Fault-Tracing Information

Fault-tracing

Checking components
Check relevant connectors for contact resistance and corrosion.
Check the exhaust system for air leakage

Hint: Both a damaged front and/or a damaged rear heated oxygen sensor may be the cause of the stored diagnostic trouble code (DTC).
Check other stored DTCs to draw relevant conclusions about which heat oxygen sensor(s) should be replaced, this is to avoid incorrect replacement of components.

Remedy as necessary.

Other information
- Exhaust system, check, B6324S5, B6304T4, B6324S4 Component Tests and General Diagnostics
- Oxygen sensor (Catalyst monitor sensor), B6304T4 Service and Repair





Continue - Verification

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Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.




- Read off the diagnostic status and the fault status for the diagnostic trouble code (DTC).
- Check that the diagnosis is Performed.

Hint: To enable performing diagnostic status, special conditions must be fulfilled. These conditions are described in diagnostic trouble code (DTC) information for each diagnostic trouble code (DTC).

If the function is correct, the fault status must be No fault found when the diagnostic is complete.





Is the function OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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Fault-tracing information

Attempt New Test - Checking components

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