Freestar V6-4.2L VIN 2 (2004)
Cabin Temperature Sensor / Switch: Description and Operation
ELECTRONIC AUTOMATIC TEMPERATURE CONTROL
In-Vehicle Temperature Sensor
The in-vehicle temperature sensor operates in the following manner:
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A thermistor in the in-vehicle temperature sensor measures air temperature inside the passenger compartment.
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An aspirator hose and elbow is connected between the heater core and evaporator core housing and the in-vehicle temperature sensor.
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The aspirator hose and elbow takes air from the heater core and evaporator core housing air stream to create a suction in the in-vehicle temperature
sensor.
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The suction draws in-vehicle air into the in-vehicle temperature sensor and across the thermistor.
