONVERTER, CHECKING . | EWMA filtered transient time at fuel cutoff > 1.2 Sec. In voltage range of 201 - 401 mV Number of checks, 3 | Rich voltage enable > = 547.9 mV Lean voltage < = 201.2 mV Fuel cutoff active O2S rear ready Modeled exhaust gas temp > 400 °C Front O2 sensor lambda signal > 2.00 V | 100 Sec. | 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 REGULATION BEHIND CATALYTIC CONVERTER, CHECKING . | Signal voltage Signal voltage 0.40 - 0.60 mV for > 3 Sec. Internal resistance > 40000 ohm | Signal voltage Exhaust gas temp. 700° C for > 20 Sec. Internal resist. Modeled exhaust gas temp. 600° C for > 60 Sec. O2S rear ready | 5 to 50 Sec. | 2 DCY |
| P0141 | O2 Heater Circuit (Bank 1, Sensor 2) | Check the Oxygen Sensor (O2S) Heater -G465-. Refer to OXYGEN SENSOR HEATER BEHIND CATALYTIC CONVERTER, CHECKING . | Heater resistance, 792 to 4560 Ohm | Heater commanded on Modeled exhaust gas temp, 250 - 650 °C Engine shutoff time > 300 Sec. Fuel cutoff not active No. of checks = 10 | 15 Sec. | 2 DCY |
| P0169 | Incorrect Fuel Composition | Check for contaminated / aged fuel or possible high concentration of alcohol in fuel (above 15%). | Fuel quantity incorrect Fuel correction factor incorrect Internal check failed | Engine speed > 1200 RPM | 0.5 to 2.08 Sec. | 2 DCY |
| P0171 | System Too Lean (Bank 1) | Check the intake system for leaks (false air).-- Check the vacuum lines for leaks-- Check the fuel pressure --. Refer to FUEL PRESSURE TEST -- Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING -- Check the fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G465-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING . | At idle Adaptive value > 5.02% At part load Adaptive value > 21% | At idle Engine speed, 560 - 1200 RPM Engine load, 9 - 45% Mass air flow 5-23 kg/h ECT > 63 °C IAT < 90° C Part load adaptation ready Lambda control, Closed loop EVAP purge valve, Closed No low fuel signal At part load Throttle position < 99.6% Engine speed 1320 - 5000 RPM Engine load 20 - 100% Mass air flow 27 - 450 kg/h ECT > 63 °C IAT < 90 °C Lambda control closed loop EVAP purge valve closed No low fuel signal | 10 Sec. | 2 DCY |
| P0172 | System Too Rich (Bank 1) | Check the fuel pressure --. Refer to FUEL PRESSURE TEST -- Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING -- Check the fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G465-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE, CHECKING . | At idle Adaptive value < -5.02% At part load Adaptive value < -21% | At idle Engine speed, 560 - 1200 RPM Engine load, 9 - 45% Mass air flow 5-23 kg/h ECT > 63 °C IAT < 90° C Part load adaptation ready Lambda control, Closed loop EVAP purge valve, Closed No low fuel signal At part load Throttle position < 99.6% Engine speed 1320 - 5000 RPM Engine load 20 - 100% Mass air flow 27 - 450 kg/h ECT > 63 °C IAT < 90 °C Lambda control closed loop EVAP purge valve closed No low fuel signal | 10 Sec. | 2 DCY |
| P0190 | Fuel Rail Pressure Sensor Circuit | Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING | Signal voltage > 4.8 V | 0.5 Sec. | 2 DCY | |
| P0191 | Fuel Rail Pressure Sensor Circuit Range/Performance | Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING | Actual pressure > 20.6 MPa | Time after engine start > 0 Sec. Engine speed > 90 RPM | 3 Sec. | 2 DCY |
| P0192 | Fuel Rail Pressure Sensor Circuit Low Input | Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING | Signal voltage < 0.2 V | 0.5 Sec. | 2 DCY | |
| P0201 | Injector Circuit / Open - Cylinder 1 | Check the fuel injectors -N30-. Refer to FUEL INJECTORS, CHECKING . | Low side signal current < 2.1 A Internal logic failure | Engine speed, > 80 RPM Injection valve switched on | 0.5 Sec. | 2 DCY |
| P0202 | Injector Circuit / Open - Cylinder 2 | Check the fuel injectors -N31-. Refer to FUEL INJECTORS, CHECKING . | Low side signal current < 2.1 A Internal logic failure | Engine speed, > 80 RPM Injection valve switched on | 0.5 Sec. | 2 DCY |
| P0203 | Injector Circuit / Open - Cylinder 3 | Check the fuel injectors -N32-. Refer to FUEL INJECTORS, CHECKING . | Low side signal current < 2.1 A Internal logic failure | Engine speed, > 80 RPM Injection valve switched on | 0.5 Sec. | 2 DCY |
| P0204 | Injector Circuit / Open - Cylinder 4 | Check the fuel injectors -N33-. Refer to FUEL INJECTORS, CHECKING . | Low side signal current < 2.1 A Internal logic failure | Engine speed, > 80 RPM Injection valve switched on | 0.5 Sec. | 2 DCY |
| P0221 | Throttle/Pedal Position Sensor/Switch 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 > 6.30% Actual TPS 2 calculated value > TPS 1 calculated value TPS 2 - calc. value > 9.00% | Engine speed > 480 RPM | 0.3 Sec. | 2 DCY |
| P0222 | Throttle/Pedal Position Sensor/Switch 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 < 0.20 V | 0.1 Sec. | 2 DCY | |
| P0223 | Throttle/Pedal Position Sensor/Switch 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 > 4.81 V | 0.1 Sec. | 2 DCY | |
| P0234 | Turbocharger Overboost Condition | Check the Charge Air Pressure sensor -G31-. Refer to CHARGE AIR PRESSURE SENSOR, CHECKING -- Check the Wastegate Bypass Regulator Valve -N75-. Refer to WASTEGATE BYPASS REGULATOR VALVE, CHECKING .-- Check the Turbocharger Recirculating Valve -N249-. Refer to TURBOCHARGER RECIRCULATING VALVE, CHECKING NOTE: Check the Altitude sensor reading and make sure it is correct for the location (if unsure of the elevation compare to a vehicle with no faults). If the reading is off by 10% or more, the Altitude sensor is part of the ECM circuit board and will require ECM replacement. | Difference of set value boost pressure vs actual boost sensor signal > 200 to 1275 hPa | Altitude < 2700 m | 1.2 Sec. | 2 DCY |
| P0236 | Turbocharger Boost Sensor Circuit Range/Performance | Check the Charge Air Pressure sensor -G31-. Refer to CHARGE AIR PRESSURE SENSOR, CHECKING | Difference of set value boost pressure vs altitude sensor signal > 230 and < -130 hPa | Engine speed < 1000 RPM Throttle position < 6.81% | 2 Sec. | 2 DCY |
| P0237 | Turbocharger Boost Sensor Circuit Low | Check the Charge Air Pressure sensor -G31-. Refer to CHARGE AIR PRESSURE SENSOR, CHECKING | Signal voltage < 0.2 V | 0.5 Sec. | 2 DCY | |
| P0238 | Turbocharger Boost Sensor A Circuit High | Check the Charge Air Pressure sensor -G31-. Refer to CHARGE AIR PRESSURE SENSOR, CHECKING | Signal voltage > 4.88 V | 0.5 Sec. | 2 DCY | |
| P0243 | Turbocharger Wastegate Solenoid | Check the Wastegate Bypass Regulator Valve -N75-. Refer to WASTEGATE BYPASS REGULATOR VALVE, CHECKING . | Signal voltage > 5.6 - 4.4 V | Charge (boost) pressure control valve, commanded off Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P0245 | Turbocharger Wastegate Solenoid Low | Check the Wastegate Bypass Regulator Valve -N75-. Refer to WASTEGATE BYPASS REGULATOR VALVE, CHECKING . | Signal voltage < 3.25 - 2.15 V | Charge (boost) pressure control valve, commanded off Engine speed, > 80 RPM | 0.5 Sec. | 2 DCY |
