Mitsubishi Montero (2004+). Manual - part 949

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-371

STEP 23. Check PCM connector D-134 and intermediate 
connector E-114 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 24.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

AC204681AC

CONNECTOR: D-134

D-134 (GR)

61 62

63 64

65 66 67 68 69 70 71 72 73

82

89

81

88

80

79

78

77

87

86

85

76

75

74

84

83

AC204176

CONNECTOR : E-114

BD

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

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-372

STEP 24. Check harness for open circuit or short circuit to 
ground between PCM connector D-134 terminal 68 and 
shift switch assembly connector E-115 terminal 8.
Q: Is the harness wire in good condition?

YES : Go to Step 25.
NO :  Repair or replace the harness wire.

AC204681AC

CONNECTOR: D-134

D-134 (GR)

61 62

63 64

65 66 67 68 69 70 71 72 73

82

89

81

88

80

79

78

77

87

86

85

76

75

74

84

83

AC204176

CONNECTOR : E-115

BE

8

3

4 5

1

2

6 7

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-373

STEP 25. Using scan tool MB991958, check data list item 
67: Select Switch, item 68: Shift Switch (Up), item 69: Shift 
Switch (Down).

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) Check the following items in the data list.

a. item 67: Select Switch
b. item 68: Shift Switch (Up)

c. item 69: Shift Switch (Down)

• The switches above are displayed, depending on the 

selector lever condition as shown in the table.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the switch 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 :  Replace the PCM.

SELECTOR 
LEVER 
OPERATION

DATA LIST ITEM

67

68

69

D range

OFF

OFF

OFF

Sport mode

ON

OFF

OFF

Upshift and hold 
the selector lever

ON

ON

OFF

Downshift and 
hold the selector 
lever

ON

OFF

ON

AC307591 AC

MB991911

MB991824

MB991827

AC307591

DATA LINK

CONNECTOR

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-374

INSPECTION PROCEDURE 18: 4LLc Detection Switch System

AC205257AB

4LLc Detection Switch System Circuit

AC204395

CONNECTOR : C-05

AG

C-05 (BR)

C-05

1