Mitsubishi Montero (2002-2004). Manual — part 712
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
13Ac-545
STEP 8. Check for open circuit and short circuit to ground
between throttle actuator control motor relay connector B-
23X (terminal No. 1) and PCM connector D-136 (terminal
No. 132).
Q: Is the harness wire in good condition?
YES : Go to Step 9.
NO : Repair it. Then go to Step 14.
AK201172
2 1
3
4
B-23X
AB
CONNECTOR: B-23X
HARNESS
CONNECTOR:
COMPONENT SIDE
AK201170
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
CONNECTOR: D-136
PCM
D-136(GR)
HARNESS CONNECTOR:
COMPONENT SIDE
AB
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
13Ac-546
STEP 9. Check for harness damage between MFI relay
connector B-22X (terminal No. 1) and throttle actuator
control motor relay connector B-23X (terminal No. 4).
Q: Is the harness wire in good condition?
YES : Repair harness wire between throttle actuator control
motor relay connector B-23X (terminal No. 2) and
PCM connector D-132 (terminal No. 15) because of
harness damage. Then go to Step 14.
NO : Repair it. Then go to Step 14.
STEP 10. Check connector D-132 and D-136 at PCM for
damage.
Q: Is the connector in good condition?
YES : Go to Step 11.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 14.
AK200951
2 1
3
4
B-22X
AB
CONNECTOR: B-22X
HARNESS
CONNECTOR:
COMPONENT SIDE
AK201172
2 1
3
4
B-23X
AB
CONNECTOR: B-23X
HARNESS
CONNECTOR:
COMPONENT SIDE
2
3
4
5
6
7
8
9
1
10
14
15
16
17
18
19
20
21
22
23
24
25
26
27
11
12
13
AK201566
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
CONNECTORS: D-132, D-136
D-132 HARNESS CONNECTOR:
COMPONENT SIDE
PCM
D-132(GR) D-136(GR)
AB
D-136 HARNESS CONNECTOR:
COMPONENT SIDE
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DIAGNOSTIC TROUBLE CODE PROCEDURES
13Ac-547
STEP 11. Check for harness damage between fusible link
(5) and throttle actuator control motor relay connector B-
23X (terminal No. 3).
Q: Is the harness wire in good condition?
YES : Go to Step 12.
NO : Repair it. Then go to Step 14.
STEP 12. Check for harness damage between throttle
actuator control motor relay connector B-23X (terminal No.
1) and PCM connector D-136 (terminal No. 132).
Q: Is the harness wire in good condition?
YES : Go to Step 13.
NO : Repair it. Then go to Step 14.
AK201172
2 1
3
4
B-23X
AB
CONNECTOR: B-23X
HARNESS
CONNECTOR:
COMPONENT SIDE
AK201172
2 1
3
4
B-23X
AB
CONNECTOR: B-23X
HARNESS
CONNECTOR:
COMPONENT SIDE
AK201170
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
CONNECTOR: D-136
PCM
D-136(GR)
HARNESS CONNECTOR:
COMPONENT SIDE
AB
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
13Ac-548
STEP 13. Using scan tool MB991502, read the diagnostic
trouble code (DTC).
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) After the DTC has been deleted, read the DTC again.
(4) Turn the ignition switch to the "LOCK"(OFF) position.
Q: Is DTC P0657 set?
YES : Replace the PCM. Then go to Step 14.
NO : It can be assumed that this malfunction is intermittent.
Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points
STEP 14. Using scan tool MB991502, read the diagnostic
trouble code (DTC).
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) After the DTC has been deleted, read the DTC again.
(4) Turn the ignition switch to the "LOCK"(OFF) position.
Q: Is DTC P0657 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
ACX01539
16-PIN
MB991502
AC
ACX01539
16-PIN
MB991502
AC
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