| P0246 | Turbocharger Wastegate Solenoid High | Check the Wastegate Bypass Regulator Valve -N75-. Refer to WASTEGATE BYPASS REGULATOR VALVE, CHECKING . | Signal current > 2.2 A | Charge (boost) pressure control valve, commanded off Engine speed, > 80 RPM | 0.5 Sec. | 2 DCY |
| P025A | Fuel Pump Module Control Circuit/Open | Check the Fuel Pump Module -J538-. Refer to FUEL PUMP ELECTRICAL, TESTING | Signal voltage 4.40 - 5.60 V | Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P025C | Fuel Pump Module Control Circuit Low | Check the Fuel Pump Module -J538-. Refer to FUEL PUMP ELECTRICAL, TESTING | Signal voltage 2.15 - 3.25 V | Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P025D | Fuel Pump Module Control Circuit High | Check the Fuel Pump Module -J538-. Refer to FUEL PUMP ELECTRICAL, TESTING | Signal current > 1.10 A | Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P0261 | Cylinder 1 Injector Circuit Low | Check the fuel injectors -N30-. Refer to FUEL INJECTORS, CHECKING . | Signal current < 2.1 A | Injection valve, Commanded on Engine speed, > 80 RPM High side signal current, > 4.20 A | 0.5 Sec. | 2 DCY Actual TPS 2 calculated value > TPS 1 calculated value |
| P0262 | Cylinder 1 Injector Circuit High | Check the fuel injectors -N30-. Refer to FUEL INJECTORS, CHECKING . | Signal current > 14.70 A | Injection valve, Commanded on Engine speed, > 80 RPM | 0.5 Sec. | 2 DCY |
| P0264 | Cylinder 2 Injector Circuit Low | Check the fuel injectors -N31-. Refer to FUEL INJECTORS, CHECKING . | Signal current < 2.1 A | Injection valve, Commanded on Engine speed, > 80 RPM High side signal current, > 4.20 A | 0.5 Sec. | 2 DCY |
| P0265 | Cylinder 2 Injector Circuit High | Check the fuel injectors -N31-. Refer to FUEL INJECTORS, CHECKING . | Signal current > 14.70 A | Injection valve, Commanded on Engine speed, > 80 RPM | 0.5 Sec. | 2 DCY |
| P0267 | Cylinder 3 Injector Circuit Low | Check the fuel injectors -N32-. Refer to FUEL INJECTORS, CHECKING . | Signal current < 2.1 A | Injection valve, Commanded on Engine speed, > 80 RPM High side signal current, > 4.20 A | 0.5 Sec. | 2 DCY |
| P0268 | Cylinder 3 Injector Circuit High | Check the fuel injectors -N32-. Refer to FUEL INJECTORS, CHECKING . | Signal current > 14.70 A | Injection valve, Commanded on Engine speed, > 80 RPM | 0.5 Sec. | 2 DCY |
| P0270 | Cylinder 4 Injector Circuit Low | Check the fuel injectors -N33-. Refer to FUEL INJECTORS, CHECKING . | Low side signal current < 2.1 A | Injection valve, Commanded on Engine speed, > 80 RPM High side signal current, > 4.20 A | 0.5 Sec. | 2 DCY |
| P0271 | Cylinder 4 Injector Circuit High | Check the fuel injectors -N33-. Refer to FUEL INJECTORS, CHECKING . | Signal current > 14.70 A | Injection valve, Commanded on Engine speed, > 80 RPM | 0.5 Sec. | 2 DCY |
| P0299 | Turbocharger Underboost | Check the charge air system for proper seal. Refer to the Repair Instructions.-- Check the Charge Air Pressure sensor -G31-. Refer to CHARGE AIR PRESSURE SENSOR, CHECKING | Difference of set boost pressure vs actual boost pressure value > 150 hPa | Engine speed > 2200 - 2800 RPM Altitude < 2700 m Difference of set value boost pressure vs basic boost pressure value > 250 hPa Boost pressure control active Turbo charger bypass valve closed | 6 Sec. | 2 DCY |
| 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 fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Emission threshold 1st interval Misfire Rate (MR), > 2.1% Catalyst damage misfire rate (MR), > 2.9% - 20% | Active after engine start Engine speed 440 - 6800 RPM IAT > -48 °C ECT > -10.5 °C Not in fuel cutoff mode Rough road not detected No internal CAN fault | 1000 Rev. 200 Rev. | 2 DCY Immediate |
| P0301 | Cylinder 1 Misfire Detected | Check the Spark plugs.-- Check the intake system for leaks.-- Check fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Emission threshold 1st interval Misfire Rate (MR), > 2.1% Catalyst damage misfire rate (MR), > 2.9% - 20% | Time from start, 0 Sec. IAT, >-48° C Time after engine start, Idle - 150 RPM Engine torque, >5.47-23.4% Camshaft revolutions 1 Engine speed range, 480-6800 RPM Fuel cutoff, Not active ECT at start, > -9° C If ECT at start < -99° C wait until actual ECT >18° C | 1000 Rev. 200 Rev. | 2 DCY Immed. |
| P0302 | Cylinder 2 Misfire Detected | Check the Spark plugs.-- Check the intake system for leaks.-- Check fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Emission threshold 1st interval Misfire Rate (MR), > 2.1% Catalyst damage misfire rate (MR), > 2.9% - 20% | Time from start, 0 Sec. IAT, > -48° C Time after engine start, Idle - 150 RPM Engine torque, > 5.47-23.4% Camshaft revolutions 1 Engine speed range, 480-6800 RPM Fuel cutoff, Not active ECT at start, > -9° C If ECT at start < -99° C wait until actual ECT > 18° C | 1000 Rev. 200 Rev. | 2 DCY Immed. |
| P0303 | Cylinder 3 Misfire Detected | Check the Spark plugs.-- Check the intake system for leaks.-- Check fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Emission threshold 1st interval Misfire Rate (MR), > 2.1% Catalyst damage misfire rate (MR), > 2.9% - 20% | Time from start, 0 Sec. IAT, > -48° C Time after engine start, Idle - 150 RPM Engine torque, > 5.47-23.4% Camshaft revolutions 1 Engine speed range, 480-6800 RPM Fuel cutoff, Not active ECT at start, > -9° C If ECT at start < -99° C wait until actual ECT > 18° C | 1000 Rev. 200 Rev. | 2 DCY Immed. |
| P0304 | Cylinder 4 Misfire Detected | Check the Spark plugs.-- Check the intake system for leaks.-- Check fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING -- Check the Ignition Coils with Power Output Stage -N70, N127, N291, N292-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Emission threshold 1st interval Misfire Rate (MR), > 2.1% Catalyst damage misfire rate (MR), > 2.9% - 20% | Time from start, 0 Sec. IAT, > -48° C Time after engine start, Idle - 150 RPM Engine torque, > 5.47-23.4% Camshaft revolutions 1 Engine speed range 480-6800 RPM Fuel cutoff Not active ECT at start > -9° C If ECT at start < -99° C wait until actual ECT > 18° C | 1000 Rev. 200 Rev. | 2 DCY Immed. |
| P0321 | Engine Speed Input Circuit Range/Performance | Check the Engine Speed (RPM) Sensor -G28-. Refer to ENGINE SPEED SENSOR, CHECKING . | Comparison of counted teeth vs reference = incorrect monitoring reference gap failure | 2 Sec. | 2 DCY | |
| P0322 | Engine Speed Input Circuit No Signal | Check the Engine Speed (RPM) Sensor -G28-.. ENGINE SPEED SENSOR, CHECKING . | Camshaft signal > 3 Engine speed, no signal | 2 Sec. | 2 DCY | |
| P0324 | Knock Control System Error | Check theKnock Sensors -G61, G66-. Refer to KNOCK SENSOR 1, CHECKING . | Signal fault counter (combustion) > 24 or Signal fault counter (measuring window) > 2.00 | Engine speed > 2500 RPM | 0.5 Sec. | 2 DCY |
