Mitsubishi Outlander (2003+). Manual - part 532

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-23

STEP 23. Check the wiring harness between C-11 
resistor connector terminal No.4 and C-06 
A/C-ECU connector terminal No.8.

Q: Is the check result normal?

YES : 

The trouble can be an intermittent 

malfunction (Refer to GROUP 00, How to 
Cope with Intermittent Malfunction 

P.00-6

)

NO : 

Repair the wiring harness.

STEP 24. Check the magnetic clutch operation.

Refer to 

P.55A-51

.

Q: Can the sound of the magnetic clutch (click) be 

heard?

YES : 

Go to Step 25.

NO : 

Replace the compressor magnet clutch.

STEP 25. Check the refrigerant temperature 
switch.

Refer to 

P.55A-73

.

Q: Is the refrigerant temperature switch operating 

properly?

YES : 

Go to Step 26.

NO : 

Replace the refrigerant temperature switch.

STEP 26. Check the air thermo sensor.

Refer to 

P.55A-69

.

Q: Is the air thermo sensor in good condition?

YES : 

Go to Step 27.

NO : 

Replace the air thermo sensor.

STEP 27. Connector check: C-10 air thermo 
sensor connector and C-06 A/C-ECU connector

Q: Is the check result normal?

YES : 

Go to Step 28.

NO : 

Repair the connector.

AC308719

Connectors: C-06, C-11 <LHD>

C-06(B)

C-06

C-11

AS

9

1

15

7

4

121110

2

3

13

5

14

6

16

8

1
3

2

4

C-11

Harness side

Harness side

AC308719

Connectors: C-06, C-10 <LHD>

C-06(B)

C-06

C-10

AT

9

1

15

7

4

121110

2

3

13

5

14

6

16

8

C-10

Harness side

4

3

5 6

1

7

2

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-24

STEP 28. Check the wiring harness between C-10 
air thermo sensor connector (terminals 1, 3, 4 
and 5) and C-06 A/C-ECU connector (terminals 
14, 16 and 13).

•

Check the air thermo sensor output and earth line 
for open or short circuit.

Q: Is the check result normal?

YES : 

Go to Step 29.

NO : 

Repair the wiring harness.

STEP 29. Check the refrigerant level.

Refer to 

P.55A-51

.

Q: Is the refrigerant level correct?

YES : 

Go to Step 30.

NO : 

Correct the refrigerant level (Refer to 
On-vehicle Service 

P.55A-52

).

STEP 30. Check the A/C pressure sensor 
operation.

Refer to 

P.55A-51

.

Q: Is the A/C pressure sensor operating properly?

YES : 

Go to Step 31.

NO : 

Replace the A/C pressure sensor.

STEP 31. Connector check: A-02 A/C pressure 
sensor connector and C-06 A/C-ECU connector

Q: Is the check result normal?

YES : 

Go to Step 32.

NO : 

Repair the connector.

AC308719

Connectors: C-06, C-10 <LHD>

C-06(B)

C-06

C-10

AT

9

1

15

7

4

121110

2

3

13

5

14

6

16

8

C-10

Harness side

4

3

5 6

1

7

2

AC308677

Connector: A-02 <LHD>

AI

Harness side

3 2 1

A-02(B)

AC308718

Connector: C-06 <LHD>

AZ

9

1

15

7

4

12 1110

2

3

13

5

14

6

16

8

C-06(B)

Harness side

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-25

STEP 32. Check the wiring harness between A-02 
A/C pressure sensor connector terminal No.2 
and C-06 A/C-ECU connector terminal No.15.

NOTE: 

Prior to the wiring harness inspection, check interme-
diate connector C-116, and repair if necessary.

•

Check the A/C pressure sensor output line for 
open or short circuit.

Q: Is the check result normal?

YES <2000> : 

Go to Step 33.

YES <2400> : 

Go to Step 36.

NO : 

Repair the wiring harness.

STEP 33. Connector check: C-134, C-135 
engine-ECU connector and C-06 A/C-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 34.

NO : 

Repair the connector.

AC308677

Connector: A-02 <LHD>

AI

Harness side

3 2 1

A-02(B)

AC308718

Connector: C-06 <LHD>

AZ

9

1

15

7

4

12 1110

2

3

13

5

14

6

16

8

C-06(B)

Harness side

AC308716

Connector: C-116

AY

C-116

<LHD>

9

21

33

35

24

12

3 4

7

8

5 6

39

28

41

30

18

4243

31

1920

32

40

29

1617

38

27

15

37

36

26

14

13

25

2

1

34

23

11

10

22

AC308718

Connector: C-06 <LHD>

AZ

9

1

15

7

4

12 1110

2

3

13

5

14

6

16

8

C-06(B)

Harness side

AC309482

C-134

C-135

AB

Connectors: C-134, C-135 <2000>

Harness side

C-134

C-135

22

9

14

15

2 1

3

16

1918

5 4

17

6

21

7

20

8

25

12

10

23

11

24

26

13

JAE-E

Harness side

39

31

45

37

42

34

40

41

32

33

4443

35

36

46

38

JAE-E

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-26

STEP 34. Check the wiring harness between 
C-134 engine-ECU connector terminal No.24 and 
C-06 A/C-ECU connector terminal No.5.

NOTE: Prior to the wiring harness inspection, check 
intermediate connector C-104, and repair if neces-
sary.

•

Check the communication line for open or short 
circuit.

Q: Is the check result normal?

YES : 

Go to Step 35.

NO : 

Repair the wiring harness.

STEP 35. Check the wiring harness between 
C-135 engine-ECU connector terminal No.45 and 
C-06 A/C-ECU connector terminal No.4.

NOTE: Prior to the wiring harness inspection, check 
intermediate connector C-104, and repair if neces-
sary.

•

Check the communication line for open or short 
circuit.

Q: Is the check result normal?

YES : 

Replace the manual air conditioner control 

panel (A/C-ECU) or engine-ECU.

NO : 

Repair the wiring harness.

AC308719

AR

Connectors: C-06, C-104 <LHD>

C-06(B)

C-06

9

1

15

7

4

121110

2

3

13

5

14

6

16

8

Harness side

C-104(B)

15

1
8

3

10

2
9

11

4

13

12

5

14

16

7

6

C-104

AC309474AB

Connector: C-134 <2000>

Harness side

22

9

14

15

2 1

3

16

1918

5 4

17

6

21

7

20

8

25

12

10

23

11

24

26

13

JAE-E

AC308719

AR

Connectors: C-06, C-104 <LHD>

C-06(B)

C-06

9

1

15

7

4

121110

2

3

13

5

14

6

16

8

Harness side

C-104(B)

15

1
8

3

10

2
9

11

4

13

12

5

14

16

7

6

C-104

AC309474AC

Connector: C-135 <2000>

Harness side

39

31

45

37

42

34

40

41

32

33

4443

35

36

46

38

JAE-E