Intake Door Motor

INTAKE DOOR MOTOR

Diagnosis Procedure


1. CHECK INTAKE DOOR MOTOR POWER SUPPLY

1.Turn ignition switch ON.
2.Check voltage between intake door motor harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- GO TO 5.

2. CHECK INTAKE DOOR MOTOR GROUND CIRCUIT FOR OPEN

1.Turn ignition switch OFF.
2.Disconnect intake door motor and front air control connector.
3.Check continuity between intake door motor harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair harness or connector.

3. CHECK INTAKE DOOR MOTOR LIN SIGNAL

1.Connect intake door motor and front air control connector.
2.Turn ignition switch ON.
3.Confirm output waveform between intake door motor harness connector and ground using oscilloscope.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 6.

4. CHECK INSTALLATION OF INTAKE DOOR MOTOR

Check intake door motor is properly installed. Refer to "Exploded View" Exploded View.
Is the inspection result normal?
YES- Replace intake door motor. Refer to "INTAKE DOOR MOTOR : Removal and Installation" Intake Door Motor.
NO- Repair or replace malfunctioning part.

5. CHECK INTAKE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN

1.Turn ignition switch OFF.
2.Disconnect intake door motor and front air control connector.
3.Check continuity between intake door motor harness connector and front air control connector.





Is the inspection result normal?
YES- Replace front air control. Refer to "Removal and Installation" Manual Air Conditioning.
NO- Repair harness or connector.

6. CHECK INTAKE DOOR MOTOR LIN SIGNAL CIRCUIT FOR OPEN

1.Turn ignition switch OFF.
2.Disconnect intake door motor and front air control.
3.Check continuity between intake door motor harness connector and front air control harness connector.





Is the inspection result normal?
YES- Replace front air control. Refer to "Removal and Installation" Manual Air Conditioning.
NO- Repair harness or connector.