Air Mix Door Motor (Driver Side)

AIR MIX DOOR MOTOR (DRIVER SIDE)

Description


COMPONENT DESCRIPTION

Air Mix Door Motor
The air mix door motor (driver side) (1) is attached to the heater & cooling unit assembly. It rotates so that the air mix door is opened or closed to a position set by the unified meter and A/C amp. Motor rotation is then conveyed through a shaft and the air mix door position feedback is then sent to the unified meter and A/C amp. by
PBR built-in air mix door motors.












Component Function Check


1. CONFIRM SYMPTOM BY PERFORMING THE FOLLOWING OPERATIONAL CHECK

1.Turn temperature control dial (driver side) clockwise until 32.0�C (90�F) is displayed.
2.Check for warm air at discharge air outlets.
3.Turn temperature control dial (driver side) counterclockwise until 18.0�C (60�F) is displayed.
4.Check for cool air at discharge air outlets.
Is the inspection result normal?
YES- INSPECTION END
NO- Go to diagnosis procedure. Refer to "Diagnosis Procedure" .


Diagnosis Procedure


1. CHECK INSTALLATION OF AIR MIX DOOR MOTOR (DRIVER SIDE)

Check air mix door motor (driver side) is properly installed. Refer to "Exploded View" Door Motor.
Is it installed normally?
YES- GO TO 2.
NO- Repair or replace air mix door motor.

2. CHECK POWER SUPPLY FOR AIR MIX DOOR MOTOR (DRIVER SIDE)

Check voltage between air mix door motor (driver side) harness connector and ground.





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

3. CHECK SIGNAL FOR AIR MIX DOOR MOTOR (DRIVER SIDE)

Confirm A/C LAN signal between air mix door motor (driver side) harness connector and ground using an oscilloscope.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair harness or connector.

4. CHECK AIR MIX DOOR MOTOR (DRIVER SIDE) GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect air mix door motor (driver side) connector.
3.Check continuity between air mix door motor (driver side) harness connector and ground.





Is the inspection result normal?
YES- Replace air mix door motor (driver side).
NO- Repair harness or connector.