| P0327 | Knock Sensor 1 Circuit Low Input (Bank 1) | Check theKnock Sensors -G61, G66-. Refer to KNOCK SENSOR 1, CHECKING . | Lower threshold < -70 V or for signal range check Lower threshold < 0.6 - 1.6 V | Engine speed, > 1000 RPM or for signal range check ECT > 41 °C Engine load > 22.734 - 55.172% Engine speed > 2000 RPM | 0.5 Sec. | 2 DCY |
| P0328 | Knock Sensor 1 Circuit High Input (Bank 1) | Check theKnock Sensors -G61, G66-. Refer to KNOCK SENSOR 1, CHECKING . | Upper threshold > 1.00 V or for signal range check > 21.7 - 115.9 V | Engine speed, > 1000 RPM or for signal range check ECT > 41 °C Engine load > 35.3 - 60% Engine speed > 2000 RPM | 0.5 Sec. | 2 DCY |
| P0340 | Camshaft Position Sensor Circuit (Bank 1 or single sensor) | Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING . | Cam adaption values out of range > 20 °KW < -20 °KW Difference of adapted and actual values > 9 °KW | Engine speed sensor, No DTC Phase sensor, No DTC Cam adaptation, Active Engine speed sensor, No DTC Phase sensor, No DTC Camshaft adjustment, No DTC Engine start, Completed Cam adaptation, Completed Camshaft in ref pos. for > 2 sec. | 2 Sec. | 2 DCY |
| P0341 | Camshaft Position Sensor Circuit Range/Performance (Bank 1 or single sensor) | Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING . | Signal pattern incorrect | 0.5 Sec. | 2 DCY | |
| P0342 | Camshaft Position Sensor Circuit Low Input (Bank 1 or single sensor) | Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING . | Signal voltage permanently low Crankshaft signals = 8 | 0.5 Sec. | 2 DCY | |
| P0343 | Camshaft Position Sensor Circuit High Input (Bank 1 or single sensor) | Check the Camshaft Position (CMP) Sensor -G40-. Refer to CAMSHAFT POSITION SENSOR, CHECKING . | Signal voltage permanently high Crankshaft signals = 8 | 0.5 Sec. | 2 DCY | |
| P0351 | Ignition Coil 1 Primary/Secondary Circuit | Check the Ignition Coils with Power Output Stage -N70-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal current -0.25 to -2.0 mA Internal check failed | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| P0352 | Ignition Coil 2 Primary/Secondary Circuit | Check the Ignition Coils with Power Output Stage -N127-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal current -0.25 to -2.0 mA Internal check failed | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| P0353 | Ignition Coil 3 Primary/Secondary Circuit | Check the Ignition Coils with Power Output Stage -N291-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal current -0.25 to -2.0 mA Internal check failed | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| P0354 | Ignition Coil 4 Primary/Secondary Circuit | Check the Ignition Coils with Power Output Stage -N292-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal current -0.25 to -2.0 mA Internal check failed | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illum |
|---|---|---|---|---|---|---|
| 3P0420 | Catalyst System Efficiency Below Threshold | Check the Three Way Catalytic Converter (TWC). Refer to THREE WAY CATALYTIC CONVERTER, TWC CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING -- Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-. Refer to OXYGEN SENSOR REGULATION BEHIND CATALYTIC CONVERTER, CHECKING . | Front: Oxygen storage capacity (OSC) vs OSC of borderline catalyst < 0.40 Front catalyst< 1.30 Main catalyst < 1.20 Main: Oxygen storage capacity (OSC) vs OSC of borderline catalyst < 0.40 Front catalyst<.90 while value for front catalyst < 2.00 | Front: Time after engine start > 0 Sec. Delta exhaust mass flow < 27.1 kg/h Exhaust gas mass flow, lower range 25.0 - 80.0 kg/h Exhaust gas mass flow upper range 60.0 - 160.0 kg/h Modeled exhaust gas temp, lower range 490 - 660 °C Modeled exhaust gas temp, upper range 640 - 780 °C Engine speed 1200 - 3520 RPM Number of checks, 4 O2S front/rear, ready/no faults SAS, not active No misfire Main: Time after engine start > 80 Sec. Delta exhaust mass flow < 30 kg/h Exhaust gas mass flow, lower range 25.0 - 80.0 kg/h Exhaust gas mass flow upper range 60.0 - 160.0 kg/h Modeled exhaust gas temp, lower range 435 - 660 °C Modeled exhaust gas temp, upper range 530 - 740 °C Engine speed 1200 - 3520 RPM Number of checks, 4 O2S front/rear, ready/no faults SAS, not active No misfire | 50 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 EMISSION CANISTER PURGE REGULATOR VALVE, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING . | Deviation < 0.07% lambda controller and 35% idle controller | Evap purge flow integral 25 - 120 g Integrated air mass 5.5 - 6.5 kg Engine speed = idle Engine speed deviation 80 RPM ECT > 65.3 °C or substitute 80.3 °C IAT > 3.8 °C Altitude < 2700 m Lambda control, closed loop | 25 Sec. | Once/ DCY 2 DCY |
| P0442 | Evaporative Emission System Leak Detected (Small Leak) | Check the EVAP System, for Leaks. Refer to EVAP SYSTEM, CHECKING FOR LEAKS -- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING . | Time for pressure drop < 1.55 - 1.75 Sec. | Time after engine start 5 - 65530 Sec. ECT 3.8 - 120 °C ECT at start 3.8 - 50.3 °C Engine off time > 21600 Sec. Ambient air temp 3.8 - 59.3 °C Ambient air temp drop after start < 7.5 °K Intake manifold vac. > -2560 hPa Altitude < 2700 m Veh. speed >= 0 Veh speed once > 40 km/h Any drive gear Restart temp diff. > 0 °K Purge valve closed LDP active | 180 Sec. once/DCY | 2 DCY |
| P0444 | Evaporative Emission System Purge Control Valve Circuit Open | Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE, CHECKING . | Signal voltage > 4.40 - 5.40 V | EVAP purge valve Commanded Off Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P0455 | Evaporative Emission System Leak Detected (gross leak/no flow) | Check the EVAP System, for Leaks. Refer to EVAP SYSTEM, CHECKING FOR LEAKS -- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING . | Time for pressure drop < 0.95 Sec. | Time after engine start 5 - 65530 Sec. ECT 3.8 - 120 °C ECT at start 3.8 - 50.3 °C Engine off time > 21600 Sec. Ambient air temp 3.8 - 59.3 °C Ambient air temp drop after start < 12.5 °K Intake manifold vac. > -2560 hPa Altitude < 2700 m Veh. speed >= 0 Veh speed once > 40 km/h Any drive gear Restart temp diff. > 0 °K Purge valve closed LDP active | 120 Sec. | 2 DCY |
| P0456 | Evaporative Emission System Leak Detected (very small leak) | Check the EVAP System, for Leaks. Refer to EVAP SYSTEM, CHECKING FOR LEAKS -- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to LEAK DETECTION PUMP, CHECKING . | Time for pressure drop, < 4.5 - 6.0 Sec. | Time after engine start 5 - 1000 Sec. ECT 3.8 - 120 °C ECT at start 3.8 - 50.3 °C Engine off time > 21600 Sec. Ambient air temp 3.8 - 59.3 °C Ambient air temp drop after start < 4.5 °K Intake manifold vac. > -2560 hPa Intake manifold vac. > -2560 hPa Altitude < 2700 m Veh. speed >= 0 Veh speed once > 40 km/h Any drive gear Restart temp diff. > 0 K Purge valve closed LDP active | 180 Sec. once/DCY | 2 DCY |
