Mitsubishi Montero (2004+). Manual - part 974

TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>

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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>

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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>

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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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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