Test Procedure

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

Start diagnosis

-- Raise the vehicle to gain access to the Transmission Control Module (TCM) -J743- electrical harness connector. Refer to the Repair Information.

-- Disconnect the Transmission Control Module (TCM) -J743- electrical harness connector.

NOTE: The Engine Control Module -J623- must remain connected for the following step.

-- Using a multimeter, check the Transmission Control Module (TCM) -J743- electrical harness connector terminals 10 to 15 for resistance.

Specified value: 60 to 72 Ω (at approx. 20°C)

If the specified value was not obtained:

-- Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground.

-- Check the wiring connection for damage, corrosion, loose or broken terminals.

-- If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring:

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

If the specified value was obtained: