Intake Air Temperature Sensor

The Intake Air Temperature (IAT) sensor is located in the intake air duct. See Fig 1 or Fig 2 . The IAT sensor is a Negative Temperature Coefficient (NTC) sensor that provides information to the PCM regarding the temperature of the air entering the intake manifold.

Fig 1: Identifying IAT Sensor (2.7L)

Courtesy of DAIMLERCHRYSLER CORPORATION

Fig 2: Locating IAT Sensor (3.5L)

Courtesy of DAIMLERCHRYSLER CORPORATION