Mitsubishi Montero (2004+). Manual - part 699

 

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Mitsubishi Montero (2004+). Manual - part 699

 

 

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-53

STEP 6. Check the ground circuit to the front-ECU. Test at 
front-ECU connector A-08X.

(1) Disconnect front-ECU connector A-08X and measure the 

resistance available at the relay box side of the connector.

(2) Measure the resistance value between terminal 31 and 

ground.

• The resistance should equal 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 8.
NO :  Go to Step 7.

STEP 7. Check the wiring harness between front-ECU 
connector A-08X (terminal 31) and the ground.

Q: Is the wiring harness between front-ECU connector 

A-08X (terminal 31) 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. The system 
should communicate with the front-ECU normally.

STEP 8. Check the ETACS-ECU connector D-224 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector. 

Q: Is ETACS-ECU connector D-224 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

. The system should communicate with the 

front-ECU normally.

AC204183

CONNECTOR : A-08X

AC

22

23

21

26 25

27

28

31 30 29

24

RELAY BOX SIDE

A-08X

21

22

23

24

25

27 26

28

29

30

31

ACX01288

CONNECTOR A-08X
(RELAY BOX SIDE)

AB

AC204183

CONNECTOR : A-08X

AC

22

23

21

26 25

27

28

31 30 29

24

RELAY BOX SIDE

A-08X

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

SIMPLIFIED WIRING SYSTEM (SWS)

54B-54

STEP 9. Check the wiring harness between front-ECU 
connector A-08X (terminal 22) and ETACS-ECU connector 
D-224 (terminal 21).

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 front-ECU connector 

A-08X (terminal 22) and ETACS-ECU connector D-224 
(terminal 21) in good condition?
YES : 
Go to Step 10.
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 system 
should communicate with the front-ECU normally.

AC204183

CONNECTOR : A-08X

AC

22

23

21

26 25

27

28

31 30 29

24

RELAY BOX SIDE

A-08X

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

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

SIMPLIFIED WIRING SYSTEM (SWS)

54B-55

STEP 10. Replace the ECU.
(1) Replace the front-ECU.
(2) The system should communicate with the front-ECU 

normally.

Q: Can the system communicate with the front-ECU?

YES : No action is necessary and testing is complete.
NO :  Replace the ETACS-ECU. The system should 

communicate with the front-ECU normally.

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-56

INSPECTION PROCEDURE A-5: Communication with the sunroof motor assembly (sunroof-ECU) is 
not possible.

Sunroof Motor Assembly (Sunroof-ECU) and SWS Communication Circuit

 

 

 

 

 

 

 

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