Inside Air Temperature Sensor

The inside air temperature sensor is a temperature sensitive resistor. As the temperature increases, resistance decreases. As the temperature decreases, resistance increases.

A hose is connected to the inside air temperature sensor. This hose connected to an aspirator continually draws passenger compartment air over the sensor, increasing the accuracy of the temperature reading.

The Instrument Panel Module (IPM) monitors the inside air temperature signal. The IPM uses this information in order to determine command signals.