HORN, Horn Wiring Diagram for Jaguar XJ-S 1990, List of elements for Horn Wiring Diagram for Jaguar XJ-S 1990:, 15a, Fuse 3, Fuse 6, Horn (center front of engine), Horn relay (left front of engine compartment), Horn switch, Hot at all times, Hot in run or start, Nca, Underhood fuse box: black (left side of engine compartment), Underhood fuse box: white (left side of engine compartment), , , DEFOGGERS, COOLING FAN, POWER SEATS, POWER ANTENNA, HORN, POWER WINDOWS, POWER MIRRORS, POWER DOOR LOCKS, STARTING/CHARGING, RADIO, WIPER/WASHER, ,