Fuel Pump Electrical, Testing

WARNING: This page is about a different variant/trim than selected.

Special tools and workshop equipment required

Test conditions

Test procedure

-- Perform a preliminary check to verify the customers complaint. Refer to GENERAL DIAGNOSIS .

Start diagnosis

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

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

Fig 1: Identifying Cover From Fuel Delivery Unit

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

Fig 2: Disconnecting Electrical Harness Connector From Fuel Delivery Unit

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-- 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).

Fig 3: Identifying Jumper Cable From Electrical Test Lead Set Connected To Fuel Delivery Unit Terminal And Vehicle Ground

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

NOTE:

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:

Fig 4: Checking Electrical Circuit Between Terminals And Of Fuel Delivery Unit For Resistance

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-- 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.