Wiring Diagrams: E150
WARNING: This page is about a different car, the 2002 Ford RV Cutaway, 2002 Ford Econoline, 2002 Ford E450 Super Duty, and 2002 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
For wiring diagrams, see COMPUTER DATA LINES, GROUND DISTRIBUTION and/or POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.