Ambient Temperature Sensor: Description
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
The ambient air temperature is monitored by the PCM and displayed by the CMTC. The PCM receives a hardwire input from the ambient temperature sensor (ATS). The ATS is located on the inside of the front bumper beam.
The ATS cannot be adjusted or repaired and, if faulty or damaged, it must be replaced.