Mitsubishi Outlander (2003+). Manual - part 564

 

  Index      Mitsubishi     Mitsubishi Outlander - service repair manual 2003 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  562  563  564  565   ..

 

 

Mitsubishi Outlander (2003+). Manual - part 564

 

 

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-71

STEP 4. Connector check: C-27 A/C-ECU 
connector and C-123 photo sensor connector.

Q:  Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair or replace the connector.

STEP 5. Check the wiring harness between C-123 
photo sensor connector (terminal 1, 2) and C-27 
A/C-ECU connector (terminal 19, 9).

Check the photo sensor signal lines for open or 
short circuit.

Q: Is the check result normal?

YES : 

Replace the Photo sensor.

NO : 

Repair the wiring harness.

AC308718

Connector: C-27

AU

C-27(B)

<LHD>

8

2

10 9

1

5

3

4

6

7

20191817161514131211

Harness side

AC308735

Connector: C-27

BB

C-27(B)

Harness side

<RHD>

8

2

10 9

1

5

3

4

6

7

20191817161514131211

AC308716

Connector: C-123

AZ

C-123

Harness side

<LHD>

1

2

AC308769

BE

C-123

Connector: C-123             

<RHD>

1

2

Harness side

AC308718

Connector: C-27

AU

C-27(B)

<LHD>

8

2

10 9

1

5

3

4

6

7

20191817161514131211

Harness side

AC308735

Connector: C-27

BB

C-27(B)

Harness side

<RHD>

8

2

10 9

1

5

3

4

6

7

20191817161514131211

AC308716

Connector: C-123

AZ

C-123

Harness side

<LHD>

1

2

AC308769

BE

C-123

Connector: C-123             

<RHD>

1

2

Harness side

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-72

INSPECTION PROCEDURE 7: The A/C indicator flashes.

CIRCUIT OPERATION
If the A/C indicator flashes then the possible causes 
may be due to a defective A/C pressure system or 
insufficient refrigerant gas.

TROUBLESHOOTING HINTS

Malfunction of the A/C pressure sensor

Malfunction of the outside thermo sensor

Malfunction of the A/C-ECU

DIAGNOSIS

STEP 1. Check the A/C pressure sensor 
operation.

 Refer to GROUP 55A, On vehicle service 

 A/C 

pressure sensor chec

P.55A-51

.

Q: Is the A/C pressure sensor operating properly?

YES : 

Go to Step 2.

NO : 

Replace the A/C pressure sensor.

STEP 2. Check the outside thermo sensor.

Refer to 

P.55B-105

.

Q: Is the outside thermo sensor in good condition?

YES : 

Go to Step 3.

NO : 

Replace the air thermo sensor.

STEP 3. Check the refrigerant level.

 Refer to GROUP 55A, On vehicle service 

 sight 

glass refrigerant level test 

P.55A-51

.

Q: Is the refrigerant level correct?

YES : 

Replace the automatic air conditioner 

control panel (A/C-ECU).

NO : 

Correct the refrigerant level. (Refer to 
GROUP 55A, On-vehicle Service

P.55A-56

). 

A/C-ECU

A/C PRESSURE 
SENSOR

OUTSIDE
THERMO
SENSOR

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   

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-73

INSPECTION PROCEDURE 8: The inside/outside air changeover is impossible.

COMMENTS ON TROUBLE SYMPTOM
When inside air cannot be changed to outside air 
vice versa even if its changeover switch is on, the 
outside/inside air selection damper control motor 
system may be defective.

Possible causes

Malfunction of the outside/inside air selection 
damper control motor

Damaged the wiring harness or connectors

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

DIAGNOSIS

Step 1. MUT-II/III actuator test

Carry out the actuator test.

Item 13, 14: outside/inside air selection damper 
control motor

Q: Does the blower motor work normally?

YES : 

Replace the automatic air conditioner 

control panel (A/C-ECU)

NO : 

Go to Step 2.

Step 2. Measure the voltage at C-311 
outside/inside air selection damper control motor 
connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

A/C-ECU

IGNITION 
SWITCH (IG2)

MOTOR DRIVE 
CIRCUIT

OUTSIDE/INSIDE AIR 
SELECTION DAMPER 
CONTROL MOTOR

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   

Outside/Inside Air Selection Damper Control Motor Circuit

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-74

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

(3) Measure the voltage between terminal 7 and 

body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Go to Step 3.

Step 3. Connector check: C-311 outside/inside air 
selection damper control motor connector

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the connector.

AC301541

6

2

7

3

5 4

1

BT

Connector C-311
(Harness side)

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

 

 

 

 

 

 

 

Content   ..  562  563  564  565   ..