Mitsubishi Montero (2002-2004). Manual — part 625
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
13Ac-197
STEP 7. Check harness connector B-26 at left bank heated
oxygen sensor (front) 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.
AK201278
1
2
3
4
CONNECTOR: B-26
B-26(GR)
AB
HARNESS
CONNECTOR:
COMPONENT
SIDE
RIGHT BANK
HEATED OXYGEN
SENSOR (FRONT)
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
13Ac-198
STEP 8. Check the continuity at left bank heated oxygen
sensor (front) harness side connector B-26.
(1) Disconnect the connector B-26 and measure at the harness
side.
(2) Check for the continuity between terminal No. 2 and
ground.
• Should be less than 2 ohms.
Q: Is the continuity normal?
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.
AK201278
1
2
3
4
CONNECTOR: B-26
B-26(GR)
AB
HARNESS
CONNECTOR:
COMPONENT
SIDE
RIGHT BANK
HEATED OXYGEN
SENSOR (FRONT)
AKX01497
B-26 HARNESS
CONNECTOR:
COMPONENT SIDE
1
2
4
3
AG
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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DIAGNOSTIC TROUBLE CODE PROCEDURES
13Ac-199
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)
AB
HARNESS
CONNECTOR:
COMPONENT
SIDE
RIGHT 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)
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
13Ac-200
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)
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