2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 540

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.

4. Check component G3/6 (Right O2 sensor, after TWC [KAT]).

Warning!Communication with ECU required.

0552

G3/6 (Right O2 sensor, after TWC [KAT]) : Short circuit between signal line and line to sensor heater (P0136)

Possible cause:

- G3/6 (Right O2 sensor, after TWC [KAT])

Affected functions:

- Engine diagnosis

- Exhaust system

-------------------------------------------------

Test 1: Check component G3/6 (Right O2 sensor, after TWC [KAT]).

1. Check component G3/6 (Right O2 sensor, after TWC [KAT]).

Warning!Communication with ECU required.

0553

G3/5 (Left O2 sensor, after TWC [KAT]) : Short circuit to positive / Resistance of sensor heater too low (P0158)

Possible cause:

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

Affected functions:

- Engine diagnosis

- Exhaust system

-------------------------------------------------

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.

0554

G3/5 (Left O2 sensor, after TWC [KAT]) : Short circuit to ground (P0156)

Possible cause:

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