Mitsubishi Montero (2004+). Manual - part 889

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-131

STEP 10. Check harness for open circuit or short circuit to 
ground between transmission range switch connector 
C-04 terminal 1 and PCM connector D-134 terminal 66.
Q: Is the harness wire in good condition?

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

AC204395

CONNECTOR : C-04

AF

C-04 (B)

4
9

5

10

3
8

2
7

6

1

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

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-132

STEP 11. Check combination meter connector D-32 and 
intermediate connector E-113 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 12.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

STEP 12. Check harness for short circuit to ground 
between combination meter connector D-32 terminal 1 and 
intermediate connector E-114 terminal 22.
Q: Is the harness wire in good condition?

YES : Go to Step 5.
NO :  Repair or replace the harness wire.

AC204170

CONNECTOR : D-32

CF

D-32 (GR)

10

9

23

22

12

11

25

24

8

6 7

20

13

5

4

18

17

19

21

16

3

2

15

14

1

AC204176

CONNECTOR : E-113

BC

1

6

2

7 8 9 10 11 12 13 14

3 4 5

AC204170

CONNECTOR : D-32

CF

D-32 (GR)

10

9

23

22

12

11

25

24

8

6 7

20

13

5

4

18

17

19

21

16

3

2

15

14

1

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-133

STEP 13. Check PCM connector D-134 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 5.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

STEP 14. Check the transmission range switch.
Measure the resistance between the terminals for each trans-
mission range as indicated in the table below.

Q: Is the measured resistance less than 2 ohms for each 

transmission range?
YES : Go to Step 15.
NO :  Replace the transmission range switch. Refer to 

GROUP 23B, Transmission 

P.23B-14

.

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

TRANSMISSION 
RANGE

TERMINAL 
CONNECTION OF 
TESTER

SPECIFIED 
CONDITION

P

1 

− 7

Less than 2 ohms.

R

7 

− 8

N

2 

− 7

D

3 

− 7

ACX01187AD

P

R

N

D

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-134

STEP 15. Check transmission range switch connector C-04 
the 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 16.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

STEP 16. Measure the transmission range switch output 
voltage at PCM connector D-134 by backprobing.
(1) Do not disconnect connector D-134.
(2) Turn the ignition switch to the "ON" position.
(3) Move the selector lever to the "R" position.

(4) Measure the voltage between terminal 67 and ground by 

backprobing.

• The voltage should measure battery positive voltage.

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

YES : Go to Step 13.
NO :  Go to Step 17.

AC204395

CONNECTOR : C-04

AF

C-04 (B)

4
9

5

10

3
8

2
7

6

1

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 BG

D-134 HARNESS CONNECTOR : 
HARNESS SIDE

76

85

65

72

71

73

82

75

81

74

63 64

66

70

69

68

67

78

87

79

88 89

80

77

86

62

61

83 84