Mitsubishi Montero (2004+). Manual - part 837

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-605

STEP 1. Verify which door switch is defective.
Q: Which door switch signal is not entered?

Power window main switch (Driver's door) : Go to Step 

2.

Power window sub switch (Front passenger's door) : 

Go to Step 8.

Power window main switch (driver's door) and power 
window sub switch (front passenger's door) : Go to Step 

14.

Power window main switch (driver's door) and power 
window sub switch (front passenger's door) (Lock 
signal only) : Go to Step 16.
Power window main switch (driver's door) and power 
window sub switch (front passenger's door) (Unlock 
signal only) : Go to Step 18.

STEP 2. Check power window main switch connector H-05 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is power window main switch connector H-05 in good 

condition?
YES : Go to Step 3.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. If the central door locking system works 

normally, input signal from the door lock switch should 
be normal.

STEP 3. Check the door lock switch (power window main 
switch).
Remove the power window main switch. Then check continuity 
between the switch terminals.

Q: Is the door lock switch (power window main switch) in 

good condition?
YES : Go to Step 4.
NO :  Replace the power window main switch. If the central 

door locking system works normally, input signal from 
the door lock switch should be normal.

AC204180

CONNECTOR : H-05

AC

HARNESS SIDE

<DRIVER'S SIDE>

1
8

3

4

6

7

5

10

11

13

14

12

2
9

H-05

SWITCH 
POSITION

TESTER 
CONNECTION

SPECIFIED 
CONDITION

LOCK

3 

− 12

Less than 2 ohms

OFF

3 

− 10, 3 − 12

Open circuit

UNLOCK

3 

− 10

Less than 2 ohms

7

6

5

4

3

2

1

14

13

12

11

10

9

8

ACX02412

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-606

STEP 4. Check the ground circuit to the power window 
main switch. Test at power window main switch connector 
H-05.
(1) Disconnect power window main switch connector H-05 and 

measure the resistance available at the wiring harness side 
of the connector.

(2) Measure the resistance value between terminal 3 and 

ground.

• The resistance should equal 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 6.
NO :  Go to Step 5.

STEP 5. Check the wiring harness between power window 
main switch H-05 (terminal 3) and ground.

AC204180

CONNECTOR : H-05

AC

HARNESS SIDE

<DRIVER'S SIDE>

1
8

3

4

6

7

5

10

11

13

14

12

2
9

H-05

1

2

3

4

5

6

7

8

9

10

11

12

13

14

ACX01606 AB

CONNECTOR H-05
(HARNESS SIDE)

AC204180

CONNECTOR : H-05

AC

HARNESS SIDE

<DRIVER'S SIDE>

1
8

3

4

6

7

5

10

11

13

14

12

2
9

H-05

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-607

NOTE: Also check intermediate connector D-25 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector D-25 is damaged, repair or 
replace the damaged component(s) as described in GROUP 
00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between power window main 

switch connector H-05 (terminal 3) and ground in good 
condition?
YES : No action is necessary and testing is complete.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. If the central 
door locking system works normally, input signal from 
the door lock switch should be normal.

STEP 6. Check ETACS-ECU connector D-223 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is ETACS-ECU connector D-223 in good condition?

YES : Go to Step 7.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. If the central door locking system works 

normally, input signal from the door lock switch should 
be normal.

AC204170

CONNECTOR : D-25

AE

10

9

31

30

20 21

7

6

28

17 18

8

19

29

4

3

25 26

14 15

1

23

12

2

13

24

5

16

27

11

22

32

AC204174

CONNECTOR : D-223

AC

D-223(B)

D-223(B)

HARNESS SIDE

42

43

50

51

45

46

53

54

52

44

48

5655

47

49

41

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-608

STEP 7. Check the wiring harness between power window 
main switch connector H-05 (terminals 10 and 12) and 
ETACS-ECU connector D-223 (terminals 54 and 53).

NOTE: Also check intermediate connector D-25 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connectors D-25 is damaged, repair 
or replace the damaged component(s) as described in GROUP 
00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between power window main 

switch connector H-05 (terminals 10 and 12) and 
ETACS-ECU connector D-223 (terminals 54 and 53) in 
good condition?
YES : Replace the ETACS-ECU. If the central door locking 

system works normally, input signal from the door lock 
switch should be normal.

NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. If the central 
door locking system works normally, input signal from 
the door lock switch should be normal.

AC204174

CONNECTOR : D-223

AC

D-223(B)

D-223(B)

HARNESS SIDE

42

43

50

51

45

46

53

54

52

44

48

5655

47

49

41

AC204180

CONNECTOR : H-05

AC

HARNESS SIDE

<DRIVER'S SIDE>

1
8

3

4

6

7

5

10

11

13

14

12

2
9

H-05

AC204170

CONNECTOR : D-25

AE

10

9

31

30

20 21

7

6

28

17 18

8

19

29

4

3

25 26

14 15

1

23

12

2

13

24

5

16

27

11

22

32