2.0l - Generic Scan Tool - Engine Code(s): Aeg (hatchback) Volkswagen New Beetle A4

OBD, GENERAL INFORMATION

The following table provides quick links to all instructions in this article.

GENERIC SCAN TOOL MANUAL CONTENTS

"GST" is an acronym for Generic Scan Tool Information.

Included in the contents of this GST information is a summary table of the vehicle specific OBD II Emission Related Engine and Transmission DTCs. This table contains all necessary Malfunction Criteria, Threshold Values, Secondary Parameters, Enabling Conditions, Monitoring Time Length, Frequency of Checks, and MIL Illumination to accurately monitor and diagnose the Engine Emissions and Transmission and perform all functions required to run Modes 01 through 09 with a hand held scan tool. For a further description of the monitor strategies, a document reference has been provided throughout this GST information to the applicable OBD System Strategy document.

This GST information also contains the step by step pin point test procedures to accurately diagnose the suspected component or system once a DTC has been set. All references to repair procedures and wiring diagrams will be found within the diagnostic test procedure.

OBD SYSTEMS

OBD II

"OBD" is an acronym for the On Board Diagnostic System.

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 (MDPVs) are required to have OBD II. Federal OBD II applies to all gasoline engine vehicles up to 8, 500 lbs. GVWR starting in the 1996 MY and all diesel engine vehicles up to 8, 500 lbs. GVWR starting in the 1997 MY.

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

MALFUNCTION INDICATOR LAMP ILLUMINATION

"MIL" is an acronym for the Malfunction Indicator Lamp.

If the ECM recognizes a malfunction that leads to increased emissions values, it indicates them by lighting the MIL which is located in the instrument cluster.

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

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

CAN DATA LINK

"CAN" is an acronym for Controller Area Network.

The ECM communicates with all databus capable control modules by a CAN Data Link.

The databus capable control modules (i.e. Engine Coolant temperature Sensor) are connected by two data bus wires which are twisted together (CAN_High and CAN_Low), and exchange information (messages) to the ECM. Missing information on the databus is then recognized and stored as a malfunction.

The ECM illuminates the MIL through the CAN data link and tells the MIL to turn on, turn off, or blink.

ELECTRONIC POWER CONTROL WARNING LAMP

"EPC" is an acronym that stands for the Electronic Power Control (E-gas).

The ECM monitors all EPC components after the ignition is switched on.

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

DIAGNOSTIC MODES DESCRIPTION

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.

The following table provides a link to all diagnostic modes that monitor all components and systems which influence the emission quality.

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

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.

Depending on scan tool and protocol used, the information displayed in diagnostic mode 01 may be referred to by different names such as Test-ID (TID), Hex-ID, Component-ID (CID), On-Board Diagnostic Monitor Identifier (OBDMID), or contain no name at all and be referenced by only a number.

Test requirement

1. 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.

Switch the ignition off.

End of procedure

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.

Depending on scan tool and protocol used, the information displayed in diagnostic mode 02 may be referred to by different names such as Test-ID (TID), Hex-ID, Component-ID (CID), On-Board Diagnostic Monitor Identifier (OBDMID), or contain no name at all and be referenced by only a number.

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 under any circumstances.

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

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

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

Switch the ignition off.

End of procedure

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 Engine Control Module (ECM) -- recognizes an emission related fault, it turns on the Malfunction Indicator Lamp (MIL) -- or if a Electronic Throttle Malfunction is recognized, the Engine Control Module (ECM) -- turns on the Electronic Power Control (EPC) Warning Lamp -- which are both located in the instrument cluster.

Diagnostic Mode 03 is used to retrieve and view any DTC which may be stored in the Engine Control Module (ECM) --.

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

Depending on scan tool and protocol used, the information displayed in diagnostic mode 03 may be referred to by different names such as Test-ID (TID), Hex-ID, Component-ID (CID), On-Board Diagnostic Monitor Identifier (OBDMID), or contain no name at all and be referenced by only a number.

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

P-Codes

U-Codes

DIAGNOSTIC TROUBLE CODE MEMORY, CHECKING

Procedure

Connect the scan tool.

Switch the ignition to the "ON" position.

Select "Diagnostic Mode 03 - Interrogating Fault Memory".

The stored DTC or DTC's 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

Refer to the following DTC tables for the diagnostic repair procedure

1. «SAE P0XXX DIAGNOSTIC TROUBLE CODES»(/volkswagen/new-beetle/a4-1997-2005/remont/cooling-fan/#20l-generic-scan-tool-engine-codes-aeg-hatchback__sae-p0xxx-diagnostic-trouble-codes) .
2. «SAE P1XXX DIAGNOSTIC TROUBLE CODES»(/volkswagen/new-beetle/a4-1997-2005/remont/cooling-fan/#20l-generic-scan-tool-engine-codes-aeg-hatchback__sae-p1xxx-diagnostic-trouble-codes) .

