Horn system Horn relay Low pitched horn High pitched horn Indicator Circuit DESCRIPTION The indicator displays the location of the obstacle and the approximate distance between the vehicle and the obstacle either by blinking or turning on. WIRING DIAGRAM INSPECTION.. Toyota Sienna horn wiring diagram Power flows from the horn fuse to the input side of the horn relay control coil and the horn relay contacts. From there, power flows to the horn switch. In a properly operating system, pressing the horn switch completes the circuit to ground through the ball bearings and then to the steering shaft to ground. That energizes the horn relay control coil which.
This wiring diagram (EM36H0U) manual has been prepared to provide information on the electrical system of TOYOTA 2021-2024 Sienna Hybrid Vehicle. It is very important to read and be familiar with this manual thoroughly for proper repair and maintenance.. The snails work on both the horn button and the panic button. No big deal as I can just move the disc horn, but I'm curious as to why they chose to use separate circuits. Anyone have the wiring diagram for this?