2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 565

Specified value

- Voltage[11.0...15.0] V

Continue with button F2

Test PWM signal for operating the suction fan.

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

Test sequence

- Switch off ignition.

- Connect socket box (35-pin) to component N3/10 (ME-SFI [ME] control unit).

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

- Switch on ignition.

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 prerequisite

- Coolant temperature< 80锟斤拷 C

- Charger connected(The battery voltage must be higher than 12.5 V.)

- Ignition ON

- Engine not running

- Vehicle stationary

- There is no fault code present for component B11/4 (Coolant temperature sensor).

- The fuses of component M4/7 (Engine and AC electric suction fan with integrated control) are OK.

Actual values:

- Coolant temperature:Warning! Communication with ECU required.

Continue with button F2

2. No further information available.