| P0458 | Evaporative Emission System Purge Control Valve Circuit Low | Check the Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE, CHECKING . | Signal voltage 2.15 - 3.25 V | EVAP purge valve, Commanded off Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P0459 | Evaporative Emission System Purge Control Valve Circuit High | Check the Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE, CHECKING . | Signal current > 2.2 A | EVAP purge valve, Commanded On Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illum |
|---|---|---|---|---|---|---|
| P050A | Cold Start Idle Air Control System Performance | 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 Sec. Driver torque demand - none Veh speed 0 km/h Altitude < 2700 m IAT > -48.0 °C Catalyst heating active | 3 to 4 Sec. | 2 DCY |
| P0501 | Vehicle Speed Sensor Range/Performance | Check vehicle speed signal. Refer to SPEED SIGNAL, CHECKING . | VSS signal < 6 km/h | Engine torque > 120 Nm Engine speed > 2800 RPM VSS no fault | 10.5 Sec. | 2 DCY |
| P0503 | Vehicle Speed Sensor Intermittent/Erratic/High | Check vehicle speed signal. Refer to SPEED SIGNAL, CHECKING . | Vehicle speed > 290 km/h | 0.5 Sec. | 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 . | Idle speed Deviation < -80 RPM and RPM controller torque value >= calculated max. value OR Integrated deviation of engine speed low and engine speed high > 2000 RPM | Vehicle speed 0 MPH Altitude < 2700 m IAT, > -48 °C ECT, > -48 °C Time after engine start > 0 Sec. External torque request not demanded Engine speed = idle | 3 to 4 Sec. | 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 . | Idle speed Deviation > 80 RPM and RPM controller torque value <= calculated min. value | Vehicle speed 0 MPH Altitude < 2700 m IAT, > -48 °C ECT, > -48 °C Time after engine start > 0 Sec. External torque request not demanded Engine speed = idle | 7 Sec. | 2 DCY |
| P052A | Cold Start Camshaft Position Timing Over-Advanced | Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT ADJUSTMENT VALVE 1, CHECKING . | Difference between target vs. actual position > ° 6 CRK | Time after engine start >= 15 Sec. Engine speed >= 0 RPM Modelled oil temperature >= -13 °C Catalyst heating active | 5 Sec. | 2 DCY |
| P053F | Cold Start Fuel Pressure Performance | Check the Fuel Pressure. Refer to FUEL PRESSURE TEST | Difference between target vs. actual pressure < -1.50 OR > 1.50 MPa | Time after engine start 3 Sec. Fuel cutoff not active | 3.5 Sec. | 2 DCY |
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illum |
|---|---|---|---|---|---|---|
| P0606 | ECM Processor Fault | Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the Repair Instructions. | ECM internal check failure | Key on or engine running | 2 Sec. | 2 DCY Continuous |
| P062B | Internal Control Module Fuel Injector Control Performance | Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the Repair Instructions. | Internal logic failure | Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P0638 | Throttle Actuator Control Range/Performance - Bank 1 | Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING . | Time to close to reference point > 0.6 Sec. and reference point 2.88% Time to close below reference point, + 2.49%, > 0.56 Sec. Duty cycle > 80% ECM power stage no failure | Ignition on Engine speed 0 RPM IAT > 5.25° C Vehicle speed 0 km/h ECT > 5.3 °C IAT > 5.3 °C | 0.3 to 5 Sec. | 2 DCY |
| P0641 | Sensor Reference Voltage A Circuit Open | Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the Repair Instructions. | Signal voltage deviation > +/- 0.3 V | 0.5 Sec. | 2 DCY | |
| P0651 | Sensor Reference Voltage B Circuit Open | Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the Repair Instructions. | Signal voltage deviation > +/- 0.3 V | 0.5 Sec. | 2 DCY | |
| P0657 | Actuator Supply Voltage Circuit Open | Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY, CHECKING . | Signal voltage, > 4.4 - 5.6 V | Relay, commanded off Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P0658 | Actuator Supply Voltage Circuit Low | Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY, CHECKING . | Signal voltage, < 2.15 - 3.25 V | Relay, commanded off Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P0659 | Actuator Supply Voltage Circuit High | Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY, CHECKING . | Signal current > 1.1 A | Relay, commanded on Engine speed > 80 RPM Battery voltage test counter, 9.04-16 V > 3 | 0.5 Sec. | 2 DCY |
| P0697 | Sensor Reference Voltage C Circuit Open | Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the Repair Instructions. | Signal voltage deviation > +/- 0.3 V | 0.5 Sec. | 2 DCY |
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illum |
|---|---|---|---|---|---|---|
| P12A1 | Fuel Rail Pressure Sensor Inappropriately Low | Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING . | Pressure control activity > 2.50 MPa Fuel trim activity < 0.80 Difference between actual pressure vs target pressure -16.38 to 16.38 MPa | Engine speed > 600 RPM EVAP purge adaption < 22.0 Lambda control closed loop Fuel cutoff not active | 5 Sec. | 2 DCY |
| P12A2 | Fuel Rail Pressure Sensor Inappropriately High | Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING . | Pressure control activity < -0.05 MPa Fuel trim activity > 1.30 Difference between target pressure and actual pressure -16.38 to 16.38 MPa | Engine speed > 600 RPM EVAP purge adaption < 22.0 Lambda control closed loop Fuel cutoff not active | 5 Sec. | 2 DCY |
| P12A4 | Fuel Rail Pump Control Valve Stuck Closed | Check the Fuel Pressure Regulator Valve -N276-. Refer to FUEL PRESSURE REGULATOR VALVE, CHECKING . | Fuel trim activity.90 to 1.15 Pressure control activity < -6 MPa System Deviation < 16.38 MPa | Engine speed > 600 RPM EVAP purge adaption < 22.0 Lambda control closed loop Fuel cutoff not active | 5 Sec. | 2 DCY |
| P150A | Engine Off Timer Performance | Check for related TSB's. If none apply; check the power and ground inputs to the ECM BEFORE replacing ECM. Lack of ignition off power supply will cause the timer to stop. Refer to the Wiring Diagrams for power and ground locations to the ECM. If power and grounds are present;-- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the Repair Instructions. | Difference between engine off time and ECM after run time < -12 Sec. or > 12 Sec. | Key on after ECM after run time active Key on during ECM after run time active CAN active | 6.0 Sec. | 2 DCY |
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illum |
|---|---|---|---|---|---|---|
