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), see FUEL PUMP AUXILIARY HEATER, REPLACING
• For other values, see SIGNAL SPECIFICATION
• see CHECKING WIRING AND TERMINALS .

Fig 1: Identifying Fuel Pump Connector Terminals

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Ohm Meter

Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Connector Terminals

Courtesy of VOLVO CARS CORPORATION

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  Refer to INFORMATION 

  OKAY:  Troubleshooting has been completed.