Mitsubishi Montero (2002-2004). Manual - part 969

DIAGNOSTIC TROUBLE CODE PROCEDURES <TRANSFER>

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

23Ac-359

STEP 4. Check shift actuator connector C-09 and transfer-
ECU connector E-109 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 5.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-

2

.

STEP 5. Check harnesses for short circuit to ground 
between shift actuator connector C-09 terminals 2, 1 and 
transfer-ECU connector E-109 terminals 1, 3.
Q: Are the harnesses wire in good condition?

YES : Go to Step 8.
NO :  Repair or replace the harness wire.

AC204395

CONNECTOR : C-09

AH

C-09 (GR)

2

1

AC204176

CONNECTOR : E-109

BB

11 12

25

24

13

26

9

22

7

6

20

19

8

21

10

23

5

4

17

2

1

15

14

3

16

18

AC204395

CONNECTOR : C-09

AH

C-09 (GR)

2

1

AC204176

CONNECTOR : E-109

BB

11 12

25

24

13

26

9

22

7

6

20

19

8

21

10

23

5

4

17

2

1

15

14

3

16

18

DIAGNOSTIC TROUBLE CODE PROCEDURES <TRANSFER>

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

23Ac-360

STEP 6. Check shift actuator connector C-09 and transfer-
ECU connector E-109 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 7.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-

2

.

STEP 7. Check harnesses for open circuit between shift 
actuator connector C-09 terminals 2, 1 and transfer-ECU 
connector E-109 terminals 1, 3.
Q: Are the harnesses wire in good condition?

YES : Go to Step 8.
NO :  Repair or replace the harness wire.

AC204395

CONNECTOR : C-09

AH

C-09 (GR)

2

1

AC204176

CONNECTOR : E-109

BB

11 12

25

24

13

26

9

22

7

6

20

19

8

21

10

23

5

4

17

2

1

15

14

3

16

18

AC204395

CONNECTOR : C-09

AH

C-09 (GR)

2

1

AC204176

CONNECTOR : E-109

BB

11 12

25

24

13

26

9

22

7

6

20

19

8

21

10

23

5

4

17

2

1

15

14

3

16

18

DIAGNOSTIC TROUBLE CODE PROCEDURES <TRANSFER>

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

23Ac-361

STEP 8. Using scan tool MB991502, check data list item 10: 
Shift Actuator Amperage.

CAUTION

To prevent damage to scan tool MB991502, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Transmission range should be "N" range.
(4) Set scan tool MB991502 to data reading mode for item 10, 

Shift Actuator Amperage.

• When the operating transfer shift lever 2H → 4H, 4H → 

4HLc or 4HLc 

→ 4LLc, the display should be 0 ampere 

→ 0.2 − 1.5 ampere → 0 ampere.

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

YES : It can be assumed that this malfunction is intermittent. 

Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points 

− How to Cope with 

Intermittent Malfunction 

P.00-6

.

NO :  Replace the transfer-ECU.

DTC 44: Shift Actuator System (Overload)

.

Shift Actuator System Circuit
Refer to 

P.23Ac-349

.

.

CIRCUIT OPERATION
Refer to 

P.23Ac-349

.

.

DTC SET CONDITIONS
When the accumulated time to operate the shift actu-
ator exceeds five minutes, DTC 44 is set as the over-
load of the shift actuator.

.

TROUBLESHOOTING HINTS (The most likely 
causes for this code to be set are:)

• Malfunction of the shift actuator

• Damaged harness, connector

• Malfunction of the transfer-ECU

ACX01539AD

MB991502

16-PIN

DIAGNOSTIC TROUBLE CODE PROCEDURES <TRANSFER>

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

23Ac-362

DIAGNOSIS

Required Special Tool:

• MB991502: Scan Tool (MUT-II)

STEP 1. Using scan tool MB991502, check actuator test 
item 02 or 03: Shift Actuator.

CAUTION

To prevent damage to scan tool MB991502, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Transmission range should be "N" range.
(4) Set scan tool MB991502 to actuator testing mode for item 

02 or 03, Shift Actuator.

• The shift actuator operate.

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

YES : It can be assumed that this malfunction is intermittent. 

Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points 

− How to Cope with 

Intermittent Malfunction 

P.00-6

.

NO :  Go to Step 2.

STEP 2. Using scan tool MB991502, check data list item 12: 
Shift Actuator Voltage.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Transmission range should be "N" range.
(4) Set scan tool MB991502 to data reading mode for item 12, 

Shift Actuator Voltage.

• When the operating transfer shift lever 2H → 4H, 4H → 

4HLc or 4HLc 

→ 4LLc, the display should be 1/2 battery 

voltage 

→ battery positive voltage → 1.0 volt or less → 

1/2 battery voltage.

• When the operating transfer shift lever 4LLc → 4HLc, 

4HLc 

→ 4H or 4H → 2H, the display should be 1/2 bat-

tery voltage 

→ 1.0 volt or less → 1/2 battery voltage.

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

YES : It can be assumed that this malfunction is intermittent. 

Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points 

− How to Cope with 

Intermittent Malfunction 

P.00-6

.

NO :  Go to Step 3.

ACX01539AD

MB991502

16-PIN

ACX01539AD

MB991502

16-PIN