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

Answer 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 »

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

How to Test a GM Horn Relay for a Short?

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 »

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 Wire a Car Horn Relay?

A car horn relay is nothing more than a "remote light switch" from an electrical standpoint. The relay is normally open with power from the battery to the relay and from the relay to the horn. The ... Read More »

How do I wire a car horn relay?

ProcedureLocate the non-battery wire of the ignition switch. Make a connection from the ignition switch wire through the horn relay box and attach it to the horn button or switch. Run a hot wire f... Read More »