062700

The output for the fuel pump has an electrical fault or open circuit.

Test 1: Check component M3 (Fuel pump).

Test 2: Possible cause:

- M3 (Fuel pump)
Affected functions:

- Engine diagnosis
- Fuel system

1. Check component M3 (Fuel pump).

Test 1.1: Test fuel pressure and internal leaks of fuel system.

Test 1.2: Check power consumption of component M3 (Fuel pump) using actual value.

Test 1.3: Test delivery of component M3 (Fuel pump).

Test 1.4: Test the cables from component N118 (Fuel pump control module) to component M3 (Fuel pump) with the plug connection X36/2 (Fuel pump wiring harness/taillamp harness connector) between the two.

1.1. Test fuel pressure and internal leaks of fuel system.
Warning!Communication with ECU required.


1.2. Check power consumption of component M3 (Fuel pump) using actual value.
Warning!Communication with ECU required.


1.3. Test delivery of component M3 (Fuel pump).
Figure legend

- 043Pressure gage(103 589 00 21 00)
- 055aMeasuring beaker(Min.:2 Liters)
- 055Measuring beaker
- 069Pressure hose(119 589 04 63 00)
Preparation for test

- Switch off ignition.
- Connect test pressure gauge.
- Release fuel pressure.
- Separate fuel feed hose at the fuel line and hold in a suitable measuring beaker.
- Switch on ignition.
Continue to test with button F2







Warning!Communication with ECU required.


1.4. Test the cables from component N118 (Fuel pump control module) to component M3 (Fuel pump) with the plug connection X36/2 (Fuel pump wiring harness/taillamp harness connector) between the two.
Test prerequisite

- A fault has occurred during current measurement at component M3 (Fuel pump).
Test sequence

- Switch off ignition.
- Unplug 6-pin connector from component N118 (Fuel pump control module).
- Unplug coupling A at component rack M3x1 (Fuel pump connector).
- Check lines to component M3 (Fuel pump) for short and open circuits.
Was the test o.k.?







YES
The test was okay.End of test

NO
The test was not okay.Possible cause and remedy

- Repair cable, or replace if necessary.
End of test

2. No further information available.