HORN, Horn Wiring Diagram for Ford Econoline E150 1990, List of elements for Horn Wiring Diagram for Ford Econoline E150 1990:, , Cruise control system, Fuse 16 15a, Fuse panel, High pitch horn (on left radiator support), Horn relay (behind left side of i/p), Horn switch, Hot at all times, Low pitch horn (inside left front fender), Slip ring, Slip ring, Speed control switch assembly, W/ speed control, W/o speed control, , , POWER DOOR LOCKS, HORN, RADIO, POWER WINDOWS, STARTING/CHARGING, WIPER/WASHER, ,