C3-4 clutch solenoid or its wiring failed open or shorted to ground
Aux 5th remote valve control switch (Extend) is failed in the Armrest Controller
C3-4 clutch solenoid or its wiring failed open or shorted to ground
If Inadequate air flow is problematic, so clogged air filters, evaporator core air flow restricted, faulty blower fan motors, defective blower switch or faulty wiring or loose connections.