Mitsubishi Outlander (2003+). Manual - part 559

 

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Mitsubishi Outlander (2003+). Manual - part 559

 

 

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-51

(4) Continuity between terminal 33 and body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

 Go to Step 20.

NO : 

 Go to Step 18.

STEP 18. Connector check: B-18X A/C 
compressor relay connector and C-26 A/C-ECU 
connector

Q:  Is the check result normal?

YES : 

Go to Step 19.

NO : 

Repair the connector.

AC301541CP

Connector C-26
(Harness side)

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

AC301483AG

Front of 
vehicle

Relay box side

1

3

2

4

B-18X

-

Connector: B-18X

AC301397

Connector: C-26 
<LHD>

AY

Harness side

C-26(B)

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

AC308735

Connector: C-26 <RHD>

AZ

Harness side

C-26(B)

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-52

STEP 19. Check the wiring harness between 
B-18X A/C compressor relay connector terminal 
No.1 and C-26 A/C-ECU connector terminal 
No.33.

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

Check the A/C compressor relay output line for 
open circuit.

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 20. 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 21.

NO : 

Replace the compressor magnet clutch. 

STEP 21. Check the refrigerant temperature 
switch.

 Refer to 

P.55A-73

.

Q: Is the refrigerant temperature switch operating 

properly?

YES : 

Go to Step 22.

NO : 

Replace the refrigerant temperature switch.

AC301483AG

Front of 
vehicle

Relay box side

1

3

2

4

B-18X

-

Connector: B-18X

AC301398

Connectors: C-26, C-104 <LHD>

C-104

C-26

BK

Harness side

15

1
8

3

10

2
9

11

4

13

12

5

14

16

7

6

C-104(B)

C-26(B)

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

AC308736

Connectors: C-26, C-104 <RHD>

C-104

C-26

AU

Harness side

15

1
8

3

10

2
9

11

4

13

12

5

14

16

7

6

C-104(B)

C-26(B)

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-53

STEP 22. Check the refrigerant level.

 Refer to 

P.55A-51

.

Q: Is the refrigerant level correct?

YES : 

Go to Step 23.

NO : 

Correct the refrigerant level (Refer to 
On-vehicle Servic

P.55A-52

). 

STEP 23. 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 24.

NO : 

Replace the A/C pressure sensor.

STEP 24. Connector check: A-02 A/C pressure 
sensor connector and C-27 A/C-ECU connector

Q: Is the check result normal?

YES : 

Go to Step 25.

NO : 

Repair the connector.

STEP 25. Check the wiring harness between A-02 
A/C pressure sensor connector terminal No.2 
and C-27 A/C-ECU connector terminal No.11.

AC301656

Connector: A-02

AB

Harness side

3 2 1

A-02(B)

AC301397

Connector: C-27 
<LHD>

AX

C-27(B)

Harness side

8

2

10 9

1

5

3

4

6

7

20191817161514131211

AC308735

Connector: C-27 <RHD>

AY

C-27(B)

Harness side

8

2

10 9

1

5

3

4

6

7

20191817161514131211

AC301656

Connector: A-02

AB

Harness side

3 2 1

A-02(B)

AC301397

Connector: C-27 
<LHD>

AX

C-27(B)

Harness side

8

2

10 9

1

5

3

4

6

7

20191817161514131211

AC308735

Connector: C-27 <RHD>

AY

C-27(B)

Harness side

8

2

10 9

1

5

3

4

6

7

20191817161514131211

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-54

NOTE: 

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

Check the A/C pressure sensor signal line for 
open circuit.

Q: Is the check result normal?

YES : 

Go to Step 26.

NO : 

Repair the wiring harness.

STEP 26. Connector check: C-141 engine-ECU 
connector and C-26 A/C-ECU connector

Q: Is the check result normal?

YES : 

Go to Step 27.

NO : 

Repair the connector.

AC301395AU

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

Connector: C-116 <LHD>

AC308735

AP

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

Connector: C-116
<RHD>

AC308719

Connectors: C-26, C-141 <LHD>

C-141

AP

Harness side

C-141 (GR)

C-26 (B)

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

C-26

Harness side

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

AC308736

Connectors: C-26, C-141 <RHD>

C-141

AV

Harness side

C-141 (GR)

C-26 (B)

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

C-26

Harness side

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

 

 

 

 

 

 

 

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