P0056 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)

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P0056
Heating of component G3/5 (Left O2 sensor, after TWC [KAT]) : Open circuit (P0056)
Possible cause:
­ G3/5 (Left O2 sensor, after TWC [KAT])
­ Z7/36 (Circuit 87 M2e connector sleeve)
­ K40/4f44 (Fuse 44)
­ K40/4kK (Engine electronics and chassis relay)
Affected functions:
­
­
Engine diagnosis
Exhaust system
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Test 1: Arrangement of fuses
Test 2: Check component G3/5 (Left O2 sensor, after TWC [KAT]).
Test 3: Power supply
10.52SS
Page 1662010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
Page 167
1. Arrangement of fuses
End of test
2. Check component G3/5 (Left O2 sensor, after TWC [KAT]).
Warning!Communication with ECU required.
3. Power supply
Voltage supply via component Z7/36 (Circuit 87 M2e connector sleeve)
Possible cause and remedy
­
Check voltage supply according to wiring diagram.