P20DF

B37 (Accelerator pedal sensor) , Short circuit at signal path 2 (P0120)

Test 1: Check component B37 (Accelerator pedal sensor).

1. Check component B37 (Accelerator pedal sensor).

Test 1.1: Check component B37 (Accelerator pedal sensor) using actual value.

Test 1.2: Check power supply of component B37 (Accelerator pedal sensor).

1.1. Check component B37 (Accelerator pedal sensor) using actual value.
Warning!Communication with ECU required.


1.2. Check power supply of component B37 (Accelerator pedal sensor).
Test prerequisite

- The actual value is not o.k.
- 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 (4.16) 101 and (4.04) 89 of the 126-pole socket box tester.
- Measure direct voltage with multimeter between sockets (4.17) 102 and (4.04) 89 of the 126-pole socket box tester.
- Switch on ignition.
Specified value

- Voltage[4.75...5.25] V
Question

- Are the measurement values OK?


YES
The measurement values are OK.Further possible causes of fault

- Signal lines
- B37 (Accelerator pedal sensor)
End of test

NO
The measurement values are not OK.Possible cause and remedy

- Cable for voltage supply
- N3/10 (ME-SFI [ME] control unit)
End of test