Switch the ignition off.

End of procedure

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)

1. MIL Status
2. Number of DTCs
3. Readiness Bits
4. Confirmed DTCs
5. Pending DTCs
6. DTC that belongs to freeze frame
7. Freeze frame data
8. Test results of specific diagnostic functions
9. Distance driven with "MIL ON"
10. Number of Warm-Up Cycles after erasing the DTC memory
11. Distance driven after erasing the DTC memory
12. Misfire counter

Depending on scan tool and protocol used, the information displayed in diagnostic mode 04 may be referred to by different names such as Test-ID (TID), Hex-ID, Component-ID (CID), On-Board Diagnostic Monitor Identifier (OBDMID), or contain no name at all and be referenced by only a number.

Procedure

Connect the scan tool.

Switch the ignition on.

Select "Diagnostic Mode 03 - Interrogating Fault Memory".

Then select "Diagnostic Mode 04 - Reset/Delete Diagnostic Data".

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

Switch the ignition off.

End of procedure

DIAGNOSTIC MODE 05 - READ OXYGEN SENSOR MONITORING TEST RESULTS

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

The min & max values for each individual test in Mode 05 represent the min & max operating values for a properly operating system. This data is provided to the individual aftermarket scan tool companies for development of their scan tool. Depending on the scan tool being used, the min & max values shown may vary, or be rounded up or down to the nearest decimal point depending on the aftermarket scan tool company's development process. e.g.

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

Test requirements

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

Work 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 under any circumstances.

Select "Diagnostic Mode 05 - Check Lambda Test Results."

Select the desired "Test-ID" of the component or system that is to be monitored, e.g. "Test-ID 01: Oxygen Sensor Monitor Bank 1 - Sensor 1".

Select the desired "Test-ID".

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

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

Test-ID 01 ($01): Oxygen Sensor in Front of Catalytic Convertor Monitor Bank 1 - Sensor 1

Connect the scan tool.

Start the engine and run at idle.

Select "Diagnostic Mode 05 - Check Lambda Test Results".

Select "Test-ID 01 ($01) ".

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

Check specified values at idle.

If any of components or systems fail to meet the specified values. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY to check for stored DTC's or the corresponding diagnostic repair procedure.

Switch the ignition off.

End of diagnosis

Test-ID 02 ($02): Oxygen Sensor Behind Catalytic Converter Monitor Bank 1- Sensor 2

Connect the scan tool.

Start the engine and run at idle.

Select "Diagnostic Mode 05 - Check Lambda Test Results".

Select "Test-ID 02 ($02)".

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

Check specified values at idle.

If any of components or systems fail to meet the specified values. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY to check for stored DTC's or the corresponding diagnostic repair procedure.

Switch the ignition off.

End of diagnosis

DIAGNOSTIC MODE 06 - READ TEST RESULTS FOR SPECIFIC DIAGNOSTIC FUNCTIONS

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

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

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

Test requirements

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

Work 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 under any circumstances.

Select "Diagnostic Mode 06 - Check Test Results of Components that are not Continuously Monitored".

Select the desired "Test-ID" of the component or system that is to be monitored, e.g. "Test-ID 01: Oxygen Sensor Monitor Bank 1 - Sensor 1".

Select the desired "Test-ID".

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

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

Test-ID 01 ($01): Catalytic Conversion (Bank 1)

Connect the scan tool.

Start the engine and run at idle.

Select "Diagnostic Mode 06 - Check Test Results of Components that are not Continuously Monitored".

Select "Test-ID 01 ($01) ".

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

Check specified values at idle.

Model Year 1999

Model Year 2000

If any of components or systems fail to meet the specified values. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY to check for stored DTC's or the corresponding diagnostic repair procedure.

Switch the ignition off.

End of diagnosis

Test-ID 02 ($02): Oxygen Sensor Bank 1- Sensor 1

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6".

Select "Test-ID 02 ($02)".

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

Check specified values at idle.

If any of components or systems fail to meet the specified values. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY to check for stored DTC's or the corresponding diagnostic repair procedure.

Switch the ignition off.

End of diagnosis

Test-ID $03 (03): Secondary Air Injection (AIR) System (Bank 1)

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6".

Select "Test-ID 03 ($03)".

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

Check specified values at idle.

If any of components or systems fail to meet the specified values. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY to check for stored DTC's or the corresponding diagnostic repair procedure.

Switch the ignition off.

End of diagnosis

Test-ID $05 (05): Tank Ventilation System, Tank Vent Valve Function Check

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6".

Select "Test-ID 05 ($05)".