| P2008 | Intake Manifold Runner Control Circuit Open | Check the Intake Manifold Runner Control (IMRC) Valve -N316-. Refer to INTAKE MANIFOLD RUNNER CONTROL VALVE, CHECKING . | Signal voltage 4.40 - 5.60 V | Tumble flap commanded off Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P2009 | Intake Manifold Runner Control Circuit Low | Check the Intake Manifold Runner Control (IMRC) Valve -N316-. Refer to INTAKE MANIFOLD RUNNER CONTROL VALVE, CHECKING . | Signal voltage 3.25 - 2.15 V | Tumble flap commanded off Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P2010 | Intake Manifold Runner Control Circuit High | Check the Intake Manifold Runner Control (IMRC) Valve -N316-. Refer to INTAKE MANIFOLD RUNNER CONTROL VALVE, CHECKING . | Signal current > 2.20 A | Tumble flap commanded on Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P2014 | Intake Manifold Runner Position Sensor Circuit Bank 1 | Check the Intake Manifold Runner Position Sensor -G336-. Refer to INTAKE MANIFOLD RUNNER POSITION SENSOR, CHECKING . | Signal voltage > 4.75 V | 0.3 Sec. | 2 DCY | |
| P2015 | Intake Manifold Runner Position Sensor Circuit Range/Performance Bank 1 | Check the Intake Flap Motor -V157- /Intake Manifold Runner Position Sensor -G336-. Refer to INTAKE MANIFOLD RUNNER POSITION SENSOR, CHECKING . | Deviation runner flap target position vs actual position > 25% | 1.5 Sec. | 2 DCY | |
| P2016 | Intake Manifold Runner Position Sensor Circuit Low (Bank 1) | Check the Intake Manifold Runner Position Sensor -G336-. Refer to INTAKE MANIFOLD RUNNER POSITION SENSOR, CHECKING . | Signal voltage < 0.25 V | 0.3 Sec. | 2 DCY | |
| P2088 | A Camshaft Position Actuator Control Circuit Low Bank 1 | Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT POSITION SENSOR, CHECKING . | Signal voltage, < 2.15 - 3.25 V | Camshaft valve off Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P2089 | A Camshaft Position Actuator Control Circuit High Bank 1 | Check the Camshaft Adjustment Valve 1 -N205-. Refer to CAMSHAFT POSITION SENSOR, CHECKING . | Signal current > 2.2 A | Camshaft valve on Engine speed > 80 RPM | 0.5 Sec. | 2 DCY |
| P2096 | Post Catalyst Fuel Trim System Too Lean Bank 1 | Check Heated Oxygen Sensor (HO2S) -G130- behind Three Way Catalytic Converter (TWC). Refer to OXYGEN SENSOR REGULATION BEHIND CATALYTIC CONVERTER, CHECKING | Deviation lambda control < -0.03 | Modeled exhaust gas temp 400 to 880 °C Exhaust gas mass flow 20 to 180 kg/h Exhaust mass air integral >.28 to 5 kg Lambda control in closed loop, not at min or max limit O2S front ready, no DTC O2S rear ready, no DTC O2 heaters active Not in fuel cutoff, SAI off Catalyst heating not active | 140 Sec. | 2 DCY |
| P2097 | Post Catalyst Fuel Trim System Too Rich Bank 1 | Check Heated Oxygen Sensor (HO2S) -G130- behind Three Way Catalytic Converter (TWC). Refer to OXYGEN SENSOR REGULATION BEHIND CATALYTIC CONVERTER, CHECKING | Integral part of lambda control > 0.03% | Modeled exhaust gas temp 400 to 880 °C Exhaust gas mass flow 20 to 180 kg/h Exhaust mass air integral >.28 to 5 kg Lambda control in closed loop, not at min or max limit O2S front ready, no DTC O2S rear ready, no DTC O2 heaters active Not in fuel cutoff, SAI off Catalyst heating not active | 140 Sec. | 2 DCY |
| 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 > 80% Deviation throttle value angles vs. calculated value 4 - 50% ECM power stage no failure | 0.5 to 5 Sec. | 2 DCY | |
| P2106 | Throttle Actuator Control System - Forced Limited Power | Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE, CHECKING . | Internal check failed | Duty cycle > 80% or deviation throttle value angles vs. calculated value > 4 - 50% | 0.5 to 5 Sec. | 2 DCY |
| P2122 | Throttle/Pedal Position Sensor 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 < 0.6 V | 0.5 Sec. | 2 DCY | |
| P2123 | Throttle/Pedal Position Sensor 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 > 4.8 V | 0.5 Sec. | 2 DCY | |
| P2127 | Throttle/Pedal Position Sensor 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 < 0.27 V | 0.5 Sec. | 2 DCY | |
| P2128 | Throttle/Pedal Position Sensor 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 > 2.43 V | 0.5 Sec. | 2 DCY | |
| P2138 | Throttle/Pedal Position Sensor D/E Voltage Correlation | 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: Difference between signal APP1 and APP2 > 0.17 - 0.70 V | Signal voltage sensor 1 > 445.0 mv Signal voltage sensor 2 > 445.0 mv | 0.5 Sec. | 2 DCY |
| P2146 | Fuel Injector Group A Supply Voltage Circuit Open | Check the Fuel injectors -N30, N31, N32, N33-. Refer to FUEL INJECTORS, CHECKING . | Signal current, < 2.6 A or Signal current > 14.90 A | Injection valve, commanded on Engine speed > 80 RPM or Low side signal current >2.70 A | 0.5 Sec. | 2 DCY |
| P2149 | Fuel Injector Group B Supply Voltage Circuit Open | Check the Fuel injectors -N30, N31, N32, N33-. Refer to FUEL INJECTORS, CHECKING . | Signal current, < 2.6 A or Signal current > 14.90 A | Injection valve, commanded on Engine speed > 80 RPM or Low side signal current >2.70 A | 0.5 Sec. | 2 DCY |
| P2177 | System too lean off idle, Bank 1 | Check the fuel pressure --. Refer to FUEL PRESSURE TEST -- Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING -- Check the fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G465-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING . | Adaptive value > 28% | Engine speed 1280 to 6000 RPM Engine load 20 to 100% MAF 30 to 450 kg/h ECT > 63 °C IAT < 90 °C O2 ready, closed loop EVAP purge valve closed | 10 Sec. | 2 DCY |
| P2178 | System too rich off idle, Bank 1 | Check the fuel pressure --. Refer to FUEL PRESSURE TEST -- Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING -- Check the fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G465-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE, CHECKING . | Adaptive value < -21% | Engine speed 1280 to 6000 RPM Engine load 20 to 100% MAF 30 to 450 kg/h ECT > 63 °C IAT < 90 °C O2 ready, closed loop EVAP purge valve closed | 10 Sec. | 2 DCY |
| P2181 | Cooling System Performance | Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR 1 OR 2 CHECKING -- Check the Coolant Pump -V50- Refer to the Repair Instructions.-- Check the Coolant Thermostat. Refer to the Repair Instructions. | Cooling system temperature too low after a sufficient mass air flow integral 74 - 84 °C | Begin of air mass integration when engine temp > 30 °C ECT at start, - 6.7 - 64.5 °C Ambient air temp -6.7 °C Fuel cutoff not active and engine load 0 - 400% Delta ambient pressure < 1.5 kPa Integrated air mass depending on engine temp at start and ambient air temperature 3.2 - 23.8 kg/h Accumulated fuel cutoff < 40 - 250 Sec. At time of fault decision Average mass air flow 20 - 154 kg/h Average veh. speed 33.4 - 120 km/h | 2 Sec. | 2 DCY |
| P2184 | Engine Coolant Temperature Sensor 2 Circuit Low | Check the Engine Coolant Temperature (ECT) Sensor -G83-. Refer to ENGINE COOLANT TEMPERATURE SENSOR 1 OR 2 CHECKING . | ECT outlet > 141 °C | 2 Sec. | 2 DCY | |
| P2185 | Engine Coolant Temperature Sensor 2 Circuit High | Check the Engine Coolant Temperature (ECT) Sensor -G83-. Refer to ENGINE COOLANT TEMPERATURE SENSOR 1 OR 2 CHECKING . | ECT outlet < -43 °C | 2 Sec. | 2 DCY | |
