Mitsubishi Montero (2002-2004). Manual — part 91

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-57

STEP 14. Check the flexible flat cable (FFC).
(1) The FCC is connected to the automatic air conditioning

control panel assembly. Check that the FCC connection is
contaminated with foreign material or loose (Refer to

P.55B-136

).

(2) There should be continuity across the FFC terminals.
Q: Is the FFC normal?

YES : Go to Step 15.
NO : Repair the FFC. (Refer to

P.55B-136

.) The

temperature control should work normally.

AC205264AB

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-58

STEP 15. Check the temperature adjustment switch.
Follow the table below to check the temperature adjustment
switch for continuity.

TEMPERATURE
ADJUSTMENT
SWITCH
POSITION

TESTER
CONNECTION

SPECIFIED
CONDITION

1

7

− 10

Less than 2 ohms

2

7

− 8, 7 − 10

Less than 2 ohms

3

7

− 8

Less than 2 ohms

4

6

− 7, 7 − 8

Less than 2 ohms

5

6

− 7, 7 − 8, 7 − 10 Less than 2 ohms

6

6

− 7, 7 − 10

Less than 2 ohms

7

6

− 7

Less than 2 ohms

8

4

− 7, 6 − 7

Less than 2 ohms

9

4

− 7, 6 − 7, 7 − 10 Less than 2 ohms

10

4

− 7, 6 − 7, 7 − 8, 7

− 10

Less than 2 ohms

11

4

− 7, 6 − 7, 7 − 8

Less than 2 ohms

12

4

− 7, 7 − 8

Less than 2 ohms

13

4

− 7, 7 − 8, 7 − 10 Less than 2 ohms

14

4

− 7, 7 − 10

Less than 2 ohms

15

4

− 7

Less than 2 ohms

16

2

− 7, 4 − 7

Less than 2 ohms

17

2

− 7, 4 − 7, 7 − 10 Less than 2 ohms

18

2

− 7, 4 − 7, 7 − 8, 7

− 10

Less than 2 ohms

19

2

− 7, 4 − 7, 7 − 8

Less than 2 ohms

20

2

− 7, 4 − 7, 6 − 7, 7

− 8

Less than 2 ohms

21

2

− 7, 4 − 7, 6 − 7, 7

− 8, 7 − 10

Less than 2 ohms

22

2

− 7, 4 − 7, 6 − 7, 7

− 10

Less than 2 ohms

23

2

− 7, 4 − 7, 6 − 7

Less than 2 ohms

24

2

− 7, 6 − 7

Less than 2 ohms

25

2

− 7, 6 − 7, 7 − 10 Less than 2 ohms

26

2

− 7, 6 − 7, 7 − 8, 7

− 10

Less than 2 ohms

AC205403

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

AB

AC205259

1

2

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

AB

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-59

Q: Is the check result normal?

YES : Replace the A/C-ECU. (Refer to

P.55B-136

.) The

temperature control should work normally.

NO : Replace the automatic air conditioning control panel.

The temperature control should work normally.

27

2

− 7, 6 − 7, 7 − 8

Less than 2 ohms

28

2

− 7, 7 − 8

Less than 2 ohms

29

2

− 7, 7 − 8, 7 − 10 Less than 2 ohms

TEMPERATURE
ADJUSTMENT
SWITCH
POSITION

TESTER
CONNECTION

SPECIFIED
CONDITION

AUTO A/C DIAGNOSIS

TSB Revision

AUTOMATIC AIR CONDITIONING

55B-60

INSPECTION PROCEDURE 4: Blower does not Operate.

Blower Motor Circuit