0556

G3/5 (Left O2 sensor, after TWC [KAT]) : Short circuit between signal line and line to sensor heater (P0156)

Test 1: Check component G3/5 (Left O2 sensor, after TWC [KAT]).

Test 2: Possible cause:

- G3/5 (Left O2 sensor, after TWC [KAT])
Affected functions:

- Engine diagnosis
- Exhaust system

1. Check component G3/5 (Left O2 sensor, after TWC [KAT]).
Warning!Communication with ECU required.


2. No further information available.