Mitsubishi Montero (2004+). Manual - part 716

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-121

STEP 16. Check the harness wiring from ETACS-ECU 
connector D-222 (terminal 17) to rear passenger's door 
lock actuator (LH) connector H-13 (terminal 2).

AC204174

CONNECTOR : D-222

AB

1

2

3

5

6

4

9 8

121110

13

15 14

16

17

7

19

20

18

JUNCTION BLOCK SIDE

D-222

AC000237AK

CONNECTOR: H-13

REAR DOOR <LH>

1

2

3

4

5

6

H-13 (B)

H-13 (B)

(HARNESS SIDE)

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-122

NOTE: Also check junction block connector D-217 and inter-
mediate connectors D-125 and F-12 for loose, corroded, or 
damaged terminals, or terminals pushed back in the connector. 
If junction block connector D-217 or intermediate connector 
D-125 or F-12 is damaged, repair or replace the damaged com-
ponent(s) as described in GROUP 00E, Harness Connector 
Inspection

P.00E-2

.

Q: Is the harness wiring from ETACS-ECU connectors 

D-222 (terminal 17) to rear passenger's door lock 
actuator (LH) connector H-13 (terminal 2) in good 
condition?
YES : Replace the ETACS-ECU. Verify that all the doors 

can be locked and unlocked normally.

NO :  The harness wiring may be damaged or the 

connectors may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the harness wiring as necessary. After repairs 
have been made, verify that all the doors can now be 
locked and unlocked normally.

AC203859 AD

CONNECTOR: D-125

D-125

D-125

AC203850

CONNECTOR: D-217

AH

D-217

JUNCTION BLOCK 
(FRONT VIEW)

D-217

1

8 9 10 11

13 14 15

12

2 3 4

5 6 7

AC204484

AB

CONNECTOR: F-12

F-12

F-12

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-123

STEP 17. Check rear passenger’s door lock actuator (RH) 
connector H-21 for loose, corroded or damaged terminals, 
or terminals pushed back in the connector. 
Q: Is rear passenger’s seat door lock actuator (RH) 

connector H-21 in good condition?
YES : Go to Step 18.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. After repairs have been made, verify that all 

the doors can now be locked and unlocked normally.

STEP 18. Check the rear passenger's door lock actuator 
(RH).

1. Remove the rear passenger’s door lock actuator (RH), and 

check it. Refer to GROUP 42 

− Door Handle and Latch 

P.42-41

.

2. Follow the table below to check the rear passenger's door 

lock actuator (RH) for correct operation.

Q: Is the rear passenger's seat door lock actuator (RH) 

normal?
YES : Go to Step 19.
NO :  Replace the rear passenger’s seat door lock actuator 

(RH). Verify that all the doors can be locked and 
unlocked normally.

AC000316 AJ

CONNECTOR: H-21

REAR DOOR <RH>

1

2

3

4

5

6

H-21 (B)

H-21 (B)

(HARNESS SIDE)

LEVER 
POSITION

BATTERY 
CONNECTION

LEVER 
OPERATION

At the 
"LOCK" 
position

• Connect terminal 3 

to the positive 
battery terminal

• Connect terminal 2 

to the negative 
battery terminal

The lever moves 
from the "LOCK" 
position to the 
"UNLOCK" position.

At the 
"UNLOCK" 
position

• Connect terminal 2 

to the positive 
battery terminal

• Connect terminal 3 

to the negative 
battery terminal

The lever moves 
from the "UNLOCK" 
position to the 
"LOCK" position.

AC201170

1 2 3

4 5 6

LEVER

LOCK

UNLOCK

VIEW A

A

AB

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-124

STEP 19. Check ETACS-ECU connector D-222 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector. 
Q: Is ETACS-ECU connector D-222 in good condition?

YES : Go to Step 20.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. After repairs have been made, verify that all 

the doors can now be locked and unlocked normally.

STEP 20. Check the harness wiring from ETACS-ECU 
connector D-222 (terminal 4) to rear passenger's door lock 
actuator (RH) connector H-21 (terminal 3).

AC204174

CONNECTOR : D-222

AB

1

2

3

5

6

4

9 8

121110

13

15 14

16

17

7

19

20

18

JUNCTION BLOCK SIDE

D-222

AC204174

CONNECTOR : D-222

AB

1

2

3

5

6

4

9 8

121110

13

15 14

16

17

7

19

20

18

JUNCTION BLOCK SIDE

D-222

AC000316 AJ

CONNECTOR: H-21

REAR DOOR <RH>

1

2

3

4

5

6

H-21 (B)

H-21 (B)

(HARNESS SIDE)