Neon L4-2.0L VIN C (1998)
Evaporator Temperature Sensor/Clutch Cycling Switch: Description and Operation
SYSTEM OPERATION
The evaporator probe can be replaced without having to remove the unit housing from the vehicle.
The evaporator probe is located in the unit housing and placed in the evaporator fins. The probe prevents evaporator freeze-up. This is done by
cycling the compressor clutch OFF when evaporator temperature drops below freeze point. It cycles ON when the evaporator temperature rises
above freeze point. The evaporator probe uses a thermistor probe in a capillary tube. The tube is inserted between the evaporator fins in the
heater-A/C unit housing.
