Mitsubishi Montero (2002-2004). Manual — part 988

SYMPTOM PROCEDURES <AUTOMATIC TRANSMISSION>

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SYMPTOM PROCEDURES

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STEP 21. Check shift switch assembly connector E-115 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are the connector and terminals in good condition?

YES : Go to Step 22.
NO : Repair or replace the damaged components. Refer to

GROUP 00E, Harness Connector Inspection

P.00E-

2

.

STEP 22. Measure the switch output voltage at PCM
connector D-134.
(1) Disconnect connector D-134 and measure at the harness

side.

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal 68 and ground.

• The voltage should measure battery positive voltage

when the selector lever is downshift and hold.

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

YES : Go to Step 14.
NO : Go to Step 23.

AC204176

CONNECTOR : E-115

BE

8

3

4 5

1

2

6 7

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

AC204918 BH

D-134 HARNESS CONNECTOR :
HARNESS SIDE

80

87

73

66

67

65

74

81

75

82

62 61

72

68

69

70

71

78

85

77

84 83

76

79

86

63

64

89 88

SYMPTOM PROCEDURES <AUTOMATIC TRANSMISSION>

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SYMPTOM PROCEDURES

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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

SYMPTOM PROCEDURES <AUTOMATIC TRANSMISSION>

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SYMPTOM PROCEDURES

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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

SYMPTOM PROCEDURES <AUTOMATIC TRANSMISSION>

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SYMPTOM PROCEDURES

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STEP 25. Using scan tool MB991502, check data list item
67: Select Switch, item 68: Shift Switch (Up), item 69: Shift
Switch (Down).

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) 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

ACX01539AD

MB991502

16-PIN