Pinpoint Test A: The Active Park Assist Switch Does Not Respond When Pressed And The Instrument Cluster (IC) Does Not Display The Active Park Assist Message In The Instrument Cluster (IC) Message Center: Notes
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Refer to appropriate SYSTEM WIRING DIAGRAMS article, Parking Aid for schematic and connector information.