Mitsubishi Montero (2004+). Manual - part 946

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-359

STEP 3. Check shift switch assembly connector E-115 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Are the connector and terminals in good condition?

YES : Go to Step 4.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

STEP 4. Check harness for open circuit between 
intermediate connector E-11 terminal 14 and shift switch 
assembly connector E-115 terminal 3.
Q: Is the harness wire in good condition?

YES : Go to Step 25.
NO :  Repair or replace the harness wire.

AC204176

CONNECTOR : E-115

BE

8

3

4 5

1

2

6 7

AC204194

CONNECTORS : E-11, E-115

E-11

E-11

BJ

E-115

E-115

3

10

16

9

7 8

6

1

4

2

5

11

14

1213

15

8

3

4 5

1

2

6 7

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-360

STEP 5. Using scan tool MB991958, check data list item 61: 
Transmission Range Switch.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958. 
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to data reading mode.

• Item 61: Transmission Range Switch.

• Scan tool MB991958 should display "D" when the 

transmission range is "D" range.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the switch operating properly?

YES : Go to Step 6.
NO :  Refer to 

P.23A-121

, 

P.23A-150

, DTCs 27, 28: 

Transmission Range Switch System.

STEP 6. Check the shift switch assembly.
Refer to 

P.23A-559

, Transmission Control.

Q: Is the switch operating properly?

YES : Go to Step 7.
NO :  Replace the shift switch assembly. Refer to 

P.23A-559

, Transmission Control.

STEP 7. Check shift switch assembly connector E-115 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Are the connectors and terminals in good condition?

YES : Go to Step 8.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

AC307591 AC

MB991911

MB991824

MB991827

AC307591

DATA LINK

CONNECTOR

AC204176

CONNECTOR : E-115

BE

8

3

4 5

1

2

6 7

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-361

STEP 8. Measure the power supply voltage at shift switch 
assembly connector E-115.
(1) Disconnect connector E-115 and measure at the harness 

side.

(2) Turn the ignition switch to the "ON" position.
(3) Transmission range should be "D" range.

(4) Measure the voltage between terminal 1 and ground.

• The voltage should measure battery positive voltage.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage?

YES : Go to Step 11.
NO :  Go to Step 9.

STEP 9. Check transmission range switch connector C-04 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Are the connectors and terminals in good condition?

YES : Go to Step 10.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

AC204176

CONNECTOR : E-115

BE

8

3

4 5

1

2

6 7

AC204918

8

3

7

2

5

6

4

1

AC204918 CH

E-115 HARNESS CONNECTOR : 
COMPONENT SIDE

AC204395

CONNECTOR : C-04

AF

C-04 (B)

4
9

5

10

3
8

2
7

6

1

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-362

STEP 10. Check harness for open circuit between 
transmission range switch connector C-04 terminal 3 and 
shift switch assembly connector E-115 terminal 1.
Q: Is the harness wire in good condition?

YES : Go to Step 25.
NO :  Repair or replace the harness wire.

AC204395

CONNECTOR : C-04

AF

C-04 (B)

4
9

5

10

3
8

2
7

6

1

AC204176

CONNECTOR : E-115

BE

8

3

4 5

1

2

6 7