Mitsubishi Montero (2004+). Manual — part 211
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-331
STEP 7. Check harness connector C-15 at left bank heated
oxygen sensor (rear) for damage.
Q: Is the harness connector in good condition?
YES : Go to Step 8.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 15.
AK201280
1
2
3
4
CONNECTOR: C-15
C-15(B)
AC
HARNESS
CONNECTOR:
COMPONENT SIDE
LEFT BANK
HEATED OXYGEN
SENSOR (REAR)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-332
STEP 8. Check the continuity at left bank heated oxygen
sensor (rear) harness side connector C-15.
(1) Disconnect the connector C-15 and measure at the harness
side.
(2) Check for the continuity between terminal No. 2 and
ground.
• Should be less than 2 ohms.
Q: Does continuity exist?
YES : Go to Step 11.
NO : Go to Step 9.
STEP 9. Check harness connector D-135 at PCM for
damage.
Q: Is the harness connector in good condition?
YES : Go to Step 10.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 15.
AK201280
1
2
3
4
CONNECTOR: C-15
C-15(B)
AC
HARNESS
CONNECTOR:
COMPONENT SIDE
LEFT BANK
HEATED OXYGEN
SENSOR (REAR)
AK000239 AX
1
2
4 3
C-15 HARNESS
CONNECTOR:
COMPONENT SIDE
AK200947
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96
97
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112
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CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-333
STEP 10. Check for open circuit and harness damage
between left bank heated oxygen sensor (rear) connector
C-15 (terminal No. 2) and PCM connector D-135 (terminal
No. 96).
NOTE: Check harness after checking intermediate connector
E-112. If intermediate connector E-112 is damaged, repair or
replace it. Refer to GROUP 00E, Harness Connector Inspec-
tion
. Then go to Step 15.
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.
AK201280
1
2
3
4
CONNECTOR: C-15
C-15(B)
AC
HARNESS
CONNECTOR:
COMPONENT SIDE
LEFT BANK
HEATED OXYGEN
SENSOR (REAR)
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-334
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. Refer to GROUP 00E, Harness
Connector Inspection
. 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)
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