Component Description: GSM
WARNING: This page is about a different car, the 2023 Ford Mustang Mach-E. However, it is still accessible from the selected car via links, so may be relevant.
The GSM rotary dial has hall effect sensors that are used as inputs to indicate that the dial has been rotated. When park is selected above 5 mph neutral is provided along with a message in the IPC. The Brake Transmission Shift Interlock (BTSI) CAN signal is used for normal function to shift from P.