Mitsubishi Montero (2004+). Manual — part 327
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-795
STEP 7. Check the continuity at accelerator pedal position
sensor harness side connector D-138.
(1) Disconnect the connector D-138 and measure at the
harness side.
(2) Measure the continuity between terminal No. 7 and ground.
• Should be less than 2 ohms.
Q: Does continuity exist?
YES : Go to Step 11.
NO : Go to Step 8.
STEP 8. Check connector D-135 at PCM for damage.
Q: Is the connector in good condition?
YES : Go to Step 9.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 17.
AK200945
3
4
5
1
2
8
6
7
AB
CONNECTOR: D-138
HARNESS
CONNECTOR:
COMPONENT SIDE
D-138(GR)
3
4
5
1
2
8
6
7
AK201455
B-138 HARNESS
CONNECTOR:
COMPONENT SIDE
AB
AK200947
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-796
STEP 9. Check for harness damage between accelerator
pedal position sensor connector D-138 (terminal No. 7) and
PCM connector D-135 (terminal No. 96).
Q: Is the harness wire in good condition?
YES : Go to Step 10.
NO : Repair it. Then go to Step 17.
STEP 10. Using scan tool MB991958, read the diagnostic
trouble code (DTC).
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK"(OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 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 P2138 set?
YES : Replace the PCM. Then go to Step 17.
NO : It can be assumed that this malfunction is intermittent.
Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
AK200945
3
4
5
1
2
8
6
7
AB
CONNECTOR: D-138
HARNESS
CONNECTOR:
COMPONENT SIDE
D-138(GR)
AK200947
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
AK302970
AB
MB991911
MB991824
MB991827
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-797
STEP 11. Check connector D-135 at PCM for damage.
Q: Is the connector in good condition?
YES : Go to Step 12.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 17.
STEP 12. Check for harness damage between accelerator
pedal position sensor connector D-138 (terminal No. 2) and
PCM connector D-135 (terminal No. 92).
Q: Is the harness wire in good condition?
YES : Go to Step 13.
NO : Repair it. Then go to Step 17.
AK200947
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
AK200945
3
4
5
1
2
8
6
7
AB
CONNECTOR: D-138
HARNESS
CONNECTOR:
COMPONENT SIDE
D-138(GR)
AK200947
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-798
STEP 13. Check for harness damage between accelerator
pedal position sensor connector D-138 (terminal No. 8) and
PCM connector D-135 (terminal No. 97).
Q: Is the harness wire in good condition?
YES : Go to Step 14.
NO : Repair it. Then go to Step 17.
AK200945
3
4
5
1
2
8
6
7
AB
CONNECTOR: D-138
HARNESS
CONNECTOR:
COMPONENT SIDE
D-138(GR)
AK200947
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
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