Toyota Sienna IV (2020-2024) Horn circuit

BLK WIRE ENGINE ROOM R/B 1 GRN WIRE HIGH PITCHED HORN ASSEMBLY HORN HORN FUSE HORN RELAY HORN SWITCH HOT AT ALL TIMES LOW PITCHED HORN ASSEMBLY LT GRN WIRE MAIN BODY ECU POWER DISTRIBUTION BOX ASSEMBLY SPIRAL CABLE SUB-ASSEMBLY