Mitsubishi Montero (2002-2004). Manual - part 643

 

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Mitsubishi Montero (2002-2004). Manual - part 643

 

 

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-269

STEP 7. Check for open circuit or short circuit to ground 
between left bank heated oxygen sensor (rear) connector 
C-15 (terminal No. 3) and PCM connector D-132 (terminal 
No. 18).
NOTE: Check harness after checking intermediate connector 
E-114. If intermediate connector E-114 is damaged, repair or 
replace it. Refer to GROUP 00E, Harness Connector Inspec-
tion 

P.00E-2

. Then go to Step 12.

Q: Is the harness wire in good condition?

YES : Replace the PCM. Then go to Step 12.
NO :  Repair it. Then go to Step 12.

AK201280

1

2

3

4

CONNECTOR: C-15

C-15(B)

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

RIGHT BANK
HEATED OXYGEN
SENSOR (REAR)

AK200938

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14

15

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27

11

12

13

AB

CONNECTOR: D-132

HARNESS CONNECTOR: 
COMPONENT SIDE

PCM

D-132(GR)

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-270

STEP 8. Check harness connector D-132 at PCM for 
damage.
Q: Is the harness connector in good condition?

YES : Go to Step 9.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 12. 

AK200938

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AB

CONNECTOR: D-132

HARNESS CONNECTOR: 
COMPONENT SIDE

PCM

D-132(GR)

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-271

STEP 9. Check for harness damage between MFI relay 
connector B-22X (terminal No. 1) and left bank heated 
oxygen sensor (rear) connector C-15 (terminal No. 1).
NOTE: Check harness after checking intermediate connectors 
E-114 and D-116. If intermediate connectors E-114 and D-116 
are damaged, repair or replace them. Refer to GROUP 00E, 
Harness Connector Inspection 

P.00E-2

. Then go to Step 12.

Q: Is the harness wire in good condition?

YES : Go to Step 10.
NO :  Repair it. Then go to Step 12.

AK200951

2 1

3

4

B-22X

AB

CONNECTOR: B-22X

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201280

1

2

3

4

CONNECTOR: C-15

C-15(B)

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

RIGHT BANK
HEATED OXYGEN
SENSOR (REAR)

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-272

STEP 10. Check for harness damage between left bank 
heated oxygen sensor (rear) connector C-15 (terminal No. 
3) and PCM connector D-132 (terminal No. 18).
NOTE: Check harness after checking intermediate connector 
E-114. If intermediate connector E-114 is damaged, repair or 
replace it. Refer to GROUP 00E, Harness Connector Inspec-
tion 

P.00E-2

. Then go to Step 12.

Q: Is the harness wire in good condition?

YES : Go to Step 11.
NO :  Repair it. Then go to Step 12.

STEP 11. Check the trouble symptoms.
(1) Carry out a test drive with the drive cycle pattern. Refer to 

GROUP 13A, Procedure 6 

− Other Monitor 

P.13Ab-2

.

(2) Read in the diagnostic trouble code (DTC).
Q: Is DTC P0161 set?

YES : Replace the PCM. Then go to Step 12.
NO :  It can be assumed that this malfunction is intermittent. 

Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points 

P.00-6

AK201280

1

2

3

4

CONNECTOR: C-15

C-15(B)

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

RIGHT BANK
HEATED OXYGEN
SENSOR (REAR)

AK200938

2

3

4

5

6

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8

9

1

10

14

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22

23

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27

11

12

13

AB

CONNECTOR: D-132

HARNESS CONNECTOR: 
COMPONENT SIDE

PCM

D-132(GR)

 

 

 

 

 

 

 

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