2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 394

- N10/1 (Driver-side SAM control unit with fuse and relay module)

Fuses

- FuseF43-F67

Relays

- I =N10/1kI (Circuit 87 relay, engine)

- K =N10/1kK (Circuit 87 relay, chassis)

- L =N10/1kL (Starter relay)

- M =N10/1kM (SEQ [ASG] pump control relay)

- N =N10/1kN (Circuit 15 relay)

- O =N10/1kO (FAN relay module)

- P =N10/1kP (Circuit 15R relay)

- R =N10/1kR (Air pump or oil cooler fan relay)

5. Power supply

Voltage supply via component Z7/38 (Circuit 87 M1i connector sleeve)

Possible cause and remedy

- Check voltage supply according to wiring diagram.

0313

The injection valve output stage of cylinder 6 detects a short circuit to positive. (P0277)

Possible cause:

- Y62y6 (Fuel injector cylinder 6)

Affected functions:

- Engine diagnosis

- Engine running

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Test 1: Check component Y62y6 (Fuel injector cylinder 6).

1. Check component Y62y6 (Fuel injector cylinder 6).

Test 1.1: Check component Y62y6 (Fuel injector cylinder 6).

1.1. Check component Y62y6 (Fuel injector cylinder 6).

Safety note

Warning!Risk of explosion, poisoning and injury!Fuels are highly inflammable and toxic if inhaled. Fuels may cause skin damage. fuel vapors are

explosive, invisible and spread out at floor level, they are toxic if inhaled and produce giddiness and an anaesthetizing effect.Rules of conduct and

protective measures

- Wear suitable protective clothing.

- Pay attention to national safety precautions and regulations.

- No fire, sparks, naked flames and smoking.

- Ensure the work place is adequately ventilated.