Sensor, Air Temperature, Intake: Description
WARNING: This page is about a different car, the 2017 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
The 2-wire Intake Manifold Air Temperature (IAT) sensor is installed in the air inlet tube with the sensor element extending into the air stream.
The IAT sensor is a two-wire Negative Thermal Coefficient (NTC) sensor. Meaning, as inlet air temperatures increase, resistance (voltage) in the sensor decreases. As temperature decreases, resistance (voltage) in the sensor increases.