Mitsubishi Montero (2004+). Manual - part 834

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-593

STEP 7. Check the wiring harness between driver's door 
lock actuator switch connector H-10 (terminals 2 and 3) 
and ETACS-ECU connector D-223 (terminals 56 and 55).

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 driver's door lock 

actuator switch connector H-10 (terminals 2 and 3) and 
ETACS-ECU connector D-223 (terminals 56 and 55) in 
good condition?
YES : Replace the ETACS-ECU. If the functions, which are 

described in "CIRCUIT OPERATION", work normally, 
the input signal from the driver's door lock actuator 
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 
functions, which are described in "CIRCUIT 
OPERATION", work normally, the input signal from 
the driver's door lock actuator 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-10

AD

HARNESS SIDE

H-10(B)

H-10(B)

<DRIVER'S SIDE>

1

3 2

4

6 5

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

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-594

STEP 8. Check front passenger's door lock actuator switch 
connector H-24 for loose, corroded or damaged terminals, 
or terminals pushed back in the connector.
Q: Is front passenger's door lock actuator switch 

connector H-24 in good condition?
YES : Go to Step 9.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. If the functions, which are described in 

"CIRCUIT OPERATION", work normally, the input 
signal from the front passenger's door lock actuator 
switch should be normal.

STEP 9. Check the front passenger's door lock actuator 
switch.
Disconnect front passenger's door lock actuator switch connec-
tor H-24. Then check continuity between the switch terminals.

Q: Is the front passenger's door lock actuator switch in 

good condition?
YES : Go to Step 10.
NO :  Replace the front passenger's seat door lock actuator 

switch. If the functions, which are described in 
"CIRCUIT OPERATION", work normally, the input 
signal from the front passenger's door lock actuator 
switch should be normal.

AC204181

CONNECTOR : H-24

AE

HARNESS SIDE

<PASSENGER'S SIDE>

H-24(B)

H-24(B)

1

3 2

4

6 5

LEVER 
POSITION

TESTER 
CONNECTION

SPECIFIED 
CONDITION

UNLOCK

2 

− 3

Less than 2 ohms

ACX02351

LEVER

LOCK

UNLOCK

VIEW A

A

AC

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-595

STEP 10. Check the ground circuit to the front passenger’s 
door lock actuator switch. Test at front passenger’s door 
lock actuator switch connector H-24.
(1) Disconnect front passenger’s door lock actuator switch 

connector H-24 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 12.
NO :  Go to Step 11.

STEP 11. Check the wiring harness between front 
passenger's door lock actuator switch connector H-24 
(terminal 3) and ground.

AC204181

CONNECTOR : H-24

AE

HARNESS SIDE

<PASSENGER'S SIDE>

H-24(B)

H-24(B)

1

3 2

4

6 5

5

4

3

2

1

6

ACX01604 AB

CONNECTOR H-24
(HARNESS SIDE)

AC204181

CONNECTOR : H-24

AE

HARNESS SIDE

<PASSENGER'S SIDE>

H-24(B)

H-24(B)

1

3 2

4

6 5

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-596

NOTE: Also check intermediate connector D-15 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector D-15 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 front passenger's door 

lock actuator switch connector H-24 (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 
functions, which are described in "CIRCUIT 
OPERATION", work normally, the input signal from 
the front passenger's door lock actuator switch should 
be normal.

STEP 12. 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 13.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. If the functions, which are described in 

"CIRCUIT OPERATION", work normally, the input 
signal from the front passenger's door lock actuator 
switch should be normal.

AC204171

CONNECTOR : D-15

AB

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