Mitsubishi Outlander (2003+). Manual — part 535

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-35

STEP 19. Connector check: C-12 blower motor
connector and C-08 blower switch connector

Q: Is the check result normal?

YES :

Go to Step 20.

NO :

Repair the connector.

STEP 20. Check the wiring harness between C-12
blower motor connector terminal No.1 and C-08
blower switch connector terminal No.6.

•

Check the blower motor 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 21. Check the blower fan and motor
operation.
Refer to

P.55A-67

.

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 :

Replace the blower motor.

AC301398

Connectors: C-08, C-12

C-12

AL

C-12

Harness side

2
5

6

3

4

1

C-08

C-08

2

1

AC301398

Connectors: C-08, C-12

C-12

AL

C-12

Harness side

2
5

6

3

4

1

C-08

C-08

2

1

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-36

INSPECTION PROCEDURE 5: Blower Air Amount cannot be Changed.

COMMENTS ON TROUBLE SYMPTOM
If the blower air amount can not be changed when
the blower switch is operated, the blower switch may
be defective.

TROUBLESHOOTING HINTS

•

Malfunction of the resistor

•

Damaged the wiring harness or connectors

•

Malfunction of the blower switch

DIAGNOSIS

STEP 1. Check that the blower motor operates
when the blower switch is moved to the "4 (HI)"
position.
(1) Turn the ignition switch to the "ON" position.
(2) Turn the blower switch to the "4 (HI) " position.

Q: Does the blower motor operate when the blower

switch is moved to the "4 (HI)" position?
YES :

Go to STEP 2.

NO :

Refer to Inspection procedure 4 "Blower fan
and motor do not turn

P.55A-29

."

STEP 2. Check the blower switch continuity.
Refer to

P.55A-61

.

Q: Is the blower switch continuity in good condition?

YES :

Go to Step 3.

NO :

Replace the blower switch.

STEP 3. Check the resistor resistance value.
Refer to

P.55A-67

.

Q: Is the measured value at the standard value?

YES :

Go to Step 4.

NO :

Replace the resistor.

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

BLOWER
RELAY

BLOWER
SWITCH

BLOWER
MOTOR

RESISTOR

Blower Switch and Resistor Circuit

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-37

STEP 4. Connector check: C-08 blower switch
connector and C-11 resistor connector

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Repair the connector.

STEP 5. Check the wiring harness between C-08
blower switch connector (terminals 1, 4 and 5)
and C-11 resistor connector (terminals 4, 1 and
3).

•

Check the blower switch output line for open
circuit.

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Repair the wiring harness.

AC301398

Connectors: C-08, C-11

C-08

C-08

C-11

AM

1
3

2

4

C-11

Harness side

2
5

6

3

4

1

AC301398

Connectors: C-08, C-11

C-08

C-08

C-11

AM

1
3

2

4

C-11

Harness side

2
5

6

3

4

1

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-38

STEP 6. Connector check: C-11 resistor
connector and C-12 blower motor connector

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Repair the connector.

STEP 7. Check the wiring harness between C-12
blower motor connector (terminal 1) and C-11
resistor connector (terminal 2).

•

Check the blower motor power supply line for
open circuit.

Q: Is the check result normal?

YES :

No action to be taken.

NO :

Repair the wiring harness.

AC301398

Connectors: C-11, C-12

C-12

C-11

AN

1
3

2

4

C-11

Harness side

C-12

2

1

AC301398

Connectors: C-11, C-12

C-12

C-11

AN

1
3

2

4

C-11

Harness side

C-12

2

1