Ambient Air Temperature Sensor

WARNING: This page is about a different car, the 2021 Jaguar I-Pace, 2020 Jaguar I-Pace, and 2019 Jaguar I-Pace. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

The Ambient Air Temperature (AAT) sensor is installed in the left door mirror. The AAT sensor is a Negative Temperature Coefficient (NTC) resistor that is hardwired to the Powertrain Control Module (PCM), which broadcasts the AAT to other systems. The HVAC receives the AAT through the High Speed (HS) Controller Area Network (CAN) power mode zero systems bus.

NOTE: Disconnect the startup battery before removing or installing the left door mirror. Failure to do this results in the Ambient Air Temperature (AAT) sensor providing an incorrect temperature of -40°C (-40°F). This prevents the Air Conditioning (A/C) system from functioning until the vehicle is driven for 10 to 20 minutes.

For additional information, Refer to: VOLTAGE CONTROL .