How to Test a GM Horn Relay for a Short?

Answer If the horn doesn't blow on your GM vehicle and you've checked the fuse and the wiring, perhaps the horn relay isn't working. Finding it may be a problem, depending on your vehicle. The location ma... Read More »

Top Q&A For: How to Test a GM Horn Relay for a Short

How to Test a GM Horn Relay for a Short Circuit?

A short circuit, meaning an unwanted connection caused by component failure, can occur in your GM vehicle horn relay causing a malfunction. A short in the coil winding causes it to not operate and ... 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 »

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 »

What Is a Horn Relay?

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 »