Mitsubishi Galant (2004+). Manual - part 701

A/T FAULTY OPERATION PREVENTION MECHANISM DIAGNOSIS

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AUTOMATIC TRANSAXLE

23A-355

A/T FAULTY OPERATION PREVENTION MECHANISM 

DIAGNOSIS

INTRODUCTION TO A/T KEY INTERLOCK AND SHIFT LOCK MECHANISMS

M1232001600226

If the key interlock and shift lock mechanisms indi-
cates a malfunction, the key interlock cable, the shift 
lock cable, or the selector lever assembly may be 
defective. In this case, follow troubleshooting below.

A/T KEY INTERLOCK AND SHIFT LOCK MECHANISMS DIAGNOSTIC 
TROUBLESHOOTING STRATEGY

M1232001700223

Use these steps to plan your diagnostic strategy. If 
your follow then carefully, you will be sure that you 
have exhausted most of the possible ways to find 
automatic transaxle key interlock and shift lock 
mechanisms fault.
1. Gather information from the customer.

2. Verify that the condition described by the 

customer exists.

3. Find the malfunction by following the Symptom 

Chart.

4. Verify malfunction is eliminated.

SYMPTOM CHART

M1232001800413

SYMPTOM

INSPECTION 
PROCEDURE

REFERENCE 
PAGE

Selector lever can be moved from "P" to "R" position without depressing 
brake pedal when ignition key is at any position other than "LOCK" (OFF) 
position.

1

 

P.23A-356

Selector lever cannot be moved from "P" to "R" position with brake pedal 
depressed when ignition key is at any position other than "LOCK" (OFF) 
position.

2

 

P.23A-357

Selector lever can be moved from "P" to "R" position with brake pedal 
depressed when ignition key is at "LOCK" (OFF) position.

3

 

P.23A-359

Selector lever cannot be moved from "P" to "R" position smoothly.

4

 

P.23A-360

Selector lever cannot be moved from "P" to "R" position.

5

 

P.23A-361

Ignition key cannot be turned to "LOCK" (OFF) position when selector 
lever is at "P" position.

6

 

P.23A-362

Ignition key can be turned to "LOCK" (OFF) position when selector lever 
is at any position other than "P" position.

7

 

P.23A-363

A/T FAULTY OPERATION PREVENTION MECHANISM DIAGNOSIS

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AUTOMATIC TRANSAXLE

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SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Selector Lever can be Moved from "P" to "R" Position without 
Depressing Brake Pedal when Ignition Key is at any Position Other than "LOCK" (OFF) Position.

.

TECHNICAL DESCRIPTION (COMMENT)
Lock cam or shift lock cable may be defective.

.

TROUBLESHOOTING HINTS

• Malfunction of lock cam

• Malfunction of shift lock cable

DIAGNOSIS

STEP 1. Check the fit of the lock cam.

Q: Is the lock cam installed correctly?

YES : 

Go to Step 2.

NO : 

Install the lock cam correctly. Refer to 

P.23A-386

. When the brake pedal is 

released with the ignition key at other 
positions than "LOCK" (OFF) position, 
check that the selector lever can not be 
moved from "P" position to "R" position.

STEP 2. Check the lock cam.

Q: Is the lock cam in good condition?

YES : 

Go to Step 3.

NO : 

Replace the lock cam. Refer to 

P.23A-386

. 

When the brake pedal is released with the 
ignition key at other positions than "LOCK" 
(OFF) position, check that the selector lever 
can not be moved from "P" position to "R" 
position.

STEP 3. Check the fit of the shift lock cable.

Q: Is the shift lock cable installed correctly?

YES : 

Go to Step 4.

NO : 

Install the shift lock cable correctly. Refer to 

P.23A-389

. When the brake pedal is 

released with the ignition key at other 
positions than "LOCK" (OFF) position, 
check that the selector lever can not be 
moved from "P" position to "R" position.

STEP 4. Check the shift lock cable.

Q: Is the shift lock cable in good condition?

YES : 

No action to be taken.

