Inspection Procedure 5

INSPECTION PROCEDURE 5: Gears cannot be shifted at all, or a certain gear shift (1st to 2nd, 2nd to 3rd, etc.) is not made.

TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CONDITION:)

- Non-genuine device installation: TCM voltage drop

- Improper fixing of the electric wiring, poor insertion of the connector, poor contact of the inside PIN

- Poor adjustment of transmission range switch

- Failure of the transmission range switch main unit

- Malfunction of the TCM

- TCM power supply or ground failure

- A/T failure: Hydraulic system (valve body assembly), driving force transmission system (clutch/brake)

DIAGNOSIS

STEP 1. Check the electrical equipment.

Q. Is the non-genuine electrical equipment (car navigator, audio devices, etc.) installed?

YES Remove the power supply wiring and signal lines of the equipment.
NO Go to Step 2
STEP 2. Check the electric system.

Check if there is an improper fixing of the electric wiring, poor insertion of the connector, and poor contact.

Q. Is the check result normal?

YES Go to Step 3.
NO Adjust and repair.
STEP 3. Check and adjust the transmission range switch.

Refer to Testing and Inspection, Adjustments.

If the transmission range switch has a failure, replace it, and then check the trouble symptom again.

Q. Is the check result normal?

YES The procedure is complete.
NO Go to Step 4.
STEP 4. Check the TCM power supply and ground.

Q. Is the check result normal?

YES Go to Step 5.
NO Repair the wiring.
STEP 5. Replace the TCM.

Q. Is the failure resolved?

YES The procedure is complete.
NO Go to Step 6.
STEP 6. Remove the transaxle assembly from the vehicle.

Disassemble and check the transaxle assembly to check if there is a foreign material inside.

Q. Is the check result satisfactory?

YES Replace the transaxle assembly.
NO Replace the failure part.