If you’re looking to install driving lights on your vehicle, you may need a 4 pin relay wiring diagram to help you with the installation process. Driving lights can be helpful for improved visibility while driving at night or in low light conditions. A 4 pin relay can be used to control the lights, ensuring they turn on and off correctly. In this article, we’ll provide a detailed guide on how to wire a 4 pin relay for driving lights.
What is a 4 pin relay?
Before we dive into the wiring diagram, let’s first understand what a 4 pin relay is. A relay is an electrical switch that allows a low current circuit to control a higher current circuit. A 4 pin relay has four pins, which are numbered 85, 86, 87, and 30. Pin 85 and pin 86 are the coil pins, which control the switch. Pin 87 and pin 30 are the contact pins, which are responsible for connecting and disconnecting the circuits.
Pin 85 and Pin 86
Pin 85 and pin 86 are the coil pins of the relay. When the coil is energized, the switch is activated, and the contact pins connect the circuits. Pin 85 is connected to ground, while pin 86 is connected to the switch.
Pin 87 and Pin 30
Pin 87 and pin 30 are the contact pins of the relay. Pin 87 is normally open, while pin 30 is normally closed. When the coil is energized, pin 87 closes, and pin 30 opens.
How to wire a 4 pin relay for driving lights
Now that we understand the basics of a 4 pin relay, let’s look at how to wire it for driving lights. Here’s a step-by-step guide:
Step 1: Mount the relay
The first step is to mount the relay in a suitable location. The relay should be mounted close to the battery, as it will draw power from the battery.
Step 2: Connect the driving lights
The next step is to connect the driving lights to the relay. The positive wire from the driving lights should be connected to pin 87 of the relay. The negative wire should be connected to ground.
Step 3: Connect the switch
The switch should be connected to pin 86 of the relay. The switch can be a toggle switch, push button switch, or any other type of switch.
Step 4: Connect pin 85 to ground
Pin 85 of the relay should be connected to ground. This can be done by connecting it to the negative terminal of the battery or any other suitable ground point.
Step 5: Connect pin 30 to battery
Finally, pin 30 of the relay should be connected to the positive terminal of the battery. This will provide power to the relay, allowing it to switch the driving lights on and off.
FAQ
Why do I need a 4 pin relay for driving lights?
A 4 pin relay is needed to control the driving lights. The relay allows a low current circuit, such as a switch, to control a higher current circuit, such as the driving lights.
Where should the relay be mounted?
The relay should be mounted close to the battery, as it will draw power from the battery. It should be mounted in a location that is easily accessible and protected from the elements.
What type of switch can be used?
Any type of switch can be used to control the relay. The switch can be a toggle switch, push button switch, or any other type of switch.
What size wire should be used to connect the driving lights?
The size of the wire will depend on the current draw of the driving lights. It’s recommended to use a wire size that can handle at least 10% more current than the driving lights are rated for.
Conclusion
Wiring a 4 pin relay for driving lights can be a simple process if done correctly. By following the steps outlined in this guide and understanding the basics of a 4 pin relay, you can install driving lights on your vehicle with ease. Remember to always use suitable wire size, mount the relay in a suitable location, and protect the wiring from the elements. By doing so, you can ensure that your driving lights will provide improved visibility and safety while driving at night or in low light conditions