Inspection Procedure 2: Engine Does not Start

COMMENTS ON TROUBLE SYMPTOM

If the engine does not start when the selector lever is in P or N position, the cause is probably a malfunction of inhibitor switch system, transmission control cable, engine system, torque converter or oil pump.

PROBABLE CAUSES

Malfunction of inhibitor switch

Malfunction of transmission control cable

Malfunction of engine system

Malfunction of torque converter

Malfunction of oil pump

Malfunction of the engine-A/T-ECU

DIAGNOSIS PROCEDURE

STEP 1. MUT-II/III data list

Item 61: Inhibitor switch (Refer to data list reference table

Q: Is the check result normal?

YES: Go to Step 4

.
NO: Go to Step 2

STEP 2. Transmission control cable check

Check the transmission control cable and inhibitor switch for installation condition.

Q: Is the check result normal?

YES: Go to Step 3

.
NO: Adjust the positions of the transmission control cable and inhibitor switch (Refer to

STEP 3. Inhibitor switch system check

Refer to inspection procedure 16: Inhibitor switch system

<4G63, 4G64>,

< 4G69>.

Q: Is the check result normal?

YES: Go to Step 4

.
NO: Repair or replace the inhibitor switch system.

STEP 4. Engine system check

Refer to GROUP 13A, Troubleshooting

<4G63>, GROUP 13B, Troubleshooting

<4G64>, Refer to GROUP 13C, Troubleshooting

<4G69>.

Q: Is the check result normal?

YES: Go to Step 5

.
NO: Repair the engine system.

STEP 5. Engine-A/T-ECU replacement

Replace the engine-A/T-ECU.

Test drive the vehicle.

Verify that the condition described by the customer exists.

Q: Does a malfunction take place again?

YES: Go to Step 6

.
NO: The inspection is complete.

STEP 6. Torque converter check

Check for damaged drive plate, incorrect installation in the input shaft (inserted at an angle) or damaged splines.

Q: Is the check result normal?

YES: Check the oil pump for incorrect installation, damage and etc., and replace the oil pump assembly if necessary (The oil pump cannot be disassembled).
NO: If repair is possible, repair the damaged part. If repair is not possible because the splines on the drive plate or torque converter are damaged, replace it.



Inspection Procedure 2: Engine Does not Start


COMMENTS ON TROUBLE SYMPTOM If the engine does not start when the selector lever is in P or N position, the cause is probably a malfunction of inhibitor switch system, transmission control cable, engine system, torque converter or oil pump.
PROBABLE CAUSES Malfunction of inhibitor switch Malfunction of transmission control cable Malfunction of engine system Malfunction of torque converter Malfunction of oil pump Malfunction of the engine-A/T-ECU
DIAGNOSIS PROCEDURE

STEP 1. MUT-II/III data list Item 61: Inhibitor switch (Refer to data list reference table ). Q: Is the check result normal? YES: Go to Step 4. NO: Go to Step 2.
STEP 2. Transmission control cable check Check the transmission control cable and inhibitor switch for installation condition. Q: Is the check result normal? YES: Go to Step 3 . NO: Adjust the positions of the transmission control cable and inhibitor switch (Refer to ).
STEP 3. Inhibitor switch system check Refer to inspection procedure 16: Inhibitor switch system <4G63, 4G64>, < 4G69>. Q: Is the check result normal? YES: Go to Step 4. NO: Repair or replace the inhibitor switch system.
STEP 4. Engine system check Refer to GROUP 13A, Troubleshooting <4G63>, GROUP 13B, Troubleshooting <4G64>, Refer to GROUP 13C, Troubleshooting <4G69>. Q: Is the check result normal? YES: Go to Step 5. NO: Repair the engine system.
STEP 5. Engine-A/T-ECU replacement Replace the engine-A/T-ECU. Test drive the vehicle. Verify that the condition described by the customer exists. Q: Does a malfunction take place again? YES: Go to Step 6 . NO: The inspection is complete.
STEP 6. Torque converter check Check for damaged drive plate, incorrect installation in the input shaft (inserted at an angle) or damaged splines. Q: Is the check result normal? YES: Check the oil pump for incorrect installation, damage and etc., and replace the oil pump assembly if necessary (The oil pump cannot be disassembled). NO: If repair is possible, repair the damaged part. If repair is not possible because the splines on the drive plate or torque converter are damaged, replace it.