Diagnosis Procedure

AIR MIX DOOR MOTOR

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


1. PERFORM SELF-DIAGNOSIS

Perform self-diagnosis function. Refer to "WITHOUT PLASMACLUSTER SYSTEM : Diagnosis Description" 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. Refer to "Exploded View" Door Motor.
Is it installed normally?
YES- INSPECTION END
NO- Repair or replace air mix door motor.