Automatic Air Conditioning

MODE DOOR MOTOR

Description


COMPONENT DESCRIPTION

Mode Door Motor





The mode door motor (1) is attached to the heater & cooling unit assembly. It rotates so that air is discharged from the outlet set by the unified meter and A/C amp. Motor rotation is conveyed to a link which activates the mode door.







Component Function Check


1. CONFIRM SYMPTOM BY PERFORMING THE FOLLOWING OPERATIONAL CHECK

1.Press MODE switch and DEF switch.
2.Each position indicator should change shape.
3.Confirm that discharge air comes out according to the air distribution table. Air Distribution.
NOTE:
Confirm that the compressor clutch is engaged (Sound or visual inspection) and intake door position is at FRE
when D/F or DEF is selected.
Is the inspection result normal?
YES- INSPECTION END
NO- Go to diagnosis procedure. .


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 MODE DOOR MOTOR

Check voltage between mode door motor harness connector and ground.





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

3. CHECK SIGNAL FOR MODE DOOR MOTOR

Confirm A/C LAN signal between mode 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 MODE DOOR MOTOR GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect mode door motor connector.
3.Check continuity between mode door motor harness connector and ground.





Is the inspection result normal?
YES- Replace mode door motor.
NO- Repair harness or connector.

5. CHECK MODE DOOR CONTROL LINKAGE

Check mode door control linkage is properly installed. Door Motor.
Is it installed normally?
YES- INSPECTION END
NO- Repair or adjust control linkage.