Mitsubishi Montero (2004+). Manual - part 978

TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>

TSB Revision

AUTOMATIC TRANSMISSION

23A-487

STEP 8. Check intermediate connectors B-27, E-114, 
free-wheel engage switch connector B-39 and 
transfer-ECU connector E-104 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.
Q: Are the connectors and terminals in good condition?

YES : go to Step 9.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

AC204169

CONNECTOR : B-27

AD

B-27 (B)

8

4

7

3

5

1

6

2

AC204168

CONNECTOR : B-39

AC

B-39 (GR)

2

1

AC204194

CONNECTORS : E-104, E-114

E-104

E-104

E-114

E-114

AU

51

40

3839

50

41

52

48

37

46

35

47

36

45

34

43

32

44

33

49

42

31

38

28

16

33

22

10

31

19

7

1

18

30

29

17

5

6

21

20

32

8

2

9

25

13

3

24

23

3435

1112

27

26

3637

14

4

15

TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>

TSB Revision

AUTOMATIC TRANSMISSION

23A-488

STEP 9. Check harness for short circuit to ground between 
transfer-ECU connector E-104 terminal 50 and free-wheel 
engage switch connector B-39 terminal 2.
Q: Is the harness wire in good condition?

YES : Go to Step 15.
NO :  Repair or replace the harness wire.

AC204176

CONNECTOR : E-104

BA

51

40

3839

50

41

52

48

37

46

35

47

36

45

34

43

32

44

33

49

42

31

AC204168

CONNECTOR : B-39

AC

B-39 (GR)

2

1

TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>

TSB Revision

AUTOMATIC TRANSMISSION

23A-489

STEP 10. Check intermediate connectors B-27, E-114, 
free-wheel engage switch connector B-39 and 
transfer-ECU connector E-104 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.
Q: Are the connectors and terminals in good condition?

YES : go to Step 11.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

AC204169

CONNECTOR : B-27

AD

B-27 (B)

8

4

7

3

5

1

6

2

AC204168

CONNECTOR : B-39

AC

B-39 (GR)

2

1

AC204194

CONNECTORS : E-104, E-114

E-104

E-104

E-114

E-114

AU

51

40

3839

50

41

52

48

37

46

35

47

36

45

34

43

32

44

33

49

42

31

38

28

16

33

22

10

31

19

7

1

18

30

29

17

5

6

21

20

32

8

2

9

25

13

3

24

23

3435

1112

27

26

3637

14

4

15

TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>

TSB Revision

AUTOMATIC TRANSMISSION

23A-490

STEP 11. Check harness for open circuit between 
transfer-ECU connector E-104 terminal 50 and free-wheel 
engage switch connector B-39 terminal 2.
Q: Is the harness wire in good condition?

YES : Go to Step 15.
NO :  Repair or replace the harness wire.

STEP 12. Measure the resistance at free-wheel engage 
switch.
(1) Disconnect connector B-39 and measure at the harness 

side.

(2) Measure the resistance between terminal 1 and ground.

• The resistance should measure less than 2 ohms.

Q: Is the measured resistance less than 2 ohms?

YES : Go to Step 15.
NO :  Go to Step 13.

AC204176

CONNECTOR : E-104

BA

51

40

3839

50

41

52

48

37

46

35

47

36

45

34

43

32

44

33

49

42

31

AC204168

CONNECTOR : B-39

AC

B-39 (GR)

2

1

AC204168

CONNECTOR : B-39

AC

B-39 (GR)

2

1

AC204918

B-39 HARNESS CONNECTOR : 
COMPONENT SIDE

CK

1

2