062800

The fuel pump has a short circuit to ground.

Test 1: Check power supply at control unit N118 (Fuel pump control module).

Test 2: Possible cause:

- N118 (Fuel pump control module)
Affected functions:

- Engine diagnosis
- Fuel system

1. Check power supply at control unit N118 (Fuel pump control module).
Possible cause and remedy

- Check fuse N10/2f128.
-
Question

- Is fuse N10/2f128 OK?







YES
Test prerequisite
Test sequence

- Switch on ignition.
- Unplug 16-pin connector from component N118 (Fuel pump control module).
- Measure voltage at the unclipped cable.(Ground- Positive)
- Measure direct voltage with multimeter between sockets (N118) 1.2 and (N118) 1.1
Specified values

- Voltage: [11.0 ... 14.5] V
Question

- Is the measurement value OK?







YES
The measurement value is OK.Further possible causes of fault

- Inspect plug connections for corrosion, pinched insulation and loose contact.
End of test

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

- Inspect lead of voltage supply to control module N118 (Fuel pump control module) if necessary for loose contact, damage and corrosion and repair.
End of test

NO
Replace faulty fuse.End of test

2. No further information available.