Part 1

Diagnostic Modes

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.

• 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 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 values of the individual test results must reach the specified value or must be within the min. and max. limits.

• 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 catalytic converter and cylinder head.

• No DTCs 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.









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

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

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

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

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

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

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

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

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

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

- 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 "Test-ID 06 ($06)".

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

Test-ID 09 ($09): Oxygen Sensor Monitor Bank 3 - Sensor 1.

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

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

Test-ID 10 ($0A): Oxygen Sensor Monitor Bank 3- Sensor 2.

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

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

Test-ID 13 ($0D): Oxygen Sensor Monitor Bank 4 - Sensor 1.

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

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

Test-ID 14 ($0E): Oxygen Sensor Monitor Bank 4 - Sensor 2.

- 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 "Test-ID 06 ($06)".

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

Test-ID 33 ($21): Catalyst Monitor Bank 1.

- 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 "Test-ID 33 ($21)".

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

Test-ID 34 ($22): Catalyst Monitor Bank 2.

- 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 "Test-ID 34 ($22)".

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

Test-ID 35 ($23): Catalyst Monitor Bank 3.

- 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 "Test-ID 33 ($21)".

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

Test-ID 36 ($24): Catalyst Monitor Bank 4.

- 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 "Test-ID 34 ($22)".

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

$3A (58): Fuel Tank EVAP System Leak Test (0.090")

- 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 "Test-ID 59 ($3B)".

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

Test-ID 59 (3B): EVAP Monitor (0.040)

- 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 "Test-ID 59 ($3B)".

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

Test-ID 60 (3C): EVAP Monitor (0.020)

- 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 "Test-ID 60 ($3C)".

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.

Test-ID 61 (3D): Tank Vent Valve function check

- 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 "Test-ID 61 ($3D)".

- Select the desired "Test-ID".

- Check specified values at idle.





- If any component or system fails 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.

- Switch the ignition off.

- End of diagnosis.