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

Check specified values at idle.

Test-ID $05 (05): Tank Ventilation System, Tank Leak Test

Connect the scan tool.

Start the engine and run at idle.

Select "Mode 6".

Select "Test-ID 05 ($05)".

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

Check specified values at idle.

If any of components or systems fail to meet the specified values. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY to check for stored DTC's or the corresponding diagnostic repair procedure.

Switch the ignition off.

End of diagnosis

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 following DTC tables for the diagnostic repair procedure

1. «SAE P0XXX DIAGNOSTIC TROUBLE CODES»(/volkswagen/new-beetle/a4-1997-2005/remont/cooling-fan/#20l-generic-scan-tool-engine-codes-aeg-hatchback__sae-p0xxx-diagnostic-trouble-codes) .
2. «SAE P1XXX DIAGNOSTIC TROUBLE CODES»(/volkswagen/new-beetle/a4-1997-2005/remont/cooling-fan/#20l-generic-scan-tool-engine-codes-aeg-hatchback__sae-p1xxx-diagnostic-trouble-codes) .

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.

Diagnostic Mode 08, TID $01

Diagnostic Mode 08, TID $01 is used to determine if the evaporative system may be leaking.

Depending on the scan tool being used, the function test in Diagnostic Mode 08 may or may not be able to be performed.

If the scan tool being used will operate Diagnostic Mode 08, perform the test below Function test .

If the scan tool being used will not operate Diagnostic Mode 08, refer to EVAP SYSTEM, CHECKING FOR LEAKS .

Note. Always follow the manufacturers instructions for the scan tool being used.

Test requirements

1. No DTCs stored in the DTC memory.
2. Intake Air Temperature (IAT) maximum 60° C.
3. Coolant temperature 80 -110° C.
4. 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 "Diagnostic Mode 08 - Tank Leak Test".

Select " Tank Leak Test".

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

The following may be displayed on the scan tool screen

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 .

End diagnosis

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

1. No DTC's stored in the DTC memory.

Procedure

Connect the scan tool.

Switch the ignition on.

Select "Diagnostic 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.

Switch the ignition off.

End of procedure

GENERAL DIAGNOSIS

The following table provides quick links to all instructions in this article.

PRELIMINARY CHECK

Before performing any pin point test or component diagnosis, a Preliminary Check must be performed.

Connect the scan tool.

Switch the ignition on.

Using the scan tool, check for any stored or related DTC's.

If other DTC's are stored

Repair these DTC's first before performing the following procedure.

If no other DTC's are stored

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

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

If the DTC returns

Perform the diagnostic procedure.

If the DTC does not return

The fault is intermittent or a sporadic condition may exist.

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

If necessary, repair the faulty wiring connection.

Perform a road test to verify the repair.

If the DTC returns

Perform the diagnostic procedure.

If the DTC does not return

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

Generate readiness code. Refer to READINESS CODE DESCRIPTION .

End of diagnosis.

READINESS CODE

The following table provides quick links to all instructions in this article.

READINESS CODE DESCRIPTION

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

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

The OBD drive cycle operation will be monitored with a hand held diagnostic tool. Consult the manufacturer's instructional information for correct tool operation.

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

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

General Recommendations

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

Operating Conditions

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

Test requirements

1. Erase the DTC memory «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(/volkswagen/new-beetle/a4-1997-2005/remont/cooling-fan/#20l-generic-scan-tool-engine-codes-aeg-hatchback__diagnostic-mode-04-erase-dtc) .
2. Coolant temperature must be between 80° C - 110° C.
3. The Intake Air Temperature (IAT) must be between 10° C - 35° C.
4. Battery voltage must be a minimum of 12.5 volts.
5. Fuel tank level 1/4 - 3/4 full.

Drive Cycle Procedure

Connect the scan tool.

Switch the ignition on and start the vehicle.

Idle the vehicle for 2-3 minutes. This executes the O2S Heater, Misfire, Secondary AIR, Fuel Trim, and Purge system monitors.

Drive the vehicle at 45-55 mph for a continuous 7 minute period, avoid stopping. This executes the EVAP, O2S, Fuel Trim, and Misfire monitors.

Accelerate the vehicle to an engine speed of 5000 RPM (with automatic transmission use the tip-tronic mode); lift off the throttle until the engine speed is around 1200 rpm. This executes the fuel cut off

Accelerate the vehicle smoothly to 60-65 mph, cruise constantly for 5 min, this executes the Catalyst; O2S, Misfire, Fuel Trim, and Purge System monitors.

Decelerate and idle the vehicle again for 3 minutes. This executes the Misfire, Secondary AIR, Fuel Trim, and Purge system monitors.

Check the status of the readiness code.

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

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

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

If the drive cycle operation fails again.

