Mitsubishi Outlander (2003+). Manual — part 568

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-87

STEP 15. Connector check: F-01 defogger
connector

Q: Is the check result normal?

YES :

Go to Step 16.

NO :

Repair the connector.

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

•

Check the defogger earth line for open or short
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 or replace the wiring harness.

STEP 17. Check the defogger.

Refer to GROUP 54A, Rear Window Defogger
Switch Inspection

P.54A-105

.

Q: Does the defogger work normally?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00, How to
Cope with Intermittent Malfunction

P.00-6

).

NO :

Repair the defogger.

AC301658

Harness side

Connector: F-01

AC

1

AC301658

Harness side

Connector: F-01

AC

1

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-88

INSPECTION PROCEDURE 10: Malfunction of the A/C-ECU power supply system.

CIRCUIT OPERATION
The A/C-ECU power system may be defective if the
air conditioner, defogger, and outside/inside air
selection damper motor all do not operate normally.

TROUBLESHOOTING HINTS

•

Damaged the wiring harness or connectors

•

Malfunction of the A/C-ECU

IGNITION
SWITCH (IG2)

BATTERY
BACK-UP

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

BATTERY

RELAY
BOX

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-89

DIAGNOSIS

STEP 1. Measure the voltage at A/C-ECU
connector C-26.

(1) Disconnect the connector, and measure at the

wiring harness side.

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

(3) Measure the voltage between terminal 28 and

body earth.

OK: System voltage

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Go to Step 2.

STEP 2. Connector check: C-26 A/C-ECU
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

AC301541CK

Connector C-26
(Harness side)

29

21

35

27

24

323130

22

23

33

25

34

26

36

28

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

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-90

STEP 3. Check the wiring harness between C-26
A/C-ECU connector terminal No.28 and the
ignition switch (IG2).

NOTE:

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

•

Check the A/C-ECU power supply line for open or
short 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.

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

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