Mitsubishi Outlander (2003+). Manual - part 537

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-43

STEP 8. Connector check: C-206 defogger relay 
connector

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Repair the connector.

STEP 9. Check the wiring harness between C-206 
defogger relay connector terminal No.1 and 
ignition switch (IG2).

NOTE: Prior to the wiring harness inspection, check 
junction block connector C-203, and repair if neces-
sary.

•

Check the defogger relay 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.

STEP 10. Connector check: C-206 defogger relay 
connector and C-06 A/C-ECU connector.

Q: Is the check result normal?

YES : 

Go to Step 11.

NO : 

Repair the connector.

AC210474

Connector: C-206

AK

Junction block (Front view)

3

4

5

1

2

Junction block side

AC210475

Connectors: C-203, C-206

AW

Junction block (Front view)

C-206

C-203

Harness side

C-203

4

6 5

3

2

1

3

4

5

1

2

Junction block side

C-206

AC301397

Connector: C-06

AN

9

1

15

7

4

12 1110

2

3

13

5

14

6

16

8

C-06(B)

Harness side

AC210474

Connector: C-206

AK

Junction block (Front view)

3

4

5

1

2

Junction block side

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-44

STEP 11. Check the wiring harness between 
C-206 defogger relay connector terminal No.3 
and C-06 A/C-ECU connector terminal No.1.

NOTE: Prior to the wiring harness inspection, check 
junction block connector C-205, and repair if neces-
sary.

•

Check the defogger relay earth line for open or 
short circuit.

Q: Is the check result normal?

YES : 

Go to Step 12.

NO : 

Repair the wiring harness.

STEP 12. Connector check: C-206 defogger relay 
connector and F-04 defogger connector

Q: Is the check result normal?

YES : 

Go to Step 13.

NO : 

Repair the connector.

AC301397

Connector: C-06

AN

9

1

15

7

4

12 1110

2

3

13

5

14

6

16

8

C-06(B)

Harness side

AC210475

Connectors: C-205, C-206

AX

Junction Block (Front view)

C-206

C-205

Harness side

C-205

3

4

5

1

2

Junction block side

C-206

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

AC210474

Connector: C-206

AK

Junction block (Front view)

3

4

5

1

2

Junction block side

AC301658

Harness side

Connector: F-04

AB

F-04(B)

1

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-45

STEP 13. Check the wiring harness between 
C-206 defogger relay connector terminal No.4 
and F-04 defogger connector terminal No.1.

NOTE: Prior to the wiring harness inspection, check 
junction block connector C-209, and repair if 
necessary.

•

Check the defogger relay output line for open 
circuit.

Q: Is the check result normal?

YES : 

Replace the manual air conditioner control 

panel (A/C-ECU).

NO : 

Repair the wiring harness.

STEP 14. Measure the resistance at defogger 
connector F-01.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Measure the resistance value between terminal 1 

and earth.

OK: 2 ohm or less

Q: Is the check result normal?

YES : 

 Go to Step 17.

NO : 

 Go to Step 15.

STEP 15. Connector check: F-01 defogger 
connector

Q: Is the check result normal?

YES : 

Go to Step 16.

NO : 

Repair the connector.

AC210475

Connectors: C-206, C-209

AY

Junction block (Front view)

C-206

Harness side

C-206

C-209

7

15

5

6

1413

2

9

12

4 3

10

11

1

8

C-209

Junction block side

3

4

5

1

2

AC301658

Harness side

Connector: F-04

AB

F-04(B)

1

AC301658

Harness side

Connector: F-01

AC

1

AC301541CO

Connector F-01
(Harness side)

1

AC301658

Harness side

Connector: F-01

AC

1

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-46

STEP 16. Check the wiring harness between F-01 
defogger connector terminal No.1 and earth.

•

Check the defogger earth line for open circuit.

Q: Is the check result normal?

YES : 

Check that the defogger system works 

normally.

NO : 

Repair the wiring harness.

STEP 17. Check the defogger.
 Refer to GROUP 54A, Rear window defogger 

P.54A-105

.

Q: Does the defogger work normally? 

YES : 

Replace the manual air conditioner control 

panel (A/C-ECU).

NO : 

Repair the defogger.

INSPECTION PROCEDURE 8: Defogger Timer Function does not Operate.

COMMENTS ON TROUBLE SYMPTOM
Turn ON the defogger switch. If the defogger does 
not shut off after roughly 11 minutes then the 
defogger timer is malfunctioning.

TROUBLESHOOTING HINTS

•

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

 Check the performance of the defogger timer 
operations.
(1) Turn the ignition switch to the "ON" position.
(2) Turn the defogger switch to the "ON" position 

(operate for approx. 11 minutes)

Q: Does the defogger timer function work normally?

YES : 

Intermittent malfunction

NO : 

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

AC301658

Harness side

Connector: F-01

AC

1