Mitsubishi Montero (2004+). Manual — part 902
AUTOMATIC TRANSMISSION DIAGNOSIS
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AUTOMATIC TRANSMISSION
23A-183
STEP 4. Measure the low-reverse 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 6 and 10.
Resistance value: 2.7
− 3.4 Ω [at 20°C (68°F)]
Q: Is the measured resistance 2.7
− 3.4 Ω [at 20°C (68°F)]?
YES : Go to Step 6.
NO : Go to Step 5.
STEP 5. Measure the solenoid valve resistance at the
low-reverse solenoid valve connector C-03-6 inside the
transmission.
(1) Disconnect solenoid valve connector C-03-6 and measure
at the solenoid valve side.
(2) Measure the resistance between low-reverse solenoid
valve terminals 1 and 2.
Resistance value: 2.7
− 3.4 Ω [at 20°C (68°F)]
Q: Is the measured resistance 2.7
− 3.4 Ω [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 low-reverse solenoid valve. Refer to
GROUP 23B, Valve Body
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
CW
6
10
4
9
5
3
8
2
7
1
AC204748
CONNECTOR : C-03-6
AG
1
2
AC204918
C-03-6 HARNESS CONNECTOR :
LOW-REVERSE SOLENOID
VALVE SIDE
CR
1
2
AUTOMATIC TRANSMISSION DIAGNOSIS
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AUTOMATIC TRANSMISSION
23A-184
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
AUTOMATIC TRANSMISSION DIAGNOSIS
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AUTOMATIC TRANSMISSION
23A-185
STEP 7. Check the harness for an open or short circuit to
ground between A/T control solenoid valve assembly
connector C-03 terminal 6 and PCM connector D-136
terminal 128.
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
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-186
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 10 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 AK
C-03 HARNESS CONNECTOR :
HARNESS SIDE
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