Heating of component G3/5 (Left O2 sensor, after TWC [KAT]) : Heating capacity is too low. (P0161)

P0161
Heating of component G3/5 (Left O2 sensor, after TWC [KAT]) : Heating capacity is too low. (P0161)
Possible cause:
­ G3/5 (Left O2 sensor, after TWC [KAT])
Affected functions:
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Engine diagnosis
Exhaust system
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Test 1: Check component G3/5 (Left O2 sensor, after TWC [KAT]).
1. Check component G3/5 (Left O2 sensor, after TWC [KAT]).
Warning!Communication with ECU required.