Car Electrical Relay Switch

If the relay clicks and the circuit is still not.

Car electrical relay switch. Whenever you operate a switch to an accessory in your car that carries a lot of current such as the lights wipers or horn you run a small amount of current through a relay which in turn closes contacts to operate the accessory. Using a relay keeps the higher voltage out of the passenger compartment of the vehicle and is just less taxing on your vehicle s electrical system in general. They are found in all types of vehicles. If one of your accessories doesn t come on and you suspect the relay is bad you can perform a few simple tests.

If something were to fail and short the chances of an interior fire are significantly reduced if a relay is utilized to allow the higher voltage switching occur in the engine compartment. Step 4 once the relay has been identified gently grasp or touch the relay in question have a helper turn the ignition key to the on position then crank the engine over the relay should click in one of the ignition switch positions. An automotive relay is an electronically operated switch. Online led store 6 pack bosch style 5 pin 12v relay kit interlocking harness socket holder 14 awg hot wires spdt 30 40 amp 12 volt automotive relays for auto fan cars by online led store 12 45 12.

If you ve got an electric cooling fan on your classic car or hot rod and you want to know how to wire it with a. Every year vehicles are equipped with more and more safety luxury and convenience features and most of them rely on electricity from the battery and charging system the ignition switch is your gateway to electric power and once engaged a myriad of switches are at your disposal for entertainment navigation windshield wipers lights door locks windows climate control operation and much. Relays are used where it is necessary to control a circuit by an independent low power signal. An electrical relay is a switch that is under the control of another circuit.

We show you how to wire in an electric fan relay kit with a thermostatic switch. A classic example is the system used to start a car when someone turns an ignition key the ignition does not interact directly with the car battery instead it activates a relay which passes the signal on so that the car can start.