Mitsubishi Montero (2002-2004). Manual - part 104

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-109

STEP 4. Measure the voltage at condenser fan relay 
connector A-09X. 
(1) Disconnect condenser fan relay connector A-09X and 

measure the voltage at the relay box side.

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal 3 and ground.

• The measured value should be approximately 12 volts 

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES :  Go to Step 7.
NO :   Go to Step 5.

STEP 5. Check condenser fan relay connector A-09X for 
damage.
Q:  Is condenser fan relay connector A-09X in good 

condition?
YES : Go to Step 6.
NO :  Repair or replace the connector. Refer to GROUP 

00E, Harness Connector Inspection 

P.00E-2

. Check 

that the condenser motor works normally.

AC204183

CONNECTOR : A-09X

AO

2 1

5

4

3

RELAY BOX SIDE

AC204738 CD

RELAY BOX SIDE : A-09X

2 1

5

4

3

AC204183

CONNECTOR : A-09X

AO

2 1

5

4

3

RELAY BOX SIDE

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-110

STEP 6. Check the wiring harness between condenser fan 
relay connector A-09X (terminal 3) and the ignition switch 
(IG1).

AC204183

CONNECTOR : A-09X

AO

2 1

5

4

3

RELAY BOX SIDE

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-111

NOTE: Also check intermediate connector D-28, joint connec-
tor (2) A-15, junction block connectors D-210 and D-208. If 
intermediate connector D-28, joint connector (2) A-15, junction 
block connectors D-210 or D-208 is damaged, repair or replace 
the connector as described in GROUP 00E, Harness Connec-
tor Inspection 

P.00E-2

.

Q: Is the wiring harness between condenser fan relay 

connector A-09X (terminal 3) and the ignition switch 
(IG1) in good condition?
YES : Check that the air conditioning works normally.
NO :  Repair the wiring harness. Check that the air 

conditioning works normally.

AC204167

CONNECTOR : A-15

AD

14

13

4

1112

5

3

10

8 9

2

7

1

6

AC204170

CONNECTOR : D-28

AI

2 3

27

32

28

33

16

15

4 5

19

18

29

17

34

7 8

35

22

21

9 10

30

36

31

37

25

24

23

6

20

1

14

26

11

13

12

38

AC204191

CONNECTORS: D-208, D-210

D-208

AC

HARNESS SIDE

HARNESS SIDE

D-210

D-208

D-210

1

2

3

5

6

4

1

2

7 6

3

9

4

11

12

10

13

5

8

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-112

STEP 7. Measure the voltage at condenser fan relay 
connector A-09X.
(1) Disconnect condenser fan relay connector A-09X and 

measure the voltage at the relay box side.

(2) Measure the voltage between terminal 5 and ground.

• The measured value should be approximately 12 volts 

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES :  Go to Step 10.
NO :   Go to Step 8.

STEP 8. Check condenser fan relay connector A-09X for 
damage.
Q:  Is condenser fan relay connector A-09X in good 

condition?
YES : Go to Step 9.
NO :  Repair or replace the connector. Refer to GROUP 

00E, Harness Connector Inspection 

P.00E-2

. Check 

that the air conditioning works normally.

AC204183

CONNECTOR : A-09X

AO

2 1

5

4

3

RELAY BOX SIDE

AC204738 CU

RELAY BOX SIDE : A-09X

2 1

5

4

3

AC204183

CONNECTOR : A-09X

AO

2 1

5

4

3

RELAY BOX SIDE