Mercedes Benz : 2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 268

Test prerequisite

- At least one of the relevant actual values is not okay.

- The power supply of component N3/10 (ME-SFI [ME] control unit) is OK.

Test sequence

- Switch off ignition.

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

- Measure direct voltage with multimeter between sockets (M.39) 39 and (M.43) 43 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[4.75...5.25] V

Question

- Is the measurement value OK?

YES

The measurement value is OK.Possible cause and remedy

- Check lines from component M16/6 (Throttle valve actuator) to component N3/10 (ME-SFI [ME] control unit).

End of test

The measurement value is not OK.Possible cause and remedy

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

End of test

0168

M16/6 (Throttle valve actuator) : There is a comparison error between actual value potentiometers 2 and 1. (P2135)

Possible cause:

- M16/6 (Throttle valve actuator)

Affected functions:

- Engine diagnosis

- Engine output

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Test 1: Check component M16/6 (Throttle valve actuator).

1. Check component M16/6 (Throttle valve actuator).

Test 1.1: Check component M16/6 (Throttle valve actuator) using actual value.

Test 1.2: Test voltage supply of the potentiometers of component M16/6 (Throttle valve actuator).

1.1. Check component M16/6 (Throttle valve actuator) using actual value.

Warning!Communication with ECU required.

1.2. Test voltage supply of the potentiometers of component M16/6 (Throttle valve actuator).