| P2187 | System too lean at idle, Bank 1 | Check the intake system for leaks (false air).-- Check the vacuum lines for leaks-- Check the fuel pressure --. Refer to FUEL PRESSURE TEST -- Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING -- Check the fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G465-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING . | Adaptive value > 5.02% | Engine speed < 1200 RPM Engine load < 9 to 45% MAF < 5 to 26 kg/h ECT > 63 °C IAT < 90 °C Delta part load adaptation ready O2 ready, in closed loop | 35 Sec. | 2 DCY |
| P2188 | System too rich at idle, Bank 1 | Check the fuel pressure --. Refer to FUEL PRESSURE TEST -- Check the Fuel Pressure Sensor -G247-. Refer to FUEL PRESSURE SENSOR, CHECKING -- Check the fuel injectors -N30, N31, N32, N33, -. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor (HO2S) -G465-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE, CHECKING . | Adaptive value < -5.02% | Engine speed < 1200 RPM Engine load < 9 to 45% MAF < 5 to 26 kg/h ECT > 63 °C IAT < 90 °C Delta part load adaptation ready O2 ready, in closed loop | 35 Sec. | 2 DCY |
| P2195 | O2 Sensor Signal Biased/Stuck Lean - Bank 1, Sensor 1 | Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING | Delta lambda of 2nd lambda control loop > 0.07 | Modeled exhaust gas temp 400 - 880 °C Delta engine load < 20% Exh. gas mass flow 20 - 180 kg/h Exhaust mass air integral 0.28 - 5.0kg Lambda control, 2nd lambda control, closed loop O2S front, rear and heaters ready - no fault Fuel cutoff, catalyst heating, SAI - not active 1st lambda control loop not at min or max 2nd lambda control loop active | 140 Sec. | 2 DCY |
| P2196 | O2 Sensor Signal Biased/Stuck Rich - Bank 1, Sensor 1 | Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING | Delta lambda of 2nd lambda control loop < -0.07 | Modeled exhaust gas temp 400 - 880 °C Delta engine load< 20% Exh. gas mass flow 20 - 180 kg/h Exhaust mass air integral 0.28 - 5.0kg Lambda control, 2nd lambda control, closed loop O2S front, rear and heaters ready - no fault Fuel cutoff, catalyst heating, SAI - not active 1st lambda control loop not at min or max 2nd lambda control loop active | 140 Sec. | 2 DCY |
| P2231 | O2 Sensor Bank 1 Sensor 1 Signal Circuit Shorted to Heater Circuit | Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING -- Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR HEATER BEFORE CATALYTIC CONVERTER, CHECKING . | Delta O2S signal front > 190 uA | Engine speed, < 2700 RPM Engine load < 60% Heater duty cycle, 20 - 80% Modeled exhaust gas temp < 800.1 °C lambda 0.95 - 1.05 Heater control, closed loop, no fault | 15 Sec. | 2 DCY |
| P2237 | O2 Sensor Positive Current Control Circuit / Open - Bank 1, Sensor 1 | Check the Oxygen Sensor (HO2S) Heater -G39-. Refer to OXYGEN SENSOR HEATER BEFORE CATALYTIC CONVERTER, CHECKING . | O2S signal front 1.493 - 1.507 V OR O2S signal front < 1.7002 V Fuel cutoff < 3 sec. OR O2S signal front 1.50 - 1.51 V Delta lambda controller > 0.10 | O2S ceramic temp, 715 °C Lambda control, Closed loop Mass air integral 0.8 kg Lambda set value 0.97 - 1.03 Electrical adjustment, Not active Heater control active EVAP purge valve ready, no fault Lambda modulation > 0.02 | 1.5 Sec. to 5 Sec. | 2 DCY |
| P2243 | O2 Sensor Reference Voltage Circuit / Open - Bank 1, Sensor 1 | Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING | O2S signal front < 0.30 V and Internal resistance > 1000 Ohm O2S signal front > 4.70 V and Internal resistance > 1000 Ohm | Heater control active | 3 Sec. | 2 DCY |
| P2251 | O2 Sensor Negative Current Control Circuit Bank 1 Sensor 1 open | Check the Oxygen Sensor (HO2S) Heater -G39-. Refer to OXYGEN SENSOR HEATER BEFORE CATALYTIC CONVERTER, CHECKING . | O2S signal front 1.47 to 1.53 V Internal resistance > 1000 Ohm | Modeled exhaust gas temp < 700 °C No fuel cutoff > 2 Sec. Heater control active | 25 Sec. | 2 DCY |
| P2270 | O2 Sensor Signal Stuck Lean Bank 1 Sensor 2 | Check the Heated Oxygen Sensor (HO2S) -G130-. Refer to OXYGEN SENSOR REGULATION BEHIND CATALYTIC CONVERTER, CHECKING | O2S signal rear < 0.603 V | Mass air flow > 25 to 150 kg/h Modeled exhaust gas temp > 350 °C O2 rear ready > 10 Sec. and closed loop | 250 Sec. | 2 DCY |
| P2271 | O2 Sensor Signal Stuck Rich Bank 1 Sensor 2 | Check the Heated Oxygen Sensor (HO2S) -G130-. Refer to OXYGEN SENSOR REGULATION BEHIND CATALYTIC CONVERTER, CHECKING | Measurement range from fuel cutoff to voltage threshold <= 191 mV Response time at fuel cutoff > 8 Sec. Number of checks = > 1 | Mass air flow > 25 to 150 kg/h Modeled exhaust gas temp > 350 °C O2 front/rear ready > 10 Sec. and closed loop EVAP purge valve diagnosis ready | 10 to 250 Sec. | 2 DCY |
| P2279 | Intake Air System Leak | Check for air leaks between MAF and throttle body, oil fill cap not seated or oil dipstick not seated in tube. Also any engine gaskets that can cause additional air to enter the crankcase can set this fault. If a vacuum leak or crankcase seal is at cause, the idle may be rough or unstable. | Threshold to detect a defective system > 1.33 - 1.60 | Time after engine start > 60 Sec. Engine load < 40% Mass air flow < 6553.50 kg/h ECT > 49.50 °C IAT < 99.80 °C Lambda control value >.95 Lambda set value.95 - 1.05 Veh speed < 1 km/h Lambda control active Engine speed - idle Altitude < 2700 m O2S front - no fault | 23 Sec. | 2 DCY |
| P2293 | Fuel Pressure Regulator 2 Performance | Check the Fuel Pressure Regulator Valve -N276-. Refer to FUEL PRESSURE REGULATOR VALVE, CHECKING . | Difference between target pressure vs actual pressure: > 1.50 MPa OR < -1.50 MPa | Time after engine start 10 Sec. | 3.5 Sec. | 2 DCY |
| P2294 | Fuel Pressure Regulator 2 Control Circuit | Check the Fuel Pressure Regulator Valve -N276-. Refer to FUEL PRESSURE REGULATOR VALVE, CHECKING . | Signal voltage 2.3 - 2.7 V OR Signal pattern incorrect | Fuel control valve, Commanded Off Fuel pump, Commanded On | 1 Sec. | 2 DCY |
| P2295 | Fuel Pressure Regulator 2 Control Circuit Low | Check the Fuel Pressure Regulator Valve -N276-. Refer to FUEL PRESSURE REGULATOR VALVE, CHECKING . | Signal voltage 1.8 - 2.2 V | Fuel control valve, Commanded Off | 1 Sec. | 2 DCY |
| P2296 | Fuel Pressure Regulator 2 Control Circuit High | Check the Fuel Pressure Regulator Valve -N276-. Refer to FUEL PRESSURE REGULATOR VALVE, CHECKING . | Signal voltage > 3.9 V | Fuel control valve, Commanded On | 1 Sec. | 2 DCY |
