2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 471

- 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 prerequisites

- Check plug connection and screw connection B+ to battery, prefuse box and alternator for correct seating.

Test sequence

- Switch off ignition.

- Detach sockets F and M at component N3/10 (ME-SFI [ME] control unit).

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ M.45 ] 45 of the 126-pole socket box tester.

Specified value

- Voltage [ > 11 V ]

Question

- Is the measurement value OK?

YES

Test sequence

- Switch off ignition.

- Reconnect detached couplings.

- Disconnect 2-pin plug from component Generator.

- Connect adapter cable no. 220 589 00 99 35 at component Generator.

- Connect multimeter to red socket of adapter and socket box.

- Measure direct voltage with multimeter between pin [G2] 2 and socket [ M.45 ] 45 of the 126-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage [approx.0 mV ]

Question

- Is the measurement value OK?

YES

The measurement value is OK.Other possible cause of fault