DeVille V8-4.6L VIN Y (1998)
Cabin Temperature Sensor / Switch: Description and Operation
The inside air temperature sensor is located in the IP to the left of center. To provide interior air temperature sensing, a small amount of air is drawn into
the sensor housing and passed over the thermistor. The air movement is accomplished by using an aspirator mounted on the top of the HVAC module.
Airflow from the HVAC module creates a slight vacuum at one end of the aspirator which draws inside air through the sensor housing and over the
thermistor.