Mitsubishi Montero (2004+). Manual - part 717

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-125

NOTE: Also check junction block connector D-209 and inter-
mediate connector D-111 and F-23 for loose, corroded, or dam-
aged terminals, or terminals pushed back in the connector. If 
junction block connector D-209 or intermediate connector 
D-111 or F-23 are damaged, repair or replace the damaged 
component(s) as described in GROUP 00E, Harness Connec-
tor Inspection 

P.00E-2

.

Q: Is the harness wiring from ETACS-ECU connector D-222 

(terminal 4) to rear passenger's door lock actuator (RH) 
connector H-21 (terminal 3) in good condition?
YES : Go to Step 21.
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.

AC203860AC

D-111

CONNECTOR: D-111

D-111

AC203850

CONNECTOR: D-209

AE

D-209

D-209

JUNCTION BLOCK 
(FRONT VIEW)

AC204484

AC

CONNECTOR: F-23

F-23

F-23

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-126

STEP 21. Check the harness wiring from ETACS-ECU 
connector D-222 (terminal 17) to rear passenger's door 
lock actuator (RH) connector H-21 (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

AC000316 AJ

CONNECTOR: H-21

REAR DOOR <RH>

1

2

3

4

5

6

H-21 (B)

H-21 (B)

(HARNESS SIDE)

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-127

NOTE: Also check junction block connector D-209 and inter-
mediate connector D-111 and F-23 for loose, corroded, or dam-
aged terminals, or terminals pushed back in the connector. If 
junction block connector D-209 or intermediate connector 
D-111 or F-23 are damaged, repair or replace the damaged 
component(s) as described in GROUP 00E, Harness Connec-
tor Inspection 

P.00E-2

.

Q: Is the harness wiring from ETACS-ECU connector D-222 

(terminal 17) to rear passenger's door lock actuator (RH) 
connector H-21 (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.

AC203860AC

D-111

CONNECTOR: D-111

D-111

AC203850

CONNECTOR: D-209

AE

D-209

D-209

JUNCTION BLOCK 
(FRONT VIEW)

AC204484

AC

CONNECTOR: F-23

F-23

F-23

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-128

STEP 22. Check back door lock actuator connector I-05 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector. 
Q: Is back door lock actuator connector I-05 in good 

condition?
YES : Go to Step 23.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that all the doors (including the back 

door) can be locked and unlocked normally.

STEP 23. Check the back door lock actuator.

1. Remove the back door lock actuator, and check it. Refer to 

GROUP 42 

− Back door Handle and Latch 

P.42-55

.

2. Follow the table below to check the back door lock actuator 

for correct operation.

Q: Is the back door lock actuator normal?

YES : Go to Step 24.
NO :  Replace the back door lock actuator. Verify that all the 

doors (including the back door) can be locked and 
unlocked normally.

ACX02293

CONNECTOR: I-05

AM

I-05 (B)

1

2

3

4

5

6

I-05 (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.

AC103292

A

VIEW A

UN
LOCK

LOCK 

LEVER

AC