Mitsubishi Montero (2002-2004). Manual - part 267

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-115

STEP 17. 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

SWS SYMPTOM PROCEDURES

54Bb-116

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 com-
ponent(s) as described in GROUP 00E, Harness Connector 
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.

AC203850

CONNECTOR: D-209

AE

D-209

D-209

JUNCTION BLOCK 
(FRONT VIEW)

AC203860AC

D-111

CONNECTOR: D-111

D-111

AC204484

AC

CONNECTOR: F-23

F-23

F-23

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-117

STEP 18. 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.42-53

.

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 19.
NO :  Replace the back door lock actuator. Verify that all the 

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

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

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-118

STEP 19. Check ETACS-ECU connector D-222 and back 
door lock actuator connector I-05 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector. 
Q: Are ETACS-ECU connector D-222 and back door lock 

actuator connector I-05 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

. Verify that all the doors (including the back 

door) can be locked and unlocked normally.

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

ACX02293

CONNECTOR: I-05

AL

I-05 (B)

1 2 3

4 5 6

I-05 (B)