Mitsubishi Montero (2002-2004). Manual - part 47

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-51

STEP 15. Check the wiring harness between rear cooler 
unit connector G-13 (terminal 4 and 3) and air thermo 
sensor connector G-13-3 (terminal 1 and 2).
NOTE: Also check intermediate connector G-13-1. If intermedi-
ate connector G-13-1 is damaged, repair or replace the con-
nector as described in GROUP 00E, Harness Connector 
Inspection 

P.00E-2

.

Q: Is the wiring harness between rear cooler unit 

connector G-13 (terminal 4 and 3) and air thermo sensor 
connector G-13-3 (terminal 1 and 2) in good condition?
YES : Go to Step 16.
NO :  Repair the wiring harness. Check that the rear air 

conditioning works normally.

AC204179

CONNECTOR : G-13

AO

HARNESS SIDE

1

2

3

4

AC204699

CONNECTORS : G-13-1, G-13-3

AF

G-13-1

G-13-3

G-13-1

G-13-3

HARNESS SIDE

<VEHICLES WITH REAR COOLER>

8

4

7

3

5

1

6

2

1
2

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-52

STEP 16. Check rear cooler unit connector G-13 and rear 
cooler control unit connector E-09 for damage.
Q: Is rear cooler unit connector G-13 and rear cooler 

control unit connector E-09 in good condition?
YES : Go to Step 17.
NO :  Repair or replace the connector. Refer to GROUP 

00E, Harness Connector Inspection 

P.00E-2

. Check 

that the rear air conditioning works normally.

AC204176

CONNECTOR : E-09

AW

7

8

3

10 9

2

4

11

1312

5

14

6

1

HARNESS SIDE

AC204179

CONNECTOR : G-13

AO

HARNESS SIDE

1

2

3

4

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-53

STEP 17. Check the wiring harness between rear cooler 
unit connector G-13 (terminal 1, 4 and 3) and rear cooler 
control unit connector E-09 (terminal 1, 8 and 12).

NOTE: Also check intermediate connector D-112. If intermedi-
ate connector D-112 is damaged, repair or replace the connec-
tor as described in GROUP 00E, Harness Connector 
Inspection 

P.00E-2

.

Q: Is the wiring harness between rear cooler unit 

connector G-13 (terminal 1, 4 and 3) and rear cooler 
control unit connector E-09 (terminal 1, 8 and 12) in 
good condition?
YES : Check that the rear air conditioning works normally.
NO :  Repair the wiring harness. Check that the rear air 

conditioning works normally.

AC204176

CONNECTOR : E-09

AW

7

8

3

10 9

2

4

11

1312

5

14

6

1

HARNESS SIDE

AC204179

CONNECTOR : G-13

AO

HARNESS SIDE

1

2

3

4

AC204171 AL

CONNECTOR : D-112

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

REAR AIR CONDITIONING DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55A-54

INSPECTION PROCEDURE 4: Rear Air Conditioning Outlet Air Temperature does not Increase 
<Vehicles with Rear A/C>

Air Mixing Damper Control Motor, Air Thermo Sensor and Magnetic Valve Circuit