2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 521

Test 1: Check component Relay 'Fuel pump'.

1. Check component Relay '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).

Continue to test with button F2

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.17] 113 of the 126-pole socket box tester.

- Switch on ignition.

Specified value

- Amperage[0,1...0,3] A

- Component M3 (Fuel pump assembly) is switched on and is heard to run.

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

- Lines to component N10/2kA (Fuel pump relay)

- N10/2kA (Fuel pump relay)