Intake Door Motor

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.







Component Function Check


1. CONFIRM SYMPTOM BY PERFORMING THE FOLLOWING OPERATIONAL CHECK

1.Press intake switch.
2.REC indicator turns ON.
3.Listen for intake door position change (Slight change of blower sound can be heard.).
4.Press intake switch again.
5.FRE indicator turns ON.
Is the inspection result normal?
YES- END.
NO- Go to diagnosis procedure. Refer to "Diagnosis Procedure" .


Diagnosis Procedure


1. PERFORM SELF-DIAGNOSIS STEP-2

Perform self-diagnosis STEP-2. Refer to "Diagnosis Description" Diagnosis Description, see Nos. 1 to 2.
Does code No. 20 appear on the display?
YES- GO TO 2.
NO- Go to appropriate malfunctioning sensor circuit. Refer to "Diagnosis Description" Diagnosis Description, see
No. 11.

2. PERFORM SELF-DIAGNOSIS STEP-4

Perform self-diagnosis STEP-4. Refer to "Diagnosis Description" Diagnosis Description, see Nos. 1 to 5.
Is it operated normally?
YES- END.
NO- GO TO 3.

3. CHECK INTAKE DOOR CONTROL LINKAGE

Check intake door control linkage.
Is it installed normally?
YES- GO TO 4.
NO- Repair or adjust control linkage.

4. 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 5.
NO- Repair harness or connector.

5. 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 6.
NO- Repair harness or connector.

6. 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.