Heating of component G3/3 (Left O2 sensor, before TWC [KAT]) : Short circuit to positive / Resistance of sensor heater too low (P0155)

Heating of component G3/3 (Left O2 sensor, before TWC [KAT]) : Short circuit to positive /
Resistance of sensor heater too low
Heating of component G3/3 (Left O2 sensor, before TWC [KAT]) : Short circuit to positive / Resistance of sensor heater too low
(P0155)
Possible cause:
­ G3/3 (Left O2 sensor, before TWC [KAT])
Affected functions:
­
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Engine diagnosis
Exhaust system
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Test 1: Check component G3/3 (Left O2 sensor, before TWC [KAT]).
1. Check component G3/3 (Left O2 sensor, before TWC [KAT]).
Warning!Communication with ECU required.