2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 686

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

- N10/1f52 (Fuse 52)

- Lines

End of test

0866

Voltage supply of component Motor electronics / Battery voltage too low (P0562)

Possible cause:

- N3/10 (ME-SFI [ME] control unit)

Affected functions:

- Engine diagnosis

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

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

Test 1.4: 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.?

YES

The actual value is okay.End of test