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: Effect of the catalytic converter for the right cylinder bank
1. Effect of the catalytic converter for the right cylinder bank
Test 1.1: Check component G3/4 (Right O2 sensor, before TWC [KAT]).
Test 1.2: Check component G3/6 (Right O2 sensor, after TWC [KAT]).
1.1. Check component G3/4 (Right O2 sensor, before TWC [KAT]).
Warning!Communication with ECU required.
1.2. Check component G3/6 (Right O2 sensor, after TWC [KAT]).
Warning!Communication with ECU required.
0946
The efficiency of the left catalytic converter is insufficient. (function chain) (P0422)
Possible cause:
- Catalytic converter of left cylinder bank
Affected functions:
- Engine diagnosis
- Exhaust system
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Test 1: Effect of the catalytic converter for the left cylinder bank
1. Effect of the catalytic converter for the left cylinder bank
Test 1.1: Check component G3/3 (Left O2 sensor, before TWC [KAT]).
Test 1.2: Check component G3/5 (Left O2 sensor, after TWC [KAT]).
1.1. Check component G3/3 (Left O2 sensor, before TWC [KAT]).
Warning!Communication with ECU required.
1.2. Check component G3/5 (Left O2 sensor, after TWC [KAT]).
Warning!Communication with ECU required.
0954
Mechanical defect or component Y58/4 (Activated charcoal canister shut-off valve) permanently closed (P2422)
