Test Procedure

-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

-- Remove the right rear wheel housing liner. Refer to the Repair Information.

-- Disconnect the Leak Detection Pump (LDP) -V144- electrical harness connector.

Checking internal resistance

-- Using a multimeter, check the Leak Detection Pump (LDP) -V144- for resistance as follows:

Leak Detection Pump (LDP) -V144- Electrical Connector Terminals	Specified Values
1 to 2	134 to 153 Ω
1 to 3	134 to 153 Ω
1 to 4	99 to 118 Ω

If any of the specified values were Not obtained:

-- Replace the Leak Detection Pump (LDP) --V144--. Refer to the Repair Information.

If the specified values were obtained:

Checking voltage supply

NOTE: The voltage for the Leak Detection Pump (LDP) --V144-- is supplied via the Fuel Pump Relay (J17).

-- Using a multimeter, check the Leak Detection Pump (LDP) --V144-- electrical harness connector terminal 4 for voltage. Connect the negative lead to engine ground.

-- Start the engine.

Specified value: Battery voltage.

-- Switch the ignition Off.

If the specified value was Not obtained:

-- Using a multimeter, check the Leak Detection Pump (LDP) --V144-- wiring from terminal 4 to the J17 Fuel Pump Relay. Refer to appropriate Wiring Diagrams for pin locations.

Specified value: 1.0 Ω max.

If the specified value was Not obtained:

-- Check the wiring for high resistance, short to ground or an open circuit.

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

-- If necessary, repair the faulty wiring connection.

If the specified voltage was obtained: