Without Left and Right Ventilation Temperature Separately Control System

AIR MIX DOOR MOTOR


WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CON- TROL SYSTEM : Diagnosis Procedure

1.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis function. Refer to Diagnosis Description
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. Check air mix door motor is properly installed. Refer to Mode Door Motor

Is it installed normally?
YES - INSPECTION END
NO - Repair or replace air mix door motor.