Mitsubishi Montero (2004+). Manual - part 989

A/T FAULTY OPERATION PREVENTION MECHANISM DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-531

INSPECTION PROCEDURE 4: Selector Lever cannot be Moved from "P" to "R" Position Smoothly.

.

TECHNICAL DESCRIPTION (COMMENT)
Key interlock cable, shift lock cable, transmission 
control cable, lock cam, or selector lever assembly 
may be defective.

.

TROUBLESHOOTING HINTS

• Malfunction of key interlock cable

• Malfunction of shift lock cable

• Malfunction of transmission control cable

• Malfunction of lock cam

• Malfunction of selector lever assembly

DIAGNOSIS

STEP 1. Check the connection of lock cam and 
key interlock cable.

Q: Is the connection of lock cam and key interlock 

cable in good condition?
YES : 

Go to Step 2.

NO : 

Repair the connection of lock cam and shift 
lock cable. Check that the selector lever can 
be moved from "P" position to "R" position 
smoothly.

STEP 2. Check the connection of selector lever 
assembly and transmission control cable.

Q: Is the connection of selector lever assembly and 

transmission control cable in good condition?
YES : 

Go to Step 3.

NO : 

Repair the connection of selector lever 
assembly and transmission control cable. 
Check that the selector lever can be moved 
from "P" position to "R" position smoothly.

STEP 3. Check the fit of the lock cam.

Q: Is the lock cam installed correctly?

YES : 

Go to Step 4.

NO : 

Install the lock cam correctly. Refer to 

P.23A-559

. Check that the selector lever 

can be moved from "P" position to "R" 
position smoothly.

STEP 4. Check the lock cam.

Q: Is the lock cam in good condition?

YES : 

Go to Step 5.

NO : 

Replace the lock cam. Refer to 

P.23A-559

. 

Check that the selector lever can be moved 
from "P" position to "R" position smoothly.

STEP 5. Check the fit of the shift lock cable.

Q: Is the shift lock cable installed correctly?

YES : 

Go to Step 6.

NO : 

Install the shift lock cable correctly. Refer to 

P.23A-561

. Check that the selector lever 

can be moved from "P" position to "R" 
position smoothly.

STEP 6. Check the shift lock cable.

Q: Is the shift lock cable in good condition?

YES : 

Go to Step 7.

NO : 

Replace the shift lock cable. Refer to 

P.23A-561

. Check that the selector lever 

can be moved from "P" position to "R" 
position smoothly.

STEP 7. Check the fit of the key interlock cable.

Q: Is the key interlock cable installed correctly?

YES : 

Go to Step 8.

NO : 

Install the key interlock cable correctly. 
Refer to 

P.23A-561

. Check that the selector 

lever can be moved from "P" position to "R" 
position smoothly.

STEP 8. Check the key interlock cable.

Q: Is the key interlock cable in good condition?

YES : 

Go to Step 9.

NO : 

Replace the key interlock cable. Refer to 

P.23A-561

. Check that the selector lever 

can be moved from "P" position to "R" 
position smoothly.

STEP 9. Check the fit of the transmission control 
cable.

Q: Is the transmission control cable installed 

correctly?
YES : 

Go to Step 10.

NO : 

Install the transmission control cable 
correctly. Refer to 

P.23A-556

. Check that 

the selector lever can be moved from "P" 
position to "R" position smoothly.

A/T FAULTY OPERATION PREVENTION MECHANISM DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-532

STEP 10. Check the transmission control cable.

Q: Is the transmission control cable in good 

condition?
YES : 

Repair or replace the selector lever 

assembly. Refer to 

P.23A-556

 and 

P.23A-559

. Check that the selector lever 

can be moved from "P" position to "R" 
position smoothly.

NO : 

Replace the transmission control cable. 
Refer to 

P.23A-556

. Check that the selector 

lever can be moved from "P" position to "R" 
position smoothly.

INSPECTION PROCEDURE 5: Selector Lever cannot be Moved from "R" Position to "P" Position.

.

TECHNICAL DESCRIPTION (COMMENT)
Selector lever assembly, transmission control cable, 
or lock cam may be defective.

.

TROUBLESHOOTING HINTS

• Malfunction of selector lever assembly

• Malfunction of transmission control cable

• Malfunction of lock cam

DIAGNOSIS

STEP 1. Check the connection of selector lever 
assembly and transmission control cable.

Q: Is the connection of selector lever assembly and 

transmission control cable in good condition?
YES : 

Go to Step 2.

NO : 

Repair the connection of selector lever 
assembly and transmission control cable. 
Check that the selector lever can be moved 
from "R" position to "P" position.

STEP 2. Check the fit of the lock cam.

Q: Is the lock cam installed correctly?

YES : 

Go to Step 3.

NO : 

Install the lock cam correctly. Refer to 

P.23A-559

. Check that the selector lever 

can be moved from "R" position to "P" 
position.

STEP 3. Check the lock cam.

Q: Is the lock cam in good condition?

YES : 

Go to Step 4.

NO : 

Replace the lock cam. Refer to 

P.23A-559

. 

Check that the selector lever can be moved 
from "R" position to "P" position.

STEP 4. Check the fit of the transmission control 
cable.

Q: Is the transmission control cable installed 

correctly?
YES : 

Go to Step 5.

NO : 

Install the transmission control cable 
correctly. Refer to 

P.23A-556

. Check that 

the selector lever can be moved from "R" 
position to "P" position.

STEP 5. Check the transmission control cable.

Q: Is the transmission control cable in good 

condition?
YES : 

Repair or replace the selector lever 

assembly. Refer to 

P.23A-556

 and 

P.23A-559

. Check that the selector lever 

can be moved from "P" position to "R" 
position smoothly.

