Mitsubishi Montero (2004+). Manual - part 657

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-117

NOTE: Also check joint connector (3) A-17. If joint connector 
(3) A-17 is damaged, repair or replace the connector as 
described in GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between condenser fan control 

relay connector A-09X (terminal 5) and the fusible link 
(1) in good condition?
YES : Check that the air conditioning works normally.
NO :  Repair the wiring harness. Check that the air 

conditioning works normally.

STEP 10. Check condenser fan control relay connector 
A-09X and condenser fan motor connector A-26 for 
damage.

Q:  Is condenser fan control relay connector A-09X and 

condenser fan motor connector A-26 in good 
condition?
YES : Go to Step 11.
NO :  Repair or replace the connector. Refer to GROUP 

00E, Harness Connector Inspection 

P.00E-2

. Check 

that the air conditioning works normally.

AC204167

CONNECTOR : A-17

AF

A-17(GR)

A-17(GR)

14

13

4

1112

5

3

10

8 9

2

7

1

6

AC204183

CONNECTOR : A-09X

AO

2 1

5

4

3

RELAY BOX SIDE

AC204167

CONNECTOR : A-26

AX

A-26(B)

A-26(B)

1

2

HARNESS SIDE

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-118

STEP 11. Check the wiring harness between condenser fan 
control relay connector A-09X (terminal 4) and condenser 
fan motor connector A-26 (terminal 1).

NOTE: Also check joint connector (1) A-16. If joint connector 
(1) A-16 is damaged, repair or replace the connector as 
described in GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between condenser fan control 

relay connector A-09X (terminal 4) and condenser fan 
motor connector A-26 (terminal 1) in good condition?
YES : Go to Step 12.
NO :  Repair the wiring harness. Check that the air 

conditioning works normally.

AC204183

CONNECTOR : A-09X

AO

2 1

5

4

3

RELAY BOX SIDE

AC204185

CONNECTORS : A-16, A-26

A-16

HARNESS SIDE

HARNESS SIDE

A-16

A-26(B)

AM

A-26(B)

2 1

5 4 3

6

1

2

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-119

STEP 12. Check condenser fan control relay connector 
A-09X and powertrain control module D-132 for damage.
Q:  Is condenser fan control relay connector A-09X and 

powertrain control module D-132 in good condition?
YES : Go to Step 13.
NO :  Repair or replace the connector. Refer to GROUP 

00E, Harness Connector Inspection 

P.00E-2

. Check 

that the air conditioning works normally.

STEP 13. Check the wiring harness between condenser fan 
control relay connector A-09X (terminal 1) and powertrain 
control module D-132 (terminal 17).

AC204183

CONNECTOR : A-09X

AO

2 1

5

4

3

RELAY BOX SIDE

AC204171

CONNECTOR : D-132

D-132(GR)

D-132(GR)

AS

HARNESS SIDE

8

23

1110

24

9

6

22

7

16

17

15

3

4

1312

19

20
2726

2

1
5

14
21

25

18

AC204183

CONNECTOR : A-09X

AO

2 1

5

4

3

RELAY BOX SIDE

AC204171

CONNECTOR : D-132

D-132(GR)

D-132(GR)

AS

HARNESS SIDE

8

23

1110

24

9

6

22

7

16

17

15

3

4

1312

19

20
2726

2

1
5

14
21

25

18

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-120

NOTE: Also check intermediate connector A-03. If intermediate 
connector A-03 is damaged, repair or replace the connector as 
described in GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between condenser fan control 

relay connector A-09X (terminal 1) and powertrain 
control module D-132 (terminal 17) in good condition?
YES : Check that the air conditioning works normally.
NO :  Repair the wiring harness. Check that the air 

conditioning works normally.

STEP 14. Check the condenser fan motor.

When battery voltage is applied between the condenser fan 
motor terminals, the motor should run.
Q: Is the check result normal?

YES :  Go to Step 15.
NO :  Replace the condenser fan motor.

STEP 15. Measure the resistance at condenser fan motor 
connector A-26.

(1) Disconnect condenser fan motor connector A-26, and 

measure the resistance at the wiring harness side.

(2) Measure the resistance value between terminal 2 and 

ground.

• 2 ohms or less

Q: Does the measured resistance value correspond with 

this range?
YES : No action to be taken.
NO :   Go to Step 16.

AC204167

CONNECTOR : A-03

AT

A-03 (B)

6

12

5

3 4

2

1

9 10

8

7

11

ACX00845 AB

AC204167

CONNECTOR : A-26

AX

A-26(B)

A-26(B)

1

2

HARNESS SIDE

AC204738

HARNESS SIDE : A-26

1

2

DK