Mitsubishi Montero (2002-2004). Manual - part 358

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-479

 STEP 4. Check the fusible link (1) line of power supply 
circuit to the theft-alarm indicator light circuit. Test at theft-
alarm indicator light connector D-105.
(1) Disconnect theft-alarm indicator light connector D-105 and 

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

(2) Measure the voltage between terminal 2 and ground.

• The voltage should be approximately 12 volts (battery 

positive voltage).

Q:  Is the measured voltage approximately 12 volts (battery 

positive voltage)?
YES : Go to Step 7.
NO :  Go to Step 5.

 STEP 5. Check theft-alarm indicator light connector D-105 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q:  Is theft-alarm indicator light connector D-105 in good 

condition?
YES : Go to Step 6.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. The theft-alarm indicator light should 

illuminate, and the theft-alarm system should be set 
normally.

AC204170

CONNECTOR : D-105

AL

HARNESS 
SIDE

D-105(B)

D-105(B)

1

2

AC100067

1

2

AB

CONNECTOR D-105
(HARNESS SIDE)

AC204170

CONNECTOR : D-105

AL

HARNESS 
SIDE

D-105(B)

D-105(B)

1

2

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-480

 STEP 6. Check the wiring harness between theft-alarm 
indicator light connector D-105 (terminal 1) and the fusible 
link (1). 

NOTE: Also check intermediate connector D-28 and joint con-
nector D-02 for loose, corroded, or damaged terminals, or ter-
minals pushed back in the connector. If intermediate connector 
D-28 or joint connector D-02 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 theft-alarm indicator 

light connector D-105 (terminal 1) and the fusible link (1) 
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. The theft-
alarm indicator light should illuminate, and the theft-
alarm system should be set normally.

ACX02274

FUSIBLE LINK (1)

AE

BATTERY

AC204170

CONNECTOR : D-105

AL

HARNESS 
SIDE

D-105(B)

D-105(B)

1

2

AC204188

CONNECTORS: D-02, D-28

D-02

D-02

D-28

AB

D-28

9 10

8

6 7

31 32

30

29

18 19 20 21

5

4

2

1

3

27

26

24

23

25

12 13 14 15 16 17

28

11
22
33

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-481

 STEP 7. Check theft-alarm indicator light connector D-105 
and ETACS-ECU connector D-224 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.
Q:  Are theft-alarm indicator light connector D-105 and 

ETACS-ECU connector D-224 in good condition?
YES : Go to Step 8.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. The theft-alarm indicator light should 

illuminate, and the theft-alarm system should be set 
normally.

 STEP 8. Check the wiring harness between theft-alarm 
indicator light connector D-105 (terminal 1) and ETACS-
ECU connector D-224 (terminal 40). 
Q:  Is the wiring harness between theft-alarm indicator 

light connector D-105 (terminal 1) and ETACS-ECU 
connector D-224 (terminal 40) 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. The theft-
alarm indicator light should illuminate, and the theft-
alarm system should be set normally.

AC204170

CONNECTOR : D-105

AL

HARNESS 
SIDE

D-105(B)

D-105(B)

1

2

AC204174

CONNECTOR : D-224

AD

D-224(B)

D-224(B)

HARNESS SIDE

21

23

24

22

32

3433

31

26

27

28

3029

38

39

40

36

37

25

35

AC204170

CONNECTOR : D-105

AL

HARNESS 
SIDE

D-105(B)

D-105(B)

1

2

AC204174

CONNECTOR : D-224

AD

D-224(B)

D-224(B)

HARNESS SIDE

21

23

24

22

32

3433

31

26

27

28

3029

38

39

40

36

37

25

35

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-482

 STEP 9. Check the input signal by using "DATA LIST" 
menu of the SWS monitor.
Satisfy the following conditions to check the driver's and front 
passenger's door switches.

• Driver's door: Open (driver's door switch is on)

However, the door should be closed when checking the 
front passenger's door switch.

• Front passenger's door: Open (front passenger's door 

switch is on)
However, the door should be closed when checking the 
driver's door switch.

(1) Connect scan tool MB991502 to the data link connector 

(16-pin).

(2) Connect SWS monitor kit MB991862 to the data link 

connector (13-pin).

(3) Operate scan tool MB991502 according to the procedure 

below to display "ETACS ECU."

1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "SWS MONITOR."
4. Select "DATA LIST."
5. Select "ETACS ECU."

(4) The scan tool should show the following values when each 

switch is operated.
NOTE: The scan tool display changes when the driver's or 
the front passenger's door is opened. If any of the doors is 
open, the system can not be checked correctly.

Q: The scan tool shows the respective normal condition 

for item "FRONT DOOR SW."
YES : Go to Step 10.
NO :  Refer to Inspection Procedure O-5 "ETACS-ECU 

does not receive any signal from the driver's or front 
passenger's door switch 

P.54Bc-23

."

ITEM No. ITEM NAME

NORMAL CONDITION

ITEM 32

FRONT DOOR SW  ON

AC204222AB

16-pin

13-pin

MB991502

MB991862