NO : 

Replace the transmission control cable. 
Refer to 

P.23A-556

. Check that the selector 

lever can be moved from "R" position to "P" 
position.

A/T FAULTY OPERATION PREVENTION MECHANISM DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-533

INSPECTION PROCEDURE 6: Ignition Key cannot be Turned to "LOCK" (OFF) Position when Selector 
Lever is at "P" Position.

.

TECHNICAL DESCRIPTION (COMMENT)
Lock cam, steering lock cylinder assembly, transmis-
sion control cable, or key interlock cable may be 
defective.

.

TROUBLESHOOTING HINTS

• Malfunction of lock cam

• Malfunction of key interlock cable

• Malfunction of transmission control cable

• Malfunction of steering lock cylinder assembly

DIAGNOSIS

STEP 1. Check the connection of lock cam and 
key interlock cable.

Q: Is the connection of lock cam and key interlock 

cable in good condition?
YES : 

Go to Step 2.

NO : 

Repair the connection of lock cam and shift 
lock cable. Check that the ignition key can 
not be turned to the "LOCK" (OFF) position 
with the selector lever at "P" position.

STEP 2. Check the fit of the lock cam.

Q: Is the lock cam installed correctly?

YES : 

Go to Step 3.

NO : 

Install the lock cam correctly. Refer to 

P.23A-559

. Check that the selector lever 

can be moved from "R" position to "P" 
position.

STEP 3. Check the lock cam.

Q: Is the lock cam in good condition?

YES : 

Go to Step 4.

NO : 

Replace the lock cam. Refer to 

P.23A-559

. 

Check that the selector lever can be moved 
from "R" position to "P" position.

STEP 4. Check the fit of the key interlock cable.

Q: Is the key interlock cable installed correctly?

YES : 

Go to Step 5.

NO : 

Install the key interlock cable correctly. 
Refer to 

P.23A-561

. Check that the ignition 

key can not be turned to the "LOCK" (OFF) 
position with the selector lever at "P" 
position.

STEP 5. Check the key interlock cable.

Q: Is the key interlock cable in good condition?

YES : 

Go to Step 6.

NO : 

Replace the key interlock cable. Refer to 

P.23A-561

. Check that the ignition key can 

not be turned to the "LOCK" (OFF) position 
with the selector lever at "P" position.

STEP 6. Check the fit of the transmission control 
cable.

Q: Is the transmission control cable installed 

correctly?
YES : 

Replace the steering lock cylinder 

assembly. Refer to 

P.37A-22

 and 

P.37A-25

. 

Check that the ignition key can not be 
turned to the "LOCK" (OFF) position with 
the selector lever at "P" position.

NO : 

Install the transmission control cable 
correctly. Refer to 

P.23A-559

. Check that 

the ignition key can not be turned to the 
"LOCK" (OFF) position with the selector 
lever at "P" position.

A/T FAULTY OPERATION PREVENTION MECHANISM DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-534

INSPECTION PROCEDURE 7: Ignition Key can be Turned to "LOCK" (OFF) Position when Selector at 
Positions other than "P" Position.

.

TECHNICAL DESCRIPTION (COMMENT)
Lock cam, steering lock cylinder assembly, transmis-
sion control cable, or key interlock cable may be 
defective.

.

TROUBLESHOOTING HINTS

• Malfunction of lock cam

• Malfunction of steering lock cylinder assembly

• Malfunction of transmission control cable

• Malfunction of key interlock cable

DIAGNOSIS

STEP 1. Check the connection of lock cam and 
key interlock cable.

Q: Is the connection of lock cam and key interlock 

cable in good condition?
YES : 

Go to Step 2.

NO : 

Repair the connection of lock cam and shift 
lock cable. Check that the ignition key can 
not be turned to the "LOCK" (OFF) position 
with the selector lever at any position other 
than "P" position.

STEP 2. Check the fit of the lock cam.

Q: Is the lock cam installed correctly?

YES : 

Go to Step 3.

NO : 

Install the lock cam correctly. Refer to 

P.23A-559

. Check that the ignition key can 

not be turned to the "LOCK" (OFF) position 
with the selector lever at any position other 
than "P" position.

STEP 3. Check the lock cam.

Q: Is the lock cam in good condition?

YES : 

Go to Step 4.

NO : 

Replace the lock cam. Refer to 

P.23A-559

. 

Check that the ignition key can not be 
turned to the "LOCK" (OFF) position with 
the selector lever at any position other than 
"P" position.

STEP 4. Check the fit of the key interlock cable.

Q: Is the key interlock cable installed correctly?

YES : 

Go to Step 5.

NO : 

Install the key interlock cable correctly. 
Refer to 

P.23A-561

. Check that the ignition 

key can not be turned to the "LOCK" (OFF) 
position with the selector lever at any 
position other than "P" position.

STEP 5. Check the key interlock cable.

Q: Is the key interlock cable in good condition?

YES : 

Go to Step 6.

NO : 

Replace the key interlock cable. Refer to 

P.23A-561

. Check that the ignition key can 

not be turned to the "LOCK" (OFF) position 
with the selector lever at any position other 
than "P" position.

STEP 6. Check the fit of the transmission control 
cable.

Q: Is the transmission control cable installed 

correctly?
YES : 

Replace the steering lock cylinder 

assembly. Refer to 

P.37A-22

 and 

P.37A-25

. 

Check that the ignition key can not be 
turned to the "LOCK" (OFF) position with 
the selector lever at any position other than 
"P" position.

NO : 

Install the transmission control cable 
correctly. Refer to 

P.23A-559

. Check that 

the ignition key can not be turned to the 
"LOCK" (OFF) position with the selector 
lever at any position other than "P" position.