Mitsubishi Montero (2004+). Manual - part 832

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-585

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 driver's door lock key 

cylinder switch connector H-03 (terminal 2) 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 
systems, which are described in "CIRCUIT 
OPERATION", work normally, the input signal from 
the driver's door lock key cylinder switch should be 
normal.

STEP 23. Check driver's door lock key cylinder switch 
connector H-03 and ETACS-ECU connector D-223 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Are driver's door lock key cylinder switch connector 

H-03 and ETACS-ECU connector D-223 in good 
condition?
YES : Go to Step 24.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. If the systems, which are described in 

"CIRCUIT OPERATION", work normally, the input 
signal from the driver's door lock key cylinder 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

AC204180

CONNECTOR : H-03

AB

HARNESS SIDE

<DRIVER'S SIDE>

H-03(B)

H-03(B)

1

2

3

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-586

STEP 24. Check the wiring harness between driver's door 
lock key cylinder switch connector H-03 (terminals 3) and 
ETACS-ECU connector D-223 (terminals 50).

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 driver's door lock key 

cylinder switch connector H-03 (terminals 3) and 
ETACS-ECU connector D-223 (terminals 50) in good 
condition?
YES : Replace the ETACS-ECU. If the systems, which are 

described in "CIRCUIT OPERATION", work normally, 
the input signal from the driver's door lock key 
cylinder 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 
systems, which are described in "CIRCUIT 
OPERATION", work normally, the input signal from 
the driver's door lock key cylinder 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-03

AB

HARNESS SIDE

<DRIVER'S SIDE>

H-03(B)

H-03(B)

1

2

3

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-587

INSPECTION PROCEDURE P-6 : ETACS-ECU does not receive any signal from the driver's, front 
passenger's, rear or back door lock actuator switch.

ETACS-ECU

DOOR LOCK 
ACTUATOR 

(FRONT: LH)

(FRONT: RH)

BACK
DOOR
LOCK 
ACTUATOR 

Door Lock Actuator Input Circuit

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-588

AC204171

CONNECTORS : D-15, D-111

AJ

D-111

D-15

AC204170

CONNECTORS : D-25, D-125

CB

D-25

D-125

AC204174

CONNECTOR : D-223

D-223(B)

AF

AC204178

CONNECTOR : F-12

AK

AC204177

CONNECTOR : F-23

AN

AC204179

CONNECTOR : G-11

AK

AC204180

CONNECTORS : H-10, H-13

H-10(B)

H-13(B)

AH

AC204181

CONNECTORS : H-21, H-24

H-21(B)

H-24(B)

AH