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AC-52 HVAC SYSTEM (HEATER, VENTILATOR AND A/C) GENERAL DIAGNOSTICS 25.General Diagnostics A: INSPECTION Symptom Repair order Blower motor Doesn't move. Fuse Blower motor relay Blower motor Blower motor resistor Blower switch Wire harness Strange noise. Blower motor Compressor Doesn't move. Refrigerant Fuse Air conditioning relay Magnet clutch Compressor Pressure switch A/C switch Blower switch Wire harness Strange noise V-Belt Magnet clutch Compressor Cold air not emitted. Refrigerant V-Belt Magnet clutch Compressor Pressure switch A/C switch Blower switch Wire harness Heater duct Heater vent duct Warm air not emitted. Engine coolant Blower switch Heater core Temperature of air from vents does not change. Engine coolant Mode actuator Wire harness Unable to switch blow vents. Mode actuator Air flow switch Wire harness Unable to switch suction vents. Air inlet select switch FRESH/RECIRC actuator Wire harness |