2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 309

Testing of maximum power consumption may be conducted for no longer than 5 s.Specified value

- Amperage[1.0...1.8] A

Question

- Is the measurement value OK?

YES

The measurement value is OK.End of test

NO

The measurement value is not OK.Possible cause and remedy

- N10/1f43 (Fuse 43)

- Line from component Y49/4 (Left camshaft intake solenoid) to component N3/10 (ME-SFI [ME] control unit)

- Y49/4 (Left camshaft intake solenoid)

End of test

0283

Component Y49/4 (Left camshaft intake solenoid) has an open circuit in the wiring. (P0020)

Possible cause:

- Y49/4 (Left camshaft intake solenoid)

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

- N10/1f43 (Fuse 43)

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

Affected functions:

- Engine diagnosis

- Engine output

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

Test 1: Check power supply of component N3/10 (ME-SFI [ME] control unit).

Test 2: Arrangement of fuses

Test 3: Power supply

Test 4: Check component Y49/4 (Left camshaft intake solenoid).

1. Check power supply of component N3/10 (ME-SFI [ME] control unit).

Test 1.1: Test voltage supply of circuit 87. ( Check using actual value )

Test 1.2: Test voltage supply of circuit 30.

Test 1.3: Test voltage supply of circuit 87.

Test 1.4: Test current consumption of component N10/1kR (Circuit 87 relay, engine).

Test 1.5: Test voltage supply of circuit 15.

1.1. Test voltage supply of circuit 87. ( Check using actual value )

Test prerequisite

- The voltage test at component G1 (Battery) is o.k.

- Ignition ON

Status of relevant actual value:

- Battery voltage:Warning! Communication with ECU required.

Specified value

- Battery voltage[11.0 ... 15.0] V

Question:Is the actual value o.k.?