| 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 COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal current > 24.0 mA | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| P2301 | Ignition Coil A Primary Control Circuit High | Check the Ignition Coils with Power Output Stage -N70-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal current > 5.1 - 7.0 mA | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| P2303 | Ignition Coil B Primary Control Circuit Low | Check the Ignition Coils with Power Output Stage -N127-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal current > 24.0 mA | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| P2304 | Ignition Coil B Primary Control Circuit High | Check the Ignition Coils with Power Output Stage -N127-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal current > 5.1 - 7.0 mA | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| P2306 | Ignition Coil C Primary Control Circuit Low | Check the Ignition Coils with Power Output Stage -N291-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal current > 24.0 mA | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| P2307 | Ignition Coil C Primary Control Circuit High | Check the Ignition Coils with Power Output Stage -N291-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal voltage > 5.1 - 7.0 mA | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| P2309 | Ignition Coil D Primary Control Circuit Low | Check the Ignition Coils with Power Output Stage -N292-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal current > 24.0 mA | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| P2310 | Ignition Coil D Primary Control Circuit High | Check the Ignition Coils with Power Output Stage -N292-. Refer to IGNITION COILS WITH POWER OUTPUT STAGE, CHECKING . | Signal voltage > 5.1 - 7.0 mA | Engine speed > 680 RPM | 0.5 Sec. | 2 DCY |
| 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 voltage > 4.4 - 5.6 V | LDP Commanded off Engine speed, 80 RPM | 0.5 Sec. | 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 > 2.15 - 3.25 V | LDP Commanded Off Engine speed, 80 RPM | 0.5 Sec. | 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 > 1.1 A | LDP Commanded On Engine speed, 80 RPM | 0.5 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 >.5 Sec. | Time after engine start 5.0 - 65530 ECT 3.8 - 120 °C ECT at start 3.8 - 50.3 °C Engine off time > 21600 Altitude < 2700 m Integrated purge flow 12.1 g Restart temp diff > 0 °K Veh speed >= 0 km/h Veh speed once > 40 km/h Any drive gear EVAP purge valve ready, no faults LDP commanded off | 0 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 > 30.4 Sec. | Time after engine start 5.0 - 65530 ECT 3.8 - 120 °C ECT at start 3.8 - 50.3 °C Engine off time > 21600 Ambient air temp 3.8 - 59.3 °C Altitude < 2700 m Integrated purge flow 12.1 g Restart temp diff > 0 °K Veh speed >= 0 km/h Veh speed once > 40 km/h Any drive gear EVAP purge valve ready, no faults LDP commanded off | 35 Sec. | Once/DCY 2 DCY |
| P2414 | O2 Sensor Exhaust Sample Error Bank 1, Sensor 1 | Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING . | Threshold 1 Signal voltage 3.1 - 4.81 V O2S signal 2.5 - 3.2 V Threshold 2 Signal voltage 2.5 V O2S signal 2.5 - 3.1 V | Lambda set value 1 Fuel cut off, Not active Heater control, closed loop SAI not active O2S ceramic temp > 715 °C If low fuel signal then wait > 600 Sec. | 15 Sec. | 2 DCY |
| P2626 | O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1 | Check the Heated Oxygen Sensor (HO2S) -G39-. Refer to OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER, CHECKING . | O2S signal front > 4.81 V | Modeled exhaust temp < 700 °C O2S ceramic temp, 715 °C Fuel cut off, Active Heater control closed loop No low fuel signal | 1.5 Sec. | 2 DCY |
| 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 the Engine Coolant Temperature (ECT) Sensor -G62-. Refer to ENGINE COOLANT TEMPERATURE SENSOR 1 OR 2 CHECKING .-- Check for a stuck open thermostat. Refer to the Repair Instructions. | Difference between ECT and modeled ECT > 10 °K | Max reference temperature 60 °C | 4 Sec. | 2 DCY |
| 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 . | Bus Off failure or CAN message = no feedback | Time after ignition on 500 mSec. | 250 mSec. | 2 DCY |
| U0002 | High Speed CAN Communication Bus Performance | Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING . | Global Time Out failure or receiving no messages | Time after ignition on 500 mSec. Battery voltage < 9.5 V Battery voltage > 16 V | 450 mSec. | 2 DCY |
| 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, SELECTOR LEVER TO MOTRONIC ENGINE CONTROL MODULE, CHECKING . | Time Out failure. No message received by ECM | Time after ignition on 500 mSec. | 500 mSec. | 2 DCY |
| U0121 | Lost Communication With Anti-Lock Brake System (ABS) Control Module | Check to see if any other modules have set a loss of communication with the ABS module fault. If other modules can communicate with ABS and ECM cannot, the ECM may be at fault. If other modules have set an ABS communication error, refer to the service instructions for the ABS communication diagnosis. | CAN communication with ABS Time Out. | Time after ignition on 500 mSec. Battery voltage < 9.5 V Battery voltage > 16 V | 0.5 Sec. | 2 DCY |
| U0146 | Lost Communication With Gateway A | Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING . | CAN communication with gateway Time Out | 0.5 Sec. | 2 DCY | |
| U0155 | Lost Communication With Instrument Panel Cluster (IPC) Control Module | No IPC CAN messages received | Time after ignition on 500 mSec. | 500 mSec. | 2 DCY | |
| U0302 | Software Incompatibility with Transmission Control Module | Check for any applicable TSB's. If none pertain to this fault:-- Replace the Direct Shift Gearbox (DSG) Mechatronic -J743-. Refer to DSG TRANSMISSION MECHATRONIC -J743-, TRANSMISSION INSTALLED . | AT vehicle ECM coded as MT vehicle | Time after ignition on 500 mSec. | 100 mSec. | 2 DCY |
| U0402 | Invalid Data Received From Gear Shift Control Module A | Check the CAN bus. Refer to CAN-BUS TERMINAL RESISTANCE, SELECTOR LEVER TO MOTRONIC ENGINE CONTROL MODULE, CHECKING | Transmission Data Length Code incorrect | Time after ignition on 500 mSec. | 60 mSec. | 2 DCY |
| U0415 | CAN Communication With ABS Error | Refer to the service instructions for ABS diagnosis. | Speed sensor initialization failed Speed sensor low voltage error failed Speed sensor error failed | Time after ignition on 500 mSec. Battery voltage > 9.5 V Battery voltage < 16 V | 0.5 Sec. | 2 DCY |
| U0422 | Invalid Data Received From Body Control Module (Cluster) | Refer to the service instructions for Instrument Cluster diagnosis. | Ambient temperature value initialization failure. | Status ambient temperature from instrument cluster no fault Electrical check ambient temperature sensor no fault | 2.0 Sec. | 2 DCY |
| U0423 | Invalid Data Received From Instrument Panel Cluster Control Module | Replace the IPC module. Refer to the Repair Instructions. | Implausible CAN messages received. Implausible ambient temperature value | No ambient temperature faults set in instrument cluster module. Key on. | 600 mSec. to 3 Sec. | 2 DCY |
| U0447 | Lost Communication With Gateway | Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING . | CAN message incorrect or implausible | 0.5 Sec. | 2 DCY |
FUEL PUMP ELECTRICAL, TESTING
Special tools and workshop equipment required
- multimeter.