NO : 

Replace the shift lock cable. Refer to 

P.23A-389

. When the brake pedal is 

released with the ignition key at other 
positions than "LOCK" (OFF) position, 
check that the selector lever can not be 
moved from "P" position to "R" position.

A/T FAULTY OPERATION PREVENTION MECHANISM DIAGNOSIS

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AUTOMATIC TRANSAXLE

23A-357

INSPECTION PROCEDURE 2: Selector Lever cannot be Moved from "P" to "R" Position with Brake 
Pedal Depressed when Ignition Key is at any Position Other than "LOCK" (OFF) Position.

.

TECHNICAL DESCRIPTION (COMMENT)
Selector lever assembly, shift lock cable, key inter-
lock cable, transaxle control cable, or lock cam may 
be defective.

.

TROUBLESHOOTING HINTS

• Malfunction of selector lever assembly

• Malfunction of shift lock cable

• Malfunction of key interlock cable

• Malfunction of transaxle control cable

• Malfunction of lock cam

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. When 
the brake pedal is depressed with the 
ignition key at other positions than "LOCK" 
(OFF) position, check that the selector lever 
can be moved from "P" position to "R" 
position.

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

Q: Is the connection of selector lever assembly and 

shift transaxle control cable in good condition?

YES : 

Go to Step 3.

NO : 

Repair the connection of selector lever 
assembly and transaxle control cable. When 
the brake pedal is depressed with the 
ignition key at other positions than "LOCK" 
(OFF) position, check that the selector lever 
can be moved from "P" position to "R" 
position.

STEP 3. Check the fit of the shift lock cable.

Q: Is the shift lock cable installed correctly?

YES : 

Go to Step 4.

NO : 

Install the shift lock cable correctly. Refer to 

P.23A-389

. When the brake pedal is 

depressed with the ignition key at other 
positions than "LOCK" (OFF) position, 
check that the selector lever can be moved 
from "P" position to "R" position.

STEP 4. Check the shift lock cable.

Q: Is the shift lock cable in good condition?

YES : 

Go to Step 5.

NO : 

Replace the shift lock cable. Refer to 

P.23A-389

. When the brake pedal is 

depressed with the ignition key at other 
positions than "LOCK" (OFF) position, 
check that the selector lever can be moved 
from "P" position to "R" position.

STEP 5. Check the fit of the key interlock cable.

Q: Is the key interlock cable installed correctly?

YES : 

Go to Step 6.

NO : 

Install the key interlock cable correctly. 
Refer to 

P.23A-389

. When the brake pedal 

is depressed with the ignition key at other 
positions than "LOCK" (OFF) position, 
check that the selector lever can be moved 
from "P" position to "R" position.

STEP 6. Check the key interlock cable.

Q: Is the key interlock cable in good condition?

YES : 

Go to Step 7.

NO : 

Replace the key interlock cable. Refer to 

P.23A-389

. When the brake pedal is 

depressed with the ignition key at other 
positions than "LOCK" (OFF) position, 
check that the selector lever can be moved 
from "P" position to "R" position.

STEP 7. Check the fit of the transaxle control 
cable.

Q: Is the transaxle control cable installed correctly?

YES : 

Go to Step 8.

NO : 

Install the transaxle control cable correctly. 
Refer to 

P.23A-384

. When the brake pedal 

is depressed with the ignition key at other 
positions than "LOCK" (OFF) position, 
check that the selector lever can be moved 
from "P" position to "R" position.

A/T FAULTY OPERATION PREVENTION MECHANISM DIAGNOSIS

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AUTOMATIC TRANSAXLE

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STEP 8. Check the transaxle control cable.

Q: Is the transaxle control cable in good condition?

YES : 

Repair or replace the selector lever 

assembly. Refer to 

P.23A-384

 and 

P.23A-386

. When the brake pedal is 

depressed with the ignition key at other 
positions than "LOCK" (OFF) position, 
check that the selector lever can be moved 
from "P" position to "R" position.

NO : 

Replace the transaxle control cable. Refer 
to 

P.23A-384

. When the brake pedal is 

depressed with the ignition key at other 
positions than "LOCK" (OFF) position, 
check that the selector lever can be moved 
from "P" position to "R" position.