2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 163

Test sequence

- Switch off ignition.

- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).

- Measure direct current with multimeter between sockets [F.4] 100 and [F.8] 104 of the 126-pole socket box tester.

- Switch on ignition.

Specified value

- Amperage[13...18] mA

Question

- Is the measurement value OK?

YES

The test was okay.End of test

NO

The measurement value is not OK.Possible cause and remedy

- Check control line to component N118/3 (Left fuel pump control unit) for Short circuit or open circuit.

Further possible remedies

- Read fault memories of the control units N118/3 (Left fuel pump control unit) and N3/10 (ME-SFI [ME] control unit).

3. Signal wire PWM signal Fuel pump

Figure legend

- A -ConnectionTest cable 35-pin socket box

- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)

- 05 -35-pin socket box

- 050 -126-pin socket box

- 108 -Test cable 266 589 01 63 00

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

- II 1-63ConnectionTest cable

- III 64-126ConnectionTest cable

Warning!

-

- Connection A of test cable 108 may NOT be connected to connection B of the 126-pin socket box (050).