Ignition Switch - Push Button Start
WARNING: This page is about a different car, the 2014 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The ignition switch - push button start 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. Refer to: STEERING WHEEL AND COLUMN ELECTRICAL COMPONENTS - OVERVIEW .