Diagnosis Procedure

INTAKE DOOR MOTOR


Description


COMPONENT DESCRIPTION

Intake Door Motor
The intake door motor (1) is attached to the blower unit. It rotates so that air is drawn from inlets set by the unified meter and A/C amp.





Motor rotation is conveyed to a lever which activates the intake door.






INTAKE DOOR MOTOR


Diagnosis Procedure

1.CHECK INTAKE DOOR CONTROL LINKAGE
Check intake door control linkage is properly installed. Refer to Exploded View.
Is it installed normally?
YES - GO TO 2.
NO - Repair or adjust control linkage.
2.CHECK POWER SUPPLY FOR INTAKE DOOR MOTOR
Check voltage between intake door motor harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair harness or connector.
3.CHECK SIGNAL FOR INTAKE DOOR MOTOR
Confirm A/C LAN signal between intake door motor harness connector and ground using an oscilloscope.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair harness or connector.
4.CHECK INTAKE DOOR MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake door motor connector.
3. Check continuity between intake door motor harness connector and ground.





Is the inspection result normal?
YES - Replace intake door motor.
NO - Repair harness or connector.