Mercedes Benz

P0160 G3/5 (Left O2 sensor, after TWC [KAT]) : Discontinuity of signal line (P0160) 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 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ Test 1: Arrangement of fuses Test 2: Check component G3/5 (Left O2 sensor, after TWC [KAT]). Test 3: Power supply 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.