P0422

The efficiency of the right catalytic converter is insufficient. (function chain) (P0422)


Possible cause:

- Catalytic converter of right cylinder bank
Affected functions:

- Engine diagnosis
- Exhaust system

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Test 1: Check component G3/4 (Right O2 sensor, before TWC [KAT]).

Test 2: Check component G3/6 (Right O2 sensor, after TWC [KAT]).

1. Check component G3/4 (Right O2 sensor, before TWC [KAT]).
Warning!Communication with ECU required.


2. Check component G3/6 (Right O2 sensor, after TWC [KAT]).
Warning!Communication with ECU required.