Test Procedure

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

Checking internal resistance

-- Using a multimeter, check the Fuel Injector -- electrical terminals 1 to 2 for resistance.

Specified value: 12.0 to 20.0 Ω (at approx. 20° C)

If the specified value was Not obtained:

-- Replace the malfunctioning Fuel Injector --. Refer to the Repair Information.

If the specified value was obtained:

Checking activation and wiring

-- Connect a 12 V diode test lamp to the electrical harness connector terminals 1 and 2 of the Fuel Injector -- to be tested.

-- Operate the starter and test the activation of the Fuel Injector --.

LED should flicker.

-- Switch the ignition OFF.

If LED does not flicker:

-- Remove the Engine Control Module -J623-. Refer to the Repair Information.

-- Using a multimeter, check the Fuel Injector -- electrical harness connector terminals to the Engine Control Module -J623- electrical harness connector T60 terminals for an open circuit.

Component	Fuel Injector -- electrical harness connector terminals:	Engine Control Module -J623- electrical connector T60 terminals:
Cylinder 1 Fuel Injector -N30-	1	31
	2	33
Cylinder 2 Fuel Injector -N31-	1	47
	2	49
Cylinder 3 Fuel Injector -N32-	1	32
	2	34
Cylinder 4 Fuel Injector -N33-	1	46
	2	48

Specified value: 1.5 Ω Max.

If the specified value was Not obtained:

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

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

-- If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring:

-- Replace the Engine Control Module -J623-. Refer to the Repair Information.