AAT Sensor
WARNING: This page is about a different car, the 2014 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The AAT sensor signal is hard wired to the PCM and is sent over the vehicle communication network. The AAT sensor is located in front of the radiator to the right of the hood latch. For information regarding the external air temperature display, see CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS .