Diagnosis Procedure

AIR MIX DOOR MOTOR


WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL SYSTEM WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL SYSTEM : Description


COMPONENT DESCRIPTION

Air Mix Door Motor





The air mix door motor (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.

White arrow : Vehicle front




AIR MIX DOOR MOTOR


WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL SYSTEM : Diagnosis Procedure

1.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis function. Without Plasmacluster System.
Is the inspection result normal?
YES - GO TO 5.
NO - GO TO 2.
2.CHECK POWER SUPPLY FOR AIR MIX DOOR MOTOR
Check voltage between air mix door motor 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
Confirm A/C LAN signal between air mix 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 AIR MIX DOOR MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect air mix door motor connector.
3. Check continuity between air mix door motor harness connector and ground.





Is the inspection result normal?
YES - Replace air mix door motor.
NO - Repair harness or connector.
5.CHECK INSTALLATION OF AIR MIX DOOR MOTOR
Check air mix door motor is properly installed. Exploded View.
Is it installed normally?
YES - INSPECTION END
NO - Repair or replace air mix door motor.