Mitsubishi Outlander (2003+). Manual - part 550

 

  Index      Mitsubishi     Mitsubishi Outlander - service repair manual 2003 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  548  549  550  551   ..

 

 

Mitsubishi Outlander (2003+). Manual - part 550

 

 

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-15

Step 3. Check the wiring harness between C-27 
A/C-ECU connector (terminals 8 and 20) and 
C-316 air thermo sensor connector (terminals 1 
and 2).

NOTE: Prior to the wiring harness inspection, check 
intermediate connector C-36 and heater water 
temperature sensor connector C-314, and repair if 
necessary.

Check the sensor signal line and earth line 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.

AC301398

Connectors: C-27, C-36 <LHD>

C-27(B)

C-27

C-36

BE

C-36

Harness side

8

2

10 9

1

5

3

4

6

7

20191817161514131211

1 2

4

3

12

11

10

9

8

7

6

13

5

AC308736

Connectors: C-27, C-36 <RHD>

C-27(B)

C-27

C-36

AK

C-36

Harness side

8

2

10 9

1

5

3

4

6

7

20191817161514131211

1 2

4

3

12

11

10

9

8

7

6

13

5

AC309436

Connectors: C-314, C-316 <LHD>

Harness side

2

1

C-314

C-316

2

1

C-314

C-316

AB

Harness side

AC308740

Connectors: C-314, C-316 <RHD>

Harness side

C-314

C-316

2

1

C-314

C-316

AB

Harness side

2

1

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-16

Diagnosis code 31: Air mixing damper control motor potentiometer system

COMMENTS ON TROUBLE SYMPTOM
This code is set when the air mixing damper control 
motor potentiometer does not send any signal to the 
A/C-ECU due to short or open circuit.

Possible causes

Malfunction of the air mixing damper control 
motor and potentiometer

Damaged the wiring harness or connectors

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

DIAGNOSIS

Step 1. Check the air mixing damper control 
motor and potentiometer.

Refer to 

P.55B-102

.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Replace the air mixing damper control 
motor and potentiometer.

MODE SELECTION DAMPER 
CONTROL MOTOR AND 
POTENTIOMETER

AIR MIXING DAMPER 
CONTROL MOTOR AND 
POTENTIOMETER

HEATER WATER 
TEMPERATURE 
SENSOR

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   

Air Mixing Damper Control Motor Potentiometer Circuit

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-17

Step 2. Connector check: C-27 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-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

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-18

Step 3. Check the wiring harness between C-27 
A/C-ECU connector (terminals 10, 5 and 20) and 
C-313 air mixing damper control motor and 
potentiometer connector (terminals 2, 5 and 6).

NOTE: Prior to the wiring harness inspection, check 
intermediate connector C-36, mode selection 
damper control motor and potentiometer connector 
C-315 and heater water temperature sensor 
connector C-314, and repair if necessary.

Check the potentiometer power supply, earth and 
signal line for open or short circuit.

Q: Is the check result normal?

AC301398

Connectors: C-27, C-36 <LHD>

C-27(B)

C-27

C-36

BE

C-36

Harness side

8

2

10 9

1

5

3

4

6

7

20191817161514131211

1 2

4

3

12

11

10

9

8

7

6

13

5

AC308736

Connectors: C-27, C-36 <RHD>

C-27(B)

C-27

C-36

AK

C-36

Harness side

8

2

10 9

1

5

3

4

6

7

20191817161514131211

1 2

4

3

12

11

10

9

8

7

6

13

5

AC309436

Connectors: C-313, C-314, C-315 <LHD>

Harness side

C-314

C-315

2

1

C-314

C-313

AC

C-315

C-313

2
6 5

1
3

4

2
6 5

1
3

4

Harness side

Harness side

AC308740

Connectors: C-313, C-314, C-315 <RHD>

Harness side

C-314

C-315

2

1

C-314

C-313

AC

C-315

C-313

2
6 5

1
3

4

2
6 5

1
3

4

Harness side

Harness side

 

 

 

 

 

 

 

Content   ..  548  549  550  551   ..