Volkswagen TSB #Circular 24GW
2021 Volkswagen Jetta
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
- Summary
- In the event of a catalytic converter failure, which could negatively impact tailpipe emissions, existing diagnostics may not properly illuminate the Malfunction Indicator Light (MIL) due to an error identified with Rear O2 Sensor monitoring.
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