Mitsubishi Outlander (2003+). Manual - part 560

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-55

STEP 27. Check the wiring harness between 
C-141 engine-ECU connector terminal No.78 and 
C-26 A/C-ECU connector terminal No.32.

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

•

Check the communication line for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 28.

NO : 

Repair the wiring harness.

STEP 28. Check the wiring harness between 
C-141 engine-ECU connector terminal No.69 and 
C-26 A/C-ECU connector terminal No.34.

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

•

Check the communication line for open circuit.

Q: Is the check result normal?

YES : 

Replace the A/C-ECU or engine-ECU.

NO : 

Repair the wiring harness.

AC308719

Connectors: C-26, C-104, C-141 <LHD>

C-141

AQ

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

C-104 (B)

C-104

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

AC308736

Connectors: C-26, C-104, C-141 <RHD>

C-141

AW

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

C-104 (B)

C-104

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

Connectors: C-26, C-104, C-141 <LHD>

C-141

AQ

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

C-104 (B)

C-104

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

AC308736

Connectors: C-26, C-104, C-141 <RHD>

C-141

AW

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

C-104 (B)

C-104

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

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-56

INSPECTION PROCEDURE 3: A/C outlet air temperature cannot be set.

COMMENTS ON TROUBLE SYMPTOM
When the blower air temperature can not be 
changed even if the preset temperature is changed, 
the sensors, the air mixing damper control motor and 
potentiometer or the A/C-ECU may be defective.

Possible causes

•

Malfunction of the A/C-ECU

DIAGNOSIS

Read diagnosis code by using the MUT-II.

Q: Is the diagnosis code set?

YES : 

Refer to diagnosis code chart 

P.55B-4

.

NO : 

Replace the automatic air conditioner 
control panel (A/C-ECU).

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-57

INSPECTION PROCEDURE 4: The blower does not work.

COMMENTS ON TROUBLE SYMPTOM
If the blower motor does not operate, the blower 
motor circuit system may be defective.

Possible causes

•

Malfunction of the blower motor (blower linear 
controller).

•

Malfunction of the automatic air conditioner 
control panel (A/C-ECU)

•

Damaged the wiring harness or connectors

DIAGNOSIS

Step 1. MUT-II/III actuator test

Carry out the actuator test.

•

Item 01, 02, 03, 04: Blower motor

Q: Does the blower motor work normally? 

YES : 

Replace the automatic air conditioner 

control panel (A/C-ECU).

NO : 

Go to Step 2.

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue      
W : White     Y : Yellow     SB : Sky blue     BR : Brown 
O : Orange     GR : Gray     R : Red     P : Pink     V : Violet  

FUSIBLE
LINK

1

FUSIBLE
LINK

1

IGNITION
SWITCH (IG2)

BLOWER
RELAY

A/C-ECU

<LHD>

<RHD>

<LHD>

<RHD>

BLOWER
LINEAR
CONTROLLER

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-58

Step 2. Measure the voltage at the C-32 blower 
linear controller connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

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

(3) measure the voltage between terminal 6 and 

body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 15.

NO : 

Go to Step 3.

Step 3. Check the blower relay.

Refer to GROUP 55A, On-vehicle Service 

−

 Power 

relay check 

P.55A-57

.

Q: Is the blower relay in good condition?

YES : 

Go to Step 4.

NO : 

Replace the blower relay.

Step 4. Measure the voltage at C-207 blower relay 
connector.

(1) Remove the relay, and measure at the junction 

block side.

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

(3) Voltage between terminal 1 and body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Go to Step 5.

AC301397

Connector: C-32 
<LHD>

BE

Harness side

4

6 5

3

2

1

AC308735

Connector: C-32 <RHD>

BF

Harness side

4

6 5

3

2

1

AC301541CI

Connector C-32
(Harness side)

4

6 5

3

2

1

AC210474

Connector: C-207 <LHD>

AN

Junction block (Front view)

3

4

5

1

2

Junction block side

AC308772

Connector: C-207 <RHD>

AO

Junction block (Front view)

3

4

5

1

2

Junction block side

AC301541CB

Connector C-207
(Junction block side)

3

4

5

1

2