Check the DTC memory for stored DTC's DIAGNOSTIC MODE 03 - READ DTC MEMORY .

Repair the vehicle if necessary.

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

Remove the scan tool and switch the ignition off.

End of operation.

DIAGNOSTIC TROUBLE CODE TABLES

The following table provides quick links to all instructions in this article.

SAE P0XXX DIAGNOSTIC TROUBLE CODES

For Monitor Strategy Information Refer to: Bosch Motronic ME 5.9.2 OBD System Strategy

Fuel and air ratios

Ignition system

Additional exhaust regulation

Speed and idle control

Control module and output signals

01M Transmission

SAE P1XXX DIAGNOSTIC TROUBLE CODES

For Monitor Strategy Information Refer to: Bosch Motronic ME 5.9.2 OBD System Strategy

Fuel and Air ratios, control module

See also:
• EVAP SYSTEM, CHECKING FOR LEAKS
• MASS AIR FLOW SENSOR G70, CHECKING
• INTAKE AIR TEMPERATURE SENSOR G42, CHECKING
• THROTTLE POSITION SENSOR G69 AND THROTTLE POSITION SENSOR G88, CHECKING
• HEATED OXYGEN SENSOR G39, CHECKING
• OXYGEN SENSOR HEATER Z19, CHECKING
• OXYGEN SENSOR HEATER AFTER CATALYTIC CONVERTER G108, CHECKING
• OXYGEN SENSOR HEATER Z28, CHECKING
• FUEL PRESSURE, CHECKING
• FUEL INJECTORS N30, N31, N32, N33, CHECKING
• EVAP CANISTER PURGE REGULATOR VALVE N80, CHECKING
• IGNITION COIL N152, CHECKING
• ENGINE SPEED SENSOR G28, CHECKING
• CAMSHAFT POSITION SENSOR G40, CHECKING
• THREE WAY CATALYTIC CONVERTER, CHECKING
• LEAK DETECTION PUMP V144, CHECKING
• SPEED SIGNAL, CHECKING
• THROTTLE VALVE CONTROL MODULE J338, CHECKING
• MOTRONIC ENGINE CONTROL MODULE J220, REPLACING
• TRANSMISSION VEHICLE SPEED SENSOR G38, CHECKING
• CAN-BUS TERMINAL RESISTANCE, TRANSMISSION CONTROL MODULE J217 TO ENGINE CONTROL MODULE J220, CHECKING
• SOLENOID VALVES IN VALVE BODY, CHECKING
• ENGINE COOLANT TEMPERATURE SENSOR G62, CHECKING
• FUEL SUPPLY
• TRANSMISSION CONTROL MODULE J217
• [For transmission(s) 01M] Torque Converter
• GENERIC SCAN TOOL MANUAL CONTENTS
• OBD SYSTEMS
• MALFUNCTION INDICATOR LAMP ILLUMINATION
• CAN DATA LINK
• ELECTRONIC POWER CONTROL WARNING LAMP
• DIAGNOSTIC MODE 01 - READ CURRENT SYSTEM DATA
• DIAGNOSTIC MODE 02 - READ OPERATING CONDITIONS
• DIAGNOSTIC MODE 03 - READ DTC MEMORY
• DIAGNOSTIC MODE 04 - ERASE DTC MEMORY
• DIAGNOSTIC MODE 05 - READ OXYGEN SENSOR MONITORING TEST RESULTS
• DIAGNOSTIC MODE 06 - READ TEST RESULTS FOR SPECIFIC DIAGNOSTIC FUNCTIONS
• DIAGNOSTIC MODE 07 - READ FAULTS DETECTED DURING THE CURRENT OR LAST DRIVING CYCLE
• DIAGNOSTIC MODE 08 - REQUEST CONTROL OF ON-BOARD SYSTEM, TEST OR COMPONENT
• DIAGNOSTIC MODE 09 - READ VEHICLE INFORMATION
• SAE P0XXX DIAGNOSTIC TROUBLE CODES
• SAE P1XXX DIAGNOSTIC TROUBLE CODES
• Test-ID 01 ($01): Oxygen Sensor in Front of Catalytic Convertor Monitor Bank 1 - Sensor 1
• Test-ID 02 ($02): Oxygen Sensor Behind Catalytic Converter Monitor Bank 1- Sensor 2
• Test-ID 01 ($01): Catalytic Conversion (Bank 1)
• Test-ID 02 ($02): Oxygen Sensor Bank 1- Sensor 1
• Test-ID $03 (03): Secondary Air Injection (AIR) System (Bank 1)
• Test-ID $05 (05): Tank Ventilation System, Tank Vent Valve Function Check
• Function test
• PRELIMINARY CHECK
• READINESS CODE DESCRIPTION