Inspection Procedure 3

INSPECTION PROCEDURE 3: The acceleration is poor.

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

- Malfunction of the engine

- Malfunction of the TCM

- TCM power supply or ground failure

- Malfunction of the torque converter

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

DIAGNOSIS

STEP 1. Check the engine performance.

Q. Is the check result normal?

YES Go to Step 2.
NO Repair the failure, and perform adjustment.
STEP 2. Compare with another same model vehicle.

Q. Is there a difference from the same model vehicle?

YES Go to Step 3.
NO The procedure is complete.
STEP 3. Check the TCM power supply and ground.

Q. Is the check result satisfactory?

YES Go to Step 4.
NO Repair the wiring.
STEP 4. Replace the TCM.

Q. Is the failure resolved?

YES The procedure is complete.
NO Go to Step 5.
STEP 5. Check the transmission fluid.

Check the transmission fluid for seizure, fouling, and foreign material. Also, check that the fluid level is adequate.

Q. Is the check result normal?

YES Go to Step 6.
NO Go to Step 7.
STEP 6. Replace the torque converter.

Q. Is the failure resolved?

YES The procedure is complete.
NO Go to Step 7.
STEP 7. 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.