Mitsubishi Montero (2002-2004). Manual - part 362

 

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Mitsubishi Montero (2002-2004). Manual - part 362

 

 

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-495

STEP 19. Check the wiring harness between horn relay 
connector A-10X (terminal 1) and ETACS-ECU connector 
D-223 (terminal 42).

NOTE: Also check intermediate connector D-28 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connectors D-28 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 horn relay connector A-

10X (terminal 1) and ETACS-ECU connector D-223 
(terminal 42) in good condition?
YES : 
Replace the ETACS-ECU. All the vehicle horn 

(including the theft-alarm horn) should sound when 
the theft-alarm system is triggered.

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. All the 
vehicle horn (including the theft-alarm horn) should 
sound when the theft-alarm system is triggered.

AC204183

CONNECTOR : A-10X

RELAY BOX SIDE

AD

2 1

5

4

3

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

AC204170

CONNECTOR : D-28

AI

2 3

27

32

28

33

16

15

4 5

19

18

29

17

34

7 8

35

22

21

9 10

30

36

31

37

25

24

23

6

20

1

14

26

11

13

12

38

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-496

STEP 20. Check the horn.
(1) When the theft-alarm system is triggered, remove the horn 

(high or low) which does not sound.

(2) Connect the battery as shown, and Verify that the horn 

sounds.

Q: Is the horn normal?

YES : Go to Step 21.
NO :  Replace the defective horn. All the vehicle horn 

(including the theft-alarm horn) should sound when 
the theft-alarm system is triggered.

STEP 21. Check which horn is defective.
Q: Which horn does not sound?

horn (high)  : Go to Step 22.
horn (low)  : Go to Step 24.

STEP 22. Check joint connector (3) A-17 and horn (high) 
connector A-27 for loose, corroded or damaged terminals, 
or terminals pushed back in the connector.
Q: Are joint connector (3) A-17 and horn (high) connector 

A-27 in good condition?
YES : 
Go to Step 23.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. All the vehicle horn (including the theft-alarm 

horn) should sound when the theft-alarm system is 
triggered.

ACX02352

AC204167

CONNECTOR : A-17

AF

A-17(GR)

A-17(GR)

14

13

4

1112

5

3

10

8 9

2

7

1

6

AC204166

CONNECTOR : A-27

HARNESS 
SIDE

A-27(B)

A-27(B)

AB

1

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-497

STEP 23. Check the wiring harness between joint 
connector (3) A-17 (terminal 2) and horn (high) connector 
A-27 (terminal 1).
Q: Is the wiring harness between joint connector (3) A-17 

(terminal 2) and horn (high) connector A-27 (terminal 1) 
in good condition?
YES : 
Go to Step 26.
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. All the 
vehicle horn (including the theft-alarm horn) should 
sound when the theft-alarm system is triggered.

STEP 24. Check joint connector (3) A-17 and horn (low) 
connector A-28 for loose, corroded or damaged terminals, 
or terminals pushed back in the connector.
Q: Are joint connector (3) A-17 and horn (low) connector A-

28 in good condition?
YES : 
Go to Step 25.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. All the vehicle horn (including the theft-alarm 

horn) should sound when the theft-alarm system is 
triggered.

AC204167

CONNECTOR : A-17

AF

A-17(GR)

A-17(GR)

14

13

4

1112

5

3

10

8 9

2

7

1

6

AC204166

CONNECTOR : A-27

HARNESS 
SIDE

A-27(B)

A-27(B)

AB

1

AC204167

CONNECTOR : A-17

AF

A-17(GR)

A-17(GR)

14

13

4

1112

5

3

10

8 9

2

7

1

6

AC204166

CONNECTOR : A-28

HARNESS 
SIDE

A-28(B)

A-28(B)

AC

1

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-498

STEP 25. Check the wiring harness between joint 
connector (3) A-17 (terminal 3) and horn (low) connector A-
28 (terminal 1).
Q: Is the wiring harness between joint connector (3) A-17 

(terminal 3) and horn (low) connector A-28 (terminal 1) 
in good condition?
YES : 
Go to Step 26.
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. All the 
vehicle horn (including the theft-alarm horn) should 
sound when the theft-alarm system is triggered.

STEP 26. Check the fit of the horn.
When the theft-alarm system is triggered, check the fit of the 
horn (high or low) which does not sound.
NOTE: The horn is grounded to the vehicle body via its mount-
ing bolt.
Q: Is the horn installed correctly?

YES : Replace the ETACS-ECU. All the vehicle horn 

(including the theft-alarm horn) should sound when 
the theft-alarm system is triggered.

NO :  Install the horn correctly. All the vehicle horn 

(including the theft-alarm horn) should sound when 
the theft-alarm system is triggered.

AC204167

CONNECTOR : A-17

AF

A-17(GR)

A-17(GR)

14

13

4

1112

5

3

10

8 9

2

7

1

6

AC204166

CONNECTOR : A-28

HARNESS 
SIDE

A-28(B)

A-28(B)

AC

1

 

 

 

 

 

 

 

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