Theory Of Operation
The Ambient Air Temperature (AAT) Sensor signal is a direct input to the Body Control Module (BCM). The BCM transmits the ambient temperature message to the Powertrain Control Module (PCM) over the CAN C bus.
The Ambient Air Temperature (AAT) Sensor signal is a direct input to the Body Control Module (BCM). The BCM transmits the ambient temperature message to the Powertrain Control Module (PCM) over the CAN C bus.