2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 312

Test voltage supply of circuit 87.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [F.3] 99 of the 126-pole socket box tester.

- Measure direct voltage with multimeter between sockets [ F.4 ] 100 and [ F.5 ] 101 of the 126-pole socket box tester.

- Measure direct voltage with multimeter between sockets [ F.6 ] 102 and [ F.5 ] 101 of the 126-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

Question

- Are the measurement values OK?

YES

The measurement values are OK.Further possible causes of fault

- Test voltage supply of circuit 30.

NO

The measurement values are not OK.Possible cause and remedy

- N10/1f43 (Fuse 43)

- N10/1f44 (Fuse 44)

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

- Lines

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

End of test

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

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

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