Mitsubishi Outlander GS45X. Manual - part 1711

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-149

STEP 2. Check the installation of the transaxle control 
cable, damping device, and sound isolation device.
Q: Is the check result normal?

YES : Go to Step 3.
NO :  Repair the failure, and perform adjustment.

STEP 3. Check the abnormal sound.
Q: Does the abnormal sound change in accordance with 

the vehicle speed?
YES : Go to Step 5.
NO :  Go to Step 4.

STEP 4. Check the abnormal sound.
Q: Does the abnormal sound change in accordance with 

the throttle valve opening? Or is it the transmission 
fluid sound especially caused at start-up?
YES : Replace the torque converter.
NO :  Go to Step 5.

STEP 5. Compare with another same model vehicle.
Q: Is there a difference from the same model vehicle?

YES : Go to Step 6.
NO :  The procedure is complete.

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.

INSPECTION PROCEDURE 13: Abnormal sound occurs during gear shift.

.

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

• Abnormal incoming route of sound: Installation of 

transaxle control cable, damping device, sound 
isolation device

• A/T failure: Driving force transmission system 

(gear), hydraulic system (valve body assembly, 
hydraulic circuit)

NOTE: 

.

Inspection items for abnormal sound

1. Check of sound source and incoming route (radi-

ated sound, propagation sound, resonance, etc.), 
and measurement at driver's seat, front passen-
ger's seat, and rear passenger's seat

2. Change of sound during cold and after warm up 

(Change of fluid, and hydraulic pressure)

3. Change of sound with the throttle valve opening 

(engine output change, hydraulic pressure 
change)

4. Change of sound on a flat road, upslope, and 

downslope

5. Check of tone

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-150

DIAGNOSIS

STEP 1. Check the installation of the transaxle control 
cable, damping device, and sound isolation device.
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. 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.

INSPECTION PROCEDURE 14: Engine stall

.

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

• Engine system failure

• Malfunction of the transmission fluid

• Malfunction of the torque converter

• A/T failure: Hydraulic system (valve body assem-

bly), 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. Check the transmission fluid.
Check the transmission fluid for burning, fouling, and foreign 
material.
Q: Is the check result normal?

YES : Go to Step 3.
NO :  Go to Step 6.

STEP 3. Check the transmission fluid level.
Check if the transmission fluid level is adequate.
Q: Is the check result normal?

YES : Go to Step 4.
NO :  Check and repair the leakage point of the 

transmission fluid, add the transmission fluid, and 
then go to Step 4 .

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-151

STEP 4. Perform a hydraulic test.
Refer to 

P.23C-26

.

Q: Is the check result normal?

YES : Go to Step 5.
NO :  Go to Step 6.

STEP 5. Compare with another same model vehicle.
Q: Is there a difference from the same model vehicle?

YES : Go to Step 6.
NO :  The procedure is complete.

STEP 6. Retest the system.
Does the engine stall occur again?
Q: Is the check result normal?

YES : Replace the transaxle assembly.
NO :  The procedure is complete.

INSPECTION PROCEDURE 15: Oil leaks from the air breather.

.

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

• Poor adjustment of the transmission fluid level

• A/T failure: Driving force transmission system

DIAGNOSIS

STEP 1. Check the transmission fluid.
Check the transmission fluid for burning, fouling, and foreign 
material.
Q: Is the check result normal?

YES : Go to Step 2.
NO :  Replace the transaxle assembly.

STEP 2. Check the transmission fluid level.
Check if the transmission fluid level is adequate.
Q: Is the check result normal?

YES : Go to Step 3.
NO :  Check and repair the leakage point of the 

transmission fluid, add the transmission fluid, and 
then go to Step 3 .

STEP 3. Perform a hydraulic test.
Refer to 

P.23C-26

.

Q: Is the check result normal?

YES : The procedure is complete.
NO :  Replace the transaxle assembly.

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-152

INSPECTION PROCEDURE 16: The starter does not rotate at the "P" or "N" range. (The engine does 
not start.)

.

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

• Engine system failure

• Poor adjustment of transaxle control cable

• Poor adjustment of transmission range switch

• Failure of the transmission range switch main unit

• The starter electric wiring

• Damaged harness or connector

• Malfunction of the TCM

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. Check the transaxle control cable.
Check the installation of the transaxle control cable.
Q: Is the check result normal?

YES : Go to Step 3.
NO :  Adjust the transaxle control cable Refer to 

P.23C-269

.

STEP 3. Check and adjust the transmission range switch.
Refer to 

P.23C-269

, 

P.23C-269

.

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 electric system.
Check the starter-related wiring for poor insertion of connector 
or open circuit.
Q: Is the check result normal?

YES : Replace the TCM.
NO :  Repair the failure, and perform adjustment.