Pinpoint Test AY: The Chime Sounds When The Driver Door Is Ajar (No Key In Ignition And Headlamps Off): Notes
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
Refer to SYSTEM WIRING DIAGRAMS article, Instrument Cluster for schematic and connector information.