Theory Of Operation
WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.
When a device is plugged into the A/C Power Port Outlet a signal is sent to the Body Control Module (BCM) to enable the Power Inverter Module. The BCM then sends a signal to enable the Power Inverter Module. Once the Power Inverter Module is activated, it sends the A/C voltage to the A/C Power Port Outlet.