[4] Check component M3 (Fuel pump).: Signal line is interrupted.

[4] Check component M3 (Fuel pump).: Signal line is interrupted.

Test 1: Signal wire Check component M3 (Fuel pump).

1. Signal wire Check component M3 (Fuel pump).

Test 1.1: Test signal cable of component M3 (Fuel pump) for Open circuit.

1.1. Test signal cable of component M3 (Fuel pump) for Open circuit.
Special tools

- Test cable 271 589 00 63 00
- Socket box 124 589 00 21 00
Test sequence

- Switch off ignition.
- Connect 35-pole socket box at engine wiring harness.
- Measure resistance with multimeter between socket (2.55) 25 of the 35-pole socket box tester and socket (N10/2) 1.7
Specified value:

- Resistor< 1ohms
Question

- Is the measurement value OK?


YES
The measurement value is OK.Possible cause and remedy

- In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors for loose contact and corrosion..
End of test

NO
The measurement value is not OK.Possible cause and remedy

- Test wiring/ plug connection.
End of test