Mitsubishi Montero Sport (2004+). Manual - part 450

DOOR

TSB Revision

BODY

42-55

NOTE: After inspecting intermediate connector C-39 inspect 
the wire. If intermediate connector C-39 is damaged, repair or 
replace it. Refer to GROUP 00E 

P.00E-2

, Harness Connector 

Inspection. Then go to Step 15.
Q: Are there any damaged harness wires between 

ETACS-ECU connector D-10 (terminal No.26) <Vehicles 
without keyless entry system>, D-26 (terminal No.28) 
<Vehicles with keyless entry system> or D-27 (terminal 
No.52) <Vehicles with keyless entry system> and door 
lock key cylinder switch (LH) connector F-06 (terminals 
No.1 and No.3 <Vehicles with keyless entry system>)?
YES : Repair or replace the harness wire, then go to Step 

15.

NO :  Go to Step 14.

STEP 14. Check the harness wire between door lock key 
cylinder switch connector F-06 and ground.

NOTE: After inspecting intermediate connector C-39 inspect 
the wire. If intermediate connector C-39 is damaged, repair or 
replace it. Refer to GROUP 00E 

P.00E-2

, Harness Connector 

Inspection. Then go to Step 15.
Q: Is the harness wire between door lock key cylinder 

switch connector F-06 and ground damaged?
YES : Repair or replace the harness wire, then go to Step 

15.

NO :  Replace the ETACS-ECU then go to Step 15.

STEP 15. Retest the system.
Q: Does the door lock function operate normally?

YES : The procedure is complete.
NO :  Return to Step 1.

AC309309AJ

CONNECTOR: C-39

C-39

AC309370

2 1

3

CONNECTOR: F-06

F-06

COMPONENT SIDE

FRONT DOOR <LH>

AB

AC309309AJ

CONNECTOR: C-39

C-39

DOOR

TSB Revision

BODY

42-56

INSPECTION PROCEDURE 5: Some Doors do not Lock or Unlock.

AC004384

<Vehicles without keyless entry system>

AC

Door Lock Actuator Circuit

DOOR

TSB Revision

BODY

42-57

AC004328

<Vehicles with keyless entry system>

AC

AC309309AL

C-01

CONNECTORS: C-01, C-39

C-39

AC309353AB

C-12

CONNECTOR: C-12

DOOR

TSB Revision

BODY

42-58

.

COMMENT ON TROUBLE SYMPTOM
If a door or the liftgate can not be locked or unlocked 
by the central door locking system, the door lock 
actuator may be defective.

.

CIRCUIT OPERATION
When the door lock actuator receives the lock or 
unlock signal from the ETACS-ECU, the actuator will 
lock or unlock the door.

.

TECHNICAL DESCRIPTION (COMMENT)
The cause may be a malfunction of the door lock 
actuator or of a wiring harness or connector.

.

TROUBLESHOOTING HINTS

• Malfunction of the door lock actuator

• Damaged wiring harness or connector

AC004311

D-27 (B)

D-10

JUNCTION BLOCK (REAR)

CONNECTORS: D-10, D-27

BA

AC004329AB

CONNECTORS: E-01, E-18, E-31, E-42

E-01

E-42

E-31

E-18

AC004332AC

CONNECTORS: F-21, F-24

<PASSENGER'S SIDE>

F-24 (B)

F-21

AC004331

CONNECTORS: F-09, F-12
<DRIVER'S SIDE>

F-12 (B)

F-09

AC

AC004330

CONNECTOR: G-04

AC

<LIFTGATE>

G-04