Pinpoint Test F: DTCs B2844 and U2472 - Ignition Fault and Unexpected Ignition State: Notes
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Refer to appropriate SYSTEM WIRING DIAGRAMS article, Power Distribution/SJB for schematic and connector information.