Module, Power Inverter: Operation: Operation
WARNING: This page is about a different car, the 2015 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
The AC power outlet receives 12 volts from the Power distribution Center (PDC) and passes it as an enable signal to the inverter module. The inverter module also receives 12 volts via the PDC and inverts this to a 115 volt AC output (220 volt for BUX models). The enable signal received from the power outlet enables the inverter to convert the received voltage and pass it to the power outlet to power external devices.