Automotive Relay Switch Wiring Diagram

Fog lights off with high beams on relay wiring diagram.

Automotive relay switch wiring diagram. The purpose of a relay is to automate this power to switch electrical circuits on and off at particular times. A wiring diagram is a simplified standard photographic representation of an electrical circuit. Learn what a relay is how it works and why you should. Relays are a mechanical device that can connect or disconnect power to an accessory when it gets a low voltage signal from a switch.

The factory wiring in modern cars is light gauge and is not designed for additional loads. This is a general wiring diagram for automotive applications. The purpose of a relay is to automate this power to switch electrical circuits on and off at particular times. I go over what each contact of the relay is for and how to understand the schematic that is.

Using a relay can also shorten the distance. The real benefit behind a relay is more than automation. As in the diagram a wire is run from a 12 volt power source to the switch in the cab and out to the relay placing a fuse at the source of the power. This video covers both 4 and 5 pin 12vdc relays.

Instructions for wiring a standard automotive relay with descriptions of the pin out and the schematic. Follow the relay s wiring schematic when connecting the wires to the relay one of the relays terminals goes to ground. Automotive relay diagram relays relays are switches controlled by electrical power like another switch computer or control module. 12v universal wiring harness kit relay fuse switch.

Using relays in automotive wiring. Some people may ask why they should bother using a relay when you can just wire an accessory directly through a switch to its power source. A relay can be used to power a new circuit with very little added current draw on the original wiring. 1 wiring diagram and users instruction.

A wiring diagram is a simplified traditional pictorial depiction of an electrical circuit. It shows the components of the circuit as simplified shapes as well as the power and signal links in between the tools. It reveals the components of the circuit as simplified shapes and also the power and signal connections in between the tools. Assortment of 12 volt relay wiring diagram.

In this video i show you how to wire a 12 volt automotive bosch style relay. Assortment of automotive relay wiring diagram.