Mitsubishi Montero (2002-2004). Manual - part 926

DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

23Ac-187

STEP 8. Measure the supply voltage at A/T control 
solenoid valve assembly connector C-03 by backprobing.
(1)  Do not disconnect solenoid valve assembly harness 

connector C-03.

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

(3) Measure the voltage between harness connector C-03 

terminal 9 and ground by backprobing.

• The voltage should equal 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 11.
NO :  Go to Step 9.

AC204395

CONNECTOR : C-03

AE

C-03 (B)

6

10

4

9

5

3

8

2

7

1

AC204918

6

9

5

10

8

3

7

2

1

4

AC204918 AM

C-03 HARNESS CONNECTOR : 
HARNESS SIDE

DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

23Ac-188

STEP 9. Check A/T control solenoid valve assembly 
connector C-03, A/T control relay connector D-13 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 10.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-

2

.

AC204395

CONNECTOR : C-03

AE

C-03 (B)

6

10

4

9

5

3

8

2

7

1

AC204750

CONNECTOR : D-13

AB

PCM

1
3 4

2

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

DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

23Ac-189

STEP 10. Check the harness for an open circuit or short 
circuit to ground between A/T control solenoid valve 
assembly connector C-03 terminal 9 and A/T control relay 
connector D-13 terminal 3.
Q: Is the harness wire in good condition?

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

AC204395

CONNECTOR : C-03

AE

C-03 (B)

6

10

4

9

5

3

8

2

7

1

AC204750

CONNECTOR : D-13

AB

PCM

1
3 4

2

DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

23Ac-190

STEP 11. Check A/T control solenoid valve assembly 
connector C-03, PCM connector D-136 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 12.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-

2

.

AC204395

CONNECTOR : C-03

AE

C-03 (B)

6

10

4

9

5

3

8

2

7

1

AC204681AD

CONNECTOR: D-136

D-136 (GR)

121 122

123

124

125 126 127 128 129 130

131 132

133

134 135

136 137 138

139 140

141

142 143

144

145

146

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