Car Wiring Diagrams for Horn circuit for GMC Hummer EV I (2021-2024)

BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BLK WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE ENGINE WIRING HARNESS JUNCTION BLOCK GRN WIRE GRN/WHT WIRE GRY WIRE HORN HORN RELAY HORN RLY CTRL HORN SW SIG HOT AT ALL TIMES STEERING WHEEL AIR BAG COIL STEERING WHEEL HORN CONTACT WHT WIRE