Mitsubishi Montero Sport (2004+). Manual - part 446

DOOR

TSB Revision

BODY

42-39

STEP 12. Check the power window sub switch 
(incorporated with door lock switch) continuity.
(1) Remove the power window sub switch (Refer to 

P.42-134

).

(2) Follow the table to check the resistance when the door lock 

switch is operated (lock/unlock).

Q: Is the door lock switch damaged?

YES : Replace the power window sub switch, then go to 

Step 21.

NO :  Go to Step 13.

STEP 13. Check ETACS-ECU connector D-10 <Vehicles 
without keyless entry system> or D-27 <Vehicles with 
keyless entry system> for loose, corroded or damaged 
terminals, or terminals pushed back in the connector.
Q: Are ETACS-ECU connector D-10 <Vehicles without 

keyless entry system> or D-27 <Vehicles with keyless 
entry system> in good condition?
YES : Go to step 14.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E 

P.00E-2

, Harness Connector inspection. 

Then go to Step 21.

SWITCH 
POSITION

TESTER 
CONNECTION

SPECIFIED 
CONDITION

At the LOCK 
position

1 

− 2

Less than 2 ohms

OFF

1 

− 2, 2 − 3

Open circuit 

At the UNLOCK 
position

2 

− 3

Less than 2 ohms

AC000578

18I0343

1

2 3

4 5 6 7 8

AB

DOOR LOCK 

SWITCH

FRONT POWER

WINDOW SUB SWITCH

AC202002

6 5 4

1

2

7

3
8

41

43

51

42

50

44

52

46 45

53

49

47

30

48

56

55

D-27 (B)

D-10

JUNCTION 
BLOCK (REAR)

CONNECTORS: D-10, D-27

AB

D-27 COMPONENT  SIDE

D-10 COMPONENT SIDE

21

22

23

24

25

26

27

28

DOOR

TSB Revision

BODY

42-40

STEP 14. Check the harness wire between ETACS-ECU 
connector D-10 (terminals No.27 and No.28) <Vehicles 
without keyless entry system> or D-27(terminals No.49 and 
No.50) <Vehicles with keyless entry system> and power 
window sub switch F-17(terminals No.1 and No.3). 

NOTE: After inspecting intermediate connector C-12 inspect 
the wires. If intermediate connector C-12 is damaged, repair or 
replace it. Refer to GROUP 00E 

P.00E-2

, Harness Connector 

Inspection. Then go to Step 21.
Q: Are there any damaged harness wires?

YES : Repair or replace the harness wire, then go to Step 

21.

NO :  Go to Step 21.

AC202002

6 5 4

1

2

7

3
8

41

43

51

42

50

44

52

46 45

53

49

47

30

48

56

55

D-27 (B)

D-10

JUNCTION 
BLOCK (REAR)

CONNECTORS: D-10, D-27

AB

D-27 COMPONENT  SIDE

D-10 COMPONENT SIDE

21

22

23

24

25

26

27

28

AC202004

1
4

6 5

2
7

3
8

CONNECTOR: F-17

FRONT DOOR

<RH>

COMPONENT SIDE

AB

F-17

AC309353AC

C-12

CONNECTOR: C-12

DOOR

TSB Revision

BODY

42-41

STEP 15. Check the harness wire between power window 
sub switch connector F-17 (terminal No.2) and ground.

NOTE: After inspecting intermediate connector C-12 inspect 
the wire. If intermediate connector C-12 is damaged, repair or 
replace it. Refer to GROUP 00E 

P.00E-2

, Harness Connector 

Inspection. Then go to Step 21.
Q: Is the harness wire damaged?

YES : Repair or replace the harness wire, then go to Step 

21.

NO :  Replace the ETACS-ECU then go to Step 21.

STEP 16. Check door lock key cylinder switch (RH) 
connector F-18 for loose, corroded or damaged terminals, 
or terminals pushed back in the connector.
Q: Is door lock key cylinder switch (RH) connector F-18 in 

good condition?
YES : Go to step 17.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E 

P.00E-2

, Harness Connector inspection. 

Then go to Step 21.

AC202004

1
4

6 5

2
7

3
8

CONNECTOR: F-17

FRONT DOOR

<RH>

COMPONENT SIDE

AB

F-17

AC309353AC

C-12

CONNECTOR: C-12

AC202006

2 1

3

CONNECTOR: F-18

FRONT DOOR

(RH)

F-18

AB

COMPONENT SIDE

DOOR

TSB Revision

BODY

42-42

STEP 17. Check the door lock key cylinder switch (RH).
(1) Remove the door lock key cylinder switch (RH) (Refer to 

P.42-140

).

(2) Follow the table to check the resistance when the door lock 

key cylinder switch is operated (lock/unlock).

Q: Is the door lock key cylinder switch damaged?

YES : Replace the door lock key cylinder switch (RH), then 

go to Step 21.

NO :  Go to Step 18.

STEP 18. Check ETACS-ECU connector D-10 <Vehicles 
without keyless entry system> or D-26 <Vehicles with 
keyless entry system> for loose, corroded or damaged 
terminals, or terminals pushed back in the connector.
Q: Are ETACS-ECU connector D-10 <Vehicles without 

keyless entry system> or D-26 <Vehicles with keyless 
entry system> in good condition?
YES : Go to step 19.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E 

P.00E-2

, Harness Connector inspection. 

Then go to Step 21.

SWITCH 
POSITION

TESTER 
CONNECTION

SPECIFIED 
CONDITION

At the LOCK 
position

2 

− 3

Less than 2 ohms

OFF

1 

− 2

2 

− 3

Open circuit 

At the UNLOCK 
position

1 

− 2

Less than 2 ohms

AC003793AB

AC202005

2

5 4

1

6

7

3
8

1

2

8 7

4

10

5

11

12

6

9

3

CONNECTORS: D-10, D-26

AB

D-10 COMPONENT SIDE

D-26 COMPONENT SIDE

D-10

D-26 (B)

21

22

23

24

25

26

27

28

21

22

23

24

25

26

27

28

29

30

31

32