HORN, Horn Wiring Diagram for Nissan Sentra SE 1990, List of elements for Horn Wiring Diagram for Nissan Sentra SE 1990:, Fuse block, Fuse r 10a, Horn, Horn relay (on right inner fender panel), Horn switch, Hot at all times, Nca, , , DEFOGGERS, COOLING FAN, HORN, RADIO, POWER WINDOWS, POWER DOOR LOCKS, STARTING/CHARGING, WIPER/WASHER, ,