What Is a Horn Relay?

Answer When you press the horn button on your car or truck, you operate a relay that makes contacts to connect the horn to voltage from battery. Low current through the button controls higher current thro... Read More »

Top Q&A For: What Is a Horn Relay

What Does an Electric Horn Relay Do?

An automotive horn is an important safety component used to alert drivers and pedestrians. The horn system in most vehicles is comprised of three primary parts: the horn, the switch and the horn re... Read More »

How to Replace a Horn Relay?

The automotive horn relay, an electromechanical switch, operates the horn. When you push the horn button on your steering wheel, you are closing a switch, allowing a small amount of current to the ... Read More »

How to Install a Horn Relay?

A dead horn is more than just an inconvenience -- it's a safety issue. A major cause of horn failure is the relay that controls it. When you hit the button on the steering wheel, you close a simple... Read More »

How to Test a Horn Relay?

One reason a vehicle's horn may not work is a failed horn relay. Testing a vehicle's horn relay is the place to begin when troubleshooting a horn that fails to honk. You can sometimes test a horn r... Read More »