Intermittent fault
Check the fuel pump (FP) and the control module connectors. Check for contact resistance and oxidation.
Check the cable between control module terminal #13 and fuel pump terminal 2. Check for an intermittent open-circuit. Check for a short-circuit to ground.
Check the cable between control module #11 and water pump terminal 1. Check for an intermittent open-circuit.
Remedy as necessary.
Other information:
- To access the control module or connect the breakout box, see Connecting the breakout box
- To access or replace the fuel pump (FP):
- For cars manufactured up to w38 2001 inclusive, see Fuel pump, auxiliary heater, replacing
- For cars manufactured from w39 2001 inclusive, see Fuel pump auxiliary heater, replacing .
- For other values, see Signal specification
- See Checking wiring and terminals .
- Continue
Refer to Information