Manual Air Conditioning

INTAKE DOOR MOTOR

System Description


SYSTEM DESCRIPTION

Component Parts
- Front air control
- Intake door motor
- Intake sensor
System Operation
The intake door control determines the intake door position based on the position of the recirculation switch.
When the recirculation switch is depressed the intake door motor rotates closing off the fresh air inlet and recirculating the cabin air. If the recirculation switch is depressed again, the intake door motor rotates in the opposite direction, again allowing fresh air into the cabin.






COMPONENT DESCRIPTION

Intake door motor





The intake door motor is attached to the intake unit. It rotates so that air is drawn from inlets set by the front air control. Motor rotation is conveyed to a lever which activates the intake door.


Intake Door Motor Component Function Check

- Intake door does not change.
- Intake door motor does not operate normally.

INSPECTION FLOW


1. CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - REC ()

1.Turn blower control dial to 4.

2.Turn mode dial to vent mode ().
3.Press REC () switch.
4.Press REC () switch again.
5.Listen for intake door position change (you should hear blower sound change slightly).
Is the inspection result normal?
YES- Inspection End.
NO- Go to diagnosis procedure. .


Intake Door Motor Diagnosis Procedure

Regarding Wiring Diagram information, Manual Air Conditioning.

DIAGNOSTIC PROCEDURE FOR INTAKE DOOR MOTOR


1. CHECK INTAKE DOOR MOTOR CIRCUIT VOLTAGE






1.Turn ignition switch OFF.
2.Disconnect intake door motor connector.
3.Turn ignition switch ON.
4.Rotate the temperature control dial counterclockwise.
5.Check voltage between intake door motor harness connector
M58 terminal 6 and ground.
6 - Ground: Battery voltage
Is inspection result normal?
YES- GO TO 3.
NO- GO TO 2.

2. CHECK INTAKE DOOR MOTOR CIRCUIT FOR OPEN






1.Turn ignition switch OFF.
2.Disconnect front air control connector.
3.Check continuity between front air control harness connector
M52 (A) terminal 5 and intake door motor harness connector
M58 (B) terminal 6.
5 - 6: Continuity should exist.
Is inspection result normal?
YES- Replace front air control. Service and Repair.
NO- Repair or replace harness as necessary.

3. CHECK INTAKE DOOR MOTOR CIRCUIT VOLTAGE






1.Rotate the temperature control dial clockwise.
2.Check voltage between intake door motor harness connector
M58 terminal 1 and ground.
1 - Ground:Battery voltage
Is inspection result normal?
YES- Replace intake door motor. Intake Door Motor.
NO- GO TO 4.

4. CHECK INTAKE DOOR MOTOR CIRCUIT FOR OPEN







1.Turn ignition switch OFF.
2.Disconnect front air control connector.
3.Check continuity between front air control harness connector
M52 (A) terminal 4 and intake door motor harness connector
M58 (B) terminal 1.





Is inspection result normal?
YES- Replace front air control. Service and Repair.
NO- Repair or replace harness as necessary.