Mitsubishi Montero (2004+). Manual — part 198
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-279
STEP 10. Check for open circuit and harness damage
between left bank heated oxygen sensor (front) connector
B-26 (terminal No. 2) and PCM connector D-135 (terminal
No. 96).
Q: Is the harness wire in good condition?
YES : Replace the PCM. Then go to Step 15.
NO : Repair it. Then go to Step 15.
AK201278
1
2
3
4
CONNECTOR: B-26
B-26(GR)
AC
HARNESS
CONNECTOR:
COMPONENT
SIDE
LEFT BANK
HEATED OXYGEN
SENSOR (FRONT)
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-280
STEP 11. Check harness connector D-135 at PCM for
damage.
Q: Is the harness connector in good condition?
YES : Go to Step 12.
NO : Repair or replace it. Then go to Step 15.
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-281
STEP 12. Check for harness damage between left bank
heated oxygen sensor (front) connector B-26 (terminal No.
2) and PCM connector D-135 (terminal No. 96).
Q: Is the harness wire in good condition?
YES : Go to Step 13.
NO : Repair it. Then go to Step 15.
AK201278
1
2
3
4
CONNECTOR: B-26
B-26(GR)
AC
HARNESS
CONNECTOR:
COMPONENT
SIDE
LEFT BANK
HEATED OXYGEN
SENSOR (FRONT)
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-282
STEP 13. Check for short circuit to ground and harness
damage between left bank heated oxygen sensor (front)
connector B-26 (terminal No. 4) and PCM connector D-135
(terminal No. 108).
Q: Is the harness wire in good condition?
YES : Go to Step 14.
NO : Repair it. Then go to Step 15.
AK201278
1
2
3
4
CONNECTOR: B-26
B-26(GR)
AC
HARNESS
CONNECTOR:
COMPONENT
SIDE
LEFT BANK
HEATED OXYGEN
SENSOR (FRONT)
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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