- Electrical connector test lead set.
Test conditions
Scheme 2
- 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 the Repair Instructions.
Remove the Fuel Pump Control Module from the retaining clips on the floor sealing cover.
Scheme 3
Disconnect the electrical harness connector -arrow- from the Fuel Pump Control Module.
Scheme 4
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 5
Turn the Ignition key to the ON position.
The meter should read within 1 volt 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
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.
Scheme 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, replace the Fuel Pump Control Module.
If voltage is within specification, replace the Fuel Delivery Unit (Fuel Pump). Refer to the Repair Instructions.
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»(ref-479536-S33258442012012061300000) .
- If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(ref-479536-S06965097892012061300000) .
- If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(ref-479536-S01707603622012061300000) .
FUEL PRESSURE TEST
Special tools and workshop equipment required
- multimeter.
- fuel line adapter setV.A.G. 1318/17A. These tools may be substituted with an equivalent aftermarket tool and are also available for rental or purchase through Volkswagen.
- 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 7
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 the Repair Instructions.
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 the Repair Instructions.
If pressure did not increase
Fuel pump is faulty
Replace the fuel pump. Refer to the Repair Instructions.
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»(ref-479536-S33258442012012061300000) .
- If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(ref-479536-S06965097892012061300000) .
- If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(ref-479536-S01707603622012061300000) .
TESTING IF DISPLAY IS APPROX. - 40.0° C
Disconnect the Engine Coolant Temperature (ECT) Sensor - G62 or 83- electrical harness connector.
Using a jumper wire, connect the Engine Coolant Temperature (ECT) Sensor - G62 or 83- electrical harness connector terminals 1 to 2.
Turn the ignition switch ON
Check the value indicated on the scan tool display.
Turn the ignition switch OFF
If the value jumps to approx. 140.0° C
Replace the Engine Coolant Temperature (ECT) Sensor - G62 or 83- Refer to the Repair Instructions.
If indication remains at approx. - 40.0° 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 the Repair Instructions.
Using a multimeter, check the Engine Coolant Temperature (ECT) Sensor - G62 or 83- electrical harness connector terminals to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminals for an open circuit or a short to voltage, refer to the chart below.
| 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 | 57 |
| 2 | 14 |
OR
| Engine Coolant Temperature (ECT) Sensor - G83- electrical harness connector terminals | Motronic Engine Control Module (ECM) -J623- electrical connector T94 terminals or test box socket |
|---|---|
| 1 | 36 |
| 2 | 12 |
Specified values: 1.5 ohms Max. and 0 volts with key on and ECM disconnected.
If the specified value was Not obtained
Check the wiring for an open or short circuit to Battery (+).
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
If necessary, repair the faulty wiring connection.
If the specified value was obtained
Using a multimeter, check terminal 2 of the ECT sensor to engine ground.
Specified value: 1.5 ohms Max
If the specified value was Not obtained
Check the wiring for an open circuit or high resistance.
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
If necessary, repair the faulty wiring connection.
If the specified value was obtained
Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the Repair Instructions.
TESTING IF DISPLAY APPROX. 140.0 °C
Disconnect the Engine Coolant Temperature (ECT) Sensor - G62 or 83- electrical harness connector.
Turn the ignition switch ON.
If indication jumps to approx. - 40.0 °C
Switch ignition OFF.
Replace the Engine Coolant Temperature (ECT) Sensor - G62 or 83- Refer to the Repair Instructions.
If the value 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- and disconnect the ECM connectors. Refer to the Repair Instructions.
Disconnect the ECT harness connector at the sensor.
Using a multimeter, check the signal circuit of the Engine Coolant Temperature (ECT) Sensor - G62 or 83- electrical harness connector terminal 1 to engine ground.
Specified value: OL or no continuity.
If the specified value was Not obtained
Check the wiring for a short circuit to Ground.
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
If necessary, repair the faulty wiring connection.
If the specified value was obtained
Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the Repair Instructions.
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»(ref-479536-S33258442012012061300000) .
- If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(ref-479536-S06965097892012061300000) .
- If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(ref-479536-S01707603622012061300000) .
TESTING IF DISPLAY APPROX. - 40° C TO - 46° C
Disconnect the Ambient Temperature sensor -G17- electrical harness connector. -1
Using a jumper wire, connect the MAF / IAT sensor -G70 / G42- electrical harness connector terminals 4 to 5.
Check the value indicated on the scan tool display.
If indication jumps to approx. 140 °C
Switch ignition off.
Replace the MAF / IAT sensor -G70 / G42- Refer to the Repair Instructions.
If indication remains at approx. -40 °C or -46 °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 the Repair Instructions.
Disconnect the ECM harness.
Using a multimeter, check the MAP / IAT sensor -G70 / G42- electrical harness connector terminal 5 to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T94 terminal 60 for an open circuit or a short to voltage, refer to the wiring diagram.
Specified values: Circuit continuity; 1.5 ohms max; Circuit voltage = 0 volts when disconnected from ECM (with ignition on).
If the specified value was Not obtained
Check the wiring for an open, high resistance or short circuit to Battery (+)
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
If necessary, repair the faulty wiring connection.
If the specified value was obtained
Using a multimeter, check terminal 4 of the MAF / IAT sensor to engine ground.
Specified value: 1.5 ohms Max
If the specified value was Not obtained
Check the wiring for an open circuit 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 detected in the ground circuit
Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the Repair Instructions.
TESTING IF DISPLAY APPROX. 140° C
Disconnect the MAF / IAT sensor -G70 / G42- electrical harness connector. -1
Check the value indicated on the scan tool display.
If indication jumps to approx. -40° C or -46° C
Switch ignition off.
Replace the MAF / IAT sensor -G70 / G42- Refer to the Repair Instructions.
If the indication remains at approx. 140° C
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 Repair Instructions.
Disconnect the ECM harness.
Using a multimeter, check the MAF / IAT sensor -G70 / G42- electrical harness connector terminal 5 to engine ground.
Specified value: OL or no continuity.
If the specified value was Not obtained
Check the wiring for a short circuit to Ground (GND).
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 the sensor resistance was OK
Replace the Motronic Engine Control Module (ECM) -J623-. Refer to the Repair Instructions.
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»(ref-479536-S33258442012012061300000) .
- If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(ref-479536-S06965097892012061300000) .
- If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(ref-479536-S01707603622012061300000) .