Mitsubishi Outlander (2003+). Manual - part 565

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-75

Step 4. Check the wiring harness between C-311 
outside/inside air selection damper control motor 
connector terminal No.7 and the ignition switch 
(IG2). 

NOTE: 

Prior to the wiring harness inspection, check 
intermediate connector C-36 and junction block 
connectors C-203 and C-205, and repair if 
necessary.

•

Check the motor power supply 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.

AC308739

AH

C-311

Connector: C-311             

<LHD>

Harness side

6

2

7

3

5 4

1

AC308739

AG

C-311

Connector: C-311             

<RHD>

Harness side

6

2

7

3

5 4

1

AC308718

Connector: C-36

AV

C-36

<LHD>

1 2

4

3

12

11

10

9

8

7

6

13

5

AC308735

Connector: C-36

BC

C-36

<RHD>

1 2

4

3

12

11

10

9

8

7

6

13

5

AC308721

Connectors: C-203, C-205

AQ

Junction block (Front view)

C-205

Harness side

Harness side

C-205

C-203

C-203

<LHD>

4

6 5

3

2

1

21

7

16 15

17

18

20 19

1

2

3

4

5

6

23 22

24

25

28

26

27

9

8

10

11

14

12

13

AC308773

Connectors: C-203, C-205

AR

Junction block (Front view)

C-205

Harness side

C-205

C-203

C-203

Harness side

<RHD>

4

6 5

3

2

1

21

7

16 15

17

18

20 19

1

2

3

4

5

6

23 22

24

25

28

26

27

9

8

10

11

14

12

13

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-76

Step 5. Check the outside/inside air selection 
damper control motor

Refer to GROUP 55A, Resistor, blower motor and 
inside/outside air selection damper control motor 

P.55A-67

.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Replace the outside/inside air selection 
damper control motor.

Step 6. Connector check: C-26 A/C-ECU 
connector and C-311 outside/inside air selection 
damper control motor connector

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the connector.

AC308718

Connector: C-26

AT

C-26(B)

Harness side

<LHD>

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

AC308735

Connector: C-26

BA

C-26(B)

Harness side

<RHD>

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

AC308739

AH

C-311

Connector: C-311             

<LHD>

Harness side

6

2

7

3

5 4

1

AC308739

AG

C-311

Connector: C-311             

<RHD>

Harness side

6

2

7

3

5 4

1

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-77

Step 7. Check the wiring harness between C-26 
A/C-ECU connector (terminals 23 and 26) and 
C-311 outside/inside air selection damper control 
motor connector (terminals 6 and 4).

NOTE: Prior to the wiring harness inspection, check 
intermediate connector C-36, and repair if necessary.

•

Check the motor activating lines for open or short 
circuit.

Q: Is the check result normal?

YES : 

Replace the automatic air conditioner 

control panel (A/C-ECU).

NO : 

Repair the wiring harness.

AC308719

Connectors: C-26, C-36

AL

C-36

Harness side

C-26

C-36

C-26(B)

<LHD>

1 2

4

3

12

11

10

9

8

7

6

13

5

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

AC308736

Connectors: C-26, C-36

AN

C-36

Harness side

C-26

C-36

C-26(B)

<RHD>

1 2

4

3

12

11

10

9

8

7

6

13

5

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

AC308739

AH

C-311

Connector: C-311             

<LHD>

Harness side

6

2

7

3

5 4

1

AC308739

AG

C-311

Connector: C-311             

<RHD>

Harness side

6

2

7

3

5 4

1

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-78

INSPECTION PROCEDURE 9: Defogger function does not operate.

CIRCUIT OPERATION
If the defogger does not operate when the defogger 
switch is turned on, the defogger relay system may 
be defective.

TROUBLESHOOTING HINTS

•

Malfunction of the A/C-ECU

•

Malfunction of the defogger relay

•

Damaged the wiring harness or connectors

•

Malfunction of the defogger

DIAGNOSIS

STEP 1. Check the A/C and outside/inside air 
selection damper control motor operation.

Q: Do the A/C and outside/inside air selection damper 

control motor work normally?

YES : 

Go to Step 2.

NO : 

Refer to Inspection procedure 10 
"Malfunction of the A/C-ECU power supply 
system 

P.55B-88

."

DEFOGGER
RELAY

DEFOGGER
SWITCH

DEFOGGER

A/C-ECU

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)

<LHD>

<RHD>