Fuel Pump Electrical, Testing

Fuel Pump Electrical, Testing

Special tools, testers and auxiliary items required

• Hand held remote control (jumper).

• Multimeter.

• Electrical connector test lead set.

Test conditions

• Battery voltage 12.5 V.

• Fuse - 29 - in fuse holder at left of instrument panel is OK.

• Fuel filter OK.

• Ignition switched off.

Test procedure

- Perform a preliminary check to verify the customers complaint. Refer to => [ General Diagnosis ] General Diagnosis.

Start diagnosis

- Remove the rear seat bench. Refer to repair information.

- Remove cover retainers - arrows - from the right sealing flange.





- Disconnect the electrical harness connector - arrow - from the fuel delivery unit.





- Connect a Hand held remote control (jumper) to terminal - 1 - of the fuel delivery unit and to vehicle battery (+).

- Connect a jumper cable from an Electrical connector test lead set to terminal - 5 - of the fuel delivery unit and to vehicle Ground (GND).





- Press switch on the Hand held remote control (jumper).

• The Fuel Pump (FP) runs quietly. Avoid surrounding noises while testing the fuel pump.

- Listen for an operating noise from the fuel pump.

If no operating noise is heard:





- Remove the fuel delivery unit.

- Using a Multimeter, check the electrical circuit between terminals - 1 - and - 5 - of the fuel delivery unit for continuity.

Specified value: 0 ohms.

If a malfunction is detected in the electrical circuit:

- Check the electrical harness connector for damage, corrosion, lose or broken terminals.

- Repair the electrical circuit.

If no malfunction is detected in electrical circuit, replace the fuel pump.

- Install the fuel delivery unit.