Mitsubishi Montero (2002-2004). Manual - part 960

DIAGNOSTIC TROUBLE CODE PROCEDURES <TRANSFER>

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DIAGNOSTIC TROUBLE CODE PROCEDURES

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STEP 9. Check harnesses for open circuit between each 
detection switch connectors C-05, C-06, C-10, C-11, C-12 
terminal 1 and transfer-ECU connector E-104 terminals 43, 
44, 45, 46, 47.
Q: Are the harnesses wire in good condition?

YES : Go to Step 11.
NO :  Repair or replace the harness wire.

AC204510

CONNECTORS : C-05, C-06, C-10, C-11, C-12

C-05 (BR)

C-05

C-06 (B)

C-06

C-10 (B)

C-10   

C-11 (W)

C-11

C-12 (BR)

C-12

AC

1

1

1

1

1

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

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STEP 10. Measure the resistance at each detection switch 
connectors C-05, C-06, C-10, C-11, C-12.
(1) Connect scan tool MB991502 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 MB991502 to actuator testing mode for item 

02 or 03, Shift Actuator.

(5) Disconnect connectors C-05, C-06, C-10, C-11, C-12 and 

measure at the switch side.

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

• When the transfer position is 2H, connector C-06 termi-

nal 1 resistance should measure less than 2 ohms.
When the transfer position is other than 2H, connector 
C-06 terminal 1 resistance should measure open circuit.

• When the transfer position is 2H or 4H, connector C-10 

terminal 1 resistance should measure less than 2 ohms.
When the transfer position is other than 2H or 4H, con-
nector C-10 terminal 1 resistance should measure open 
circuit.

• When the transfer position is 4H or 4HLc, connector C-

11 terminal 1 resistance should measure less than 2 
ohms.
When the transfer position is other than 4H or 4HLc, 
connector C-11 terminal 1 resistance should measure 
open circuit.

• When the transfer position is 4HLc or 4LLc, connector 

C-12 terminal 1 resistance should measure less than 2 

ACX01539AD

MB991502

16-PIN

AC204510

CONNECTORS : C-05, C-06, C-10, C-11, C-12

C-05 (BR)

C-05

C-06 (B)

C-06

C-10 (B)

C-10   

C-11 (W)

C-11

C-12 (BR)

C-12

AC

1

1

1

1

1

AC204918

C-05, C-06, C-10, C-11, C-12 
HARNESS CONNECTOR :
COMPONENT SIDE

DB

1

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ohms.
When the transfer position is other than 4HLc or 4LLc, 
connector C-12 terminal 1 resistance should measure 
open circuit.

• When the transfer position is 4LLc, connector C-05 ter-

minal 1 resistance should measure less than 2 ohms.
When the transfer position is other than 4LLc, connector 
C-05 terminal 1 resistance should measure open circuit.

(7) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Are the resistance normal?

YES : Go to Step 11.
NO :  Replace the each detection switch. Refer to GROUP 

23B, Transfer 

P.23B-103

.

STEP 11. Using scan tool MB991502, check data list item 
07: Transfer Mode Detected.

CAUTION

To prevent damage to scan tool MB991502, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 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 MB991502 to data reading mode for item 07, 

Transfer Mode Detected.

• Display should be the same as the actual transfer shift 

lever position.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Are all position operating properly?

YES : If 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 :  Replace the transfer-ECU.

ACX01539AD

MB991502

16-PIN

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DTC 34: Free-wheel Engage Solenoid Valve System

ACX02037AB

Free-wheel Engage Solenoid Valve System Circuit