Mitsubishi Montero (2004+). Manual - part 173

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-179

STEP 10. Check for open circuit and harness damage 
between right bank heated oxygen sensor (front) 
connector B-07 (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.

AK201274

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2

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CONNECTOR: B-07

B-07(B)

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

RIGHT BANK
HEATED OXYGEN
SENSOR (FRONT)

AK200947

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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-180

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 

P.00E-2

. Then go to Step 15. 

AK200947

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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-181

STEP 12. Check for harness damage between right bank 
heated oxygen sensor (front) connector B-07 (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.

AK201274

1

2

3

4

CONNECTOR: B-07

B-07(B)

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

RIGHT BANK
HEATED OXYGEN
SENSOR (FRONT)

AK200947

91

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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-182

STEP 13. Check for short circuit to ground and harness 
damage between right bank heated oxygen sensor (front) 
connector B-07 (terminal No. 4) and PCM connector D-135 
(terminal No. 109).
Q: Is the harness wire in good condition?

YES : Go to Step 14.
NO :  Repair it. Then go to Step 15.

AK201274

1

2

3

4

CONNECTOR: B-07

B-07(B)

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

RIGHT BANK
HEATED OXYGEN
SENSOR (FRONT)

AK200947

91

92

93

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95

96

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101

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103

104

105

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108

109

110

111

112

113

114

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117

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119

120

CONNECTOR: D-135

HARNESS CONNECTOR: 
COMPONENT SIDE

AB

PCM

D-135(GR)