Ignition Switch - Push Button Start (with Push Button Start)
WARNING: This page is about a different car, the 2018 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The ignition switch - push button start (engine start/stop button) is a momentary contact switch that is hardwired to the BCM and the PCM. The ignition switch - push button start is used to obtain the OFF, ON or START ignition modes. For more information, Refer to: Steering Wheel And Column Electrical Components - System Operation And Component Description .