Mode Door

TROUBLE DIAGNOSIS


Mode Door

SYMPTOM: Air outlet does not change.

INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - DISCHARGE AIR
1. Rotate the mode door control dial to each position.
2. Confirm that discharge air comes out according to the air distribution table. Discharge Air Flow.





NOTE:
Confirm that the compressor clutch (with A/C) is engaged (visual inspection) when DEF ( ) or D/F ( ) is selected.
Can a symptom be duplicated?
YES - GO TO 3.
NO - GO TO 2.
2.PERFORM COMPLETE OPERATIONAL CHECK
Perform a complete operational check and check for any symptoms. Operational Check.
Can a symptom be duplicated?
YES - How To Perform Trouble Diagnosis For Quick And Accurate Repair.
NO - System OK.
3.CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
- GO TO 4.
4.CHECK MODE DOOR CONTROL CABLE
Check and verify mode door mechanism for smooth operation in each mode.
OK or NG
OK - If the symptom still exists, perform a complete operational check and check for other symptoms. Operational Check. If other symptoms exist, How To Perform Trouble Diagnosis For Quick And Accurate Repair .
NG - Repair or adjust mode door control cable. Mode Door Cable Adjustment.