12v Relay Wiring Diagram 5 Pin For Horn

Horns are a critical safety component of any vehicle, alerting other drivers of your presence and providing a warning sound. But installing them can be daunting for the average driver. Fortunately, wiring a 12v relay is simple and straightforward with the right wiring diagram.

By understanding a 5-pin relay wiring diagram, you can easily install your horn in your car or truck in no time. Let's have a look at the diagram to understand the connection between the components and how they are wired.

At the center of the 5-pin relay wiring diagram, you will find the "common" pin, otherwise known as the center pin. This pin will provide an uninterrupted power connection for the relay. The remaining four pins are all connected to the positive and negative terminals on the battery.

The first pin on the left, labeled "switch," will connect to the switch on the dashboard that controls the horn. When the switch is engaged, the current will pass through this pin and will activate the relay to sound the horn.

The second pin is labeled “ground” and it connects to the ground wire in the horn circuit. This ensures that when the switch is engaged, the circuit is completed and the horn sounds.

The third pin, labeled "relay," will connect to the relay itself. This pin helps the relay to activate when the switch is engaged.

The fourth pin, labeled "horn output," will connect to the horn's positive terminal. This ensures that when the relay is activated, the horn will sound.

Finally, the fifth pin is labeled "frame" and it connects to the frame of the vehicle. This ensures a safe connection and helps to prevent shorts.

By understanding the 5-pin relay wiring diagram, you can easily install your horn to your vehicle. The process takes less than an hour and requires basic wiring knowledge. With the right wiring diagram, you can ensure a safe and reliable installation.

How To Wire And Test A 5 Pin Relay