Mitsubishi Montero (2004+). Manual — part 974

TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>

TSB Revision

AUTOMATIC TRANSMISSION

23A-471

STEP 1. Using scan tool MB991958, check data list item 30:
Free-wheel Engage Solenoid Valve.

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Transmission range should be "N" range.
(4) Set scan tool MB991958 to the data reading mode.

• Item 30: Free-wheel Engage Solenoid Valve.

• When the transfer shift lever position is other than

2H, the display should be "ON."

• When the transfer shift lever position is 2H, the dis-

play should be "OFF."

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the solenoid valve operating properly?

YES : It can be assumed that this malfunction is intermittent.

Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points

− How to

Cope with Intermittent Malfunction

P.00-6

.

NO : Go to Step 2.

STEP 2. Check the free-wheel engage solenoid valve.
Refer to GROUP 26, On-vehicle Service

− Solenoid Valve

Operation Check

P.26-16

.

Q: Is the solenoid valve operating properly?

YES : Go to Step 3.
NO : Replace the free-wheel engage solenoid valve. Refer

to GROUP 26, Solenoid Valve and Vacuum Hose

P.26-59

.

AC307591 AC

MB991911

MB991824

MB991827

AC307591

DATA LINK

CONNECTOR

TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>

TSB Revision

AUTOMATIC TRANSMISSION

23A-472

STEP 3. Measure the power supply voltage at free-wheel
engage solenoid valve connectors A-38 and A-39.
(1) Disconnect connectors A-38 and A-39.
(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal 1 and ground.

• The voltage should measure battery positive voltage.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage?

YES : Go to Step 6.
NO : Go to Step 4.

AC204184

CONNECTORS : A-38, A-39

A-38 (B)

A-39 (BR)

AD

A-38

2

1

A-39

2

1

AC204918

1
2

A-38, A-39 HARNESS CONNECTOR :
COMPONENT SIDE

TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>

TSB Revision

AUTOMATIC TRANSMISSION

23A-473

STEP 4. Check joint connector A-15, free-wheel engage
solenoid valve connectors A-38, A-39, intermediate
connector D-28, junction block connector D-210 and D-208
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.

AC204167

CONNECTOR : A-15

AU

1213

4 5

14

10

3

8 9

2

7

1

6

11

AC204184

CONNECTORS : A-38, A-39

A-38 (B)

A-39 (BR)

AD

A-38

2

1

A-39

2

1

AC204170

CONNECTOR : D-28

CH

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

TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>

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AUTOMATIC TRANSMISSION

23A-474

Q: Are the connectors and terminals in good condition?

YES : Go to Step 5.
NO : Repair or replace the damaged components. Refer to

GROUP 00E, Harness Connector Inspection

P.00E-2

.

AC204191

CONNECTORS : D-208, D-210

D-208

D-208

D-210

D-210

AP

5 6

2

4

3

1

5

4

12 13

3

2

9

7 8

10

6

1

11