Mitsubishi Outlander (2003+). Manual - part 552

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-23

Step 2. Connector check: C-26 A/C-ECU 
connector and C-313 air mixing damper control 
motor and potentiometer connector

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair the connector.

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

AC309435

Connector: C-313 <LHD>

AD

Harness side

2
6 5

1
3

4

AC308739

Connector: C-313 <RHD>

AD

Harness side

2
6 5

1
3

4

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-24

Step 3. Check the wiring harness between C-26 
A/C-ECU connector (terminals 22 and 25) and 
C-313 air mixing damper control motor and 
potentiometer connector (terminals 3 and 1).

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 : 

Malfunction of the automatic air conditioner 

control panel (A/C-ECU)

NO : 

Repair the wiring harness.

AC301398

Connectors: C-26, C-36 <LHD>

C-26

C-36

BI

C-36

Harness side

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

C-26(B)

AC308736

Connectors: C-26, C-36 <RHD>

C-26

C-36

AL

C-36

Harness side

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

C-26(B)

AC309435

Connector: C-313 <LHD>

AD

Harness side

2
6 5

1
3

4

AC308739

Connector: C-313 <RHD>

AD

Harness side

2
6 5

1
3

4

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-25

Diagnosis code 42: Mode selection damper control motor and potentiometer activating system

COMMENTS ON TROUBLE SYMPTOM
This code is set when the mode selection damper 
cannot be rotated to the preset opening angle.

Possible causes

•

Malfunction of the mode selection damper control 
motor and potentiometer

•

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

•

Damaged the wiring harness or connectors

DIAGNOSIS

Step 1. Check the mode selection damper control 
motor and potentiometer.

Refer to 

P.55B-102

.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Replace the mode selection damper control 
motor and potentiometer.

MOTOR
DRIVE CIRCUIT

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   

MODE SELECTION DAMPER CONTROL
MOTOR AND POTENTIOMETER

Mode Selection Damper Control Motor And Potentiometer Circuit

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-26

Step 2. Connector check: C-26 A/C-ECU 
connector and C-315 mode selection damper 
control motor and potentiometer connector

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair the connector.

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

AC309435

Connector: C-315 <LHD>

AE

Harness side

2
6 5

1
3

4

AC308739

Connector: C-315 <RHD>

AF

Harness side

2
6 5

1
3

4