Mitsubishi Montero (2002-2004). Manual — part 927
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
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STEP 12. Check the harness for an open or short circuit to
ground between A/T control solenoid valve assembly
connector C-03 (terminals 3, 4 and 5) and PCM connector
D-136 (terminals 136, 137 and 138).
Q: Are the harness wires in good condition?
YES : Go to Step 13.
NO : Repair or replace the harness wire(s).
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
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
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STEP 13. Check the harness for an open or short circuit to
ground between A/T control solenoid valve assembly
connector C-03 (terminals 3, 4, 5 and 9) and solenoid valve
connectors C-03-1, C-03-2 and C-03-3.
Q: Is the harness wire in good condition?
YES : Replace the PCM.
NO : Replace the harness wire.
AC204395
CONNECTOR : C-03
AE
C-03 (B)
6
10
4
9
5
3
8
2
7
1
AC204749
1
2
CONNECTORS : C-03-1, C-03-2, C-03-3
C-03-1
C-03-1
1
2
C-03-2
1
2
C-03-3
C-03-2
C-03-3
AB
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
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DTC 35: Reduction Solenoid Valve System
.
Solenoid Valve System Circuit
Refer to
.
.
CIRCUIT OPERATION
Refer to
.
.
DTC SET CONDITIONS
If the resistance value for the reduction solenoid
valve circuit is greater than 3.5 ohms (open) or less
than 2.6 ohms (short) for 4 seconds, DTC 32 is set.
The transmission is locked into 3rd gear as a fail-
safe measure, and the "N" range light flashes once
per second.
.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)
• Malfunction of reduction solenoid valve
• Damaged harness, connector
• Malfunction of the PCM
DIAGNOSIS
Required Special Tool:
• MB991502: Scan Tool (MUT-II)
STEP 1. Using scan tool MB991502, check actuator test
item 05: Reduction Solenoid Valve.
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) Set scan tool MB991502 to actuator test mode for item 05,
Reduction Solenoid Valve.
• An audible clicking or buzzing should be heard when the
reduction solenoid valve is energized.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the solenoid valve 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 Malfunctions
.
NO : Go to Step 2.
ACX01539AD
MB991502
16-PIN
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-194
STEP 2. 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: Is DTC 54 set? (DTC 54 may be set along with multiple
DTCs.)
YES : Refer to
DTC 54: A/T Control Relay
System.
NO : Go to Step 3.
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 31 and DTC 36 set? (Multiple DTCs may be set.)
YES : Go to Step 8.
NO : Go to Step 4.
STEP 4. Measure the reduction 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 8 and 10.
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
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
CY
6
10
4
9
5
3
8
2
7
1
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