Mitsubishi Montero (2002-2004). Manual — part 925
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-183
STEP 3. Using scan tool MB991502, read the A/T
diagnostic trouble code.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Check for A/T diagnostic trouble code.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Are DTC 32 and DTC 33 set? (Multiple DTCs may be set.)
YES : Go to Step 8.
NO : Go to Step 4.
STEP 4. Measure the overdrive solenoid valve resistance
at A/T control solenoid valve assembly connector C-03.
(1) Disconnect connector C-03 and measure at the solenoid
valve side.
(2) Measure the resistance between solenoid valve assembly
connector C-03 terminals 5 and 9.
Resistance value: 2.7
− 3.4 ohms [at 20°C (68°F)]
Q: Is the measured resistance 2.7
− 3.4 ohms [at 20°C
(68
°F)]?
YES : Go to Step 6.
NO : Go to Step 5.
ACX01539AD
MB991502
16-PIN
AC204395
CONNECTOR : C-03
AE
C-03 (B)
6
10
4
9
5
3
8
2
7
1
AC204918
C-03 HARNESS CONNECTOR :
SOLENOID VALVE SIDE
CV
6
10
4
9
5
3
8
2
7
1
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-184
STEP 5. Measure the solenoid valve resistance at the
overdrive solenoid valve connector C-03-1 inside the
transmission.
(1) Disconnect solenoid valve connector C-03-1and measure
at the solenoid valve side.
(2) Measure the resistance between overdrive solenoid valve
terminals 1 and 2.
Resistance value: 2.7
− 3.4 ohms [at 20°C (68°F)]
Q: Is the measured resistance 2.7
− 3.4 ohms [at 20°C
(68
°F)?
YES : Replace the harness wire between A/T control
solenoid valve assembly connector C-03 and the
solenoid valves.
NO : Replace the overdrive solenoid valve. Refer to
GROUP 23B, Valve Body
AC204748
CONNECTOR : C-03-1
AB
1
2
AC204918
C-03-1 HARNESS CONNECTOR :
OVERDRIVE SOLENOID
VALVE SIDE
CM
1
2
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-185
STEP 6. 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 7.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
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
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-186
STEP 7. Check the harness for an open or short circuit to
ground between A/T control solenoid valve assembly
connector C-03 terminal 5 and PCM connector D-136
terminal 138.
Q: Is the harness wire in good condition?
YES : Replace the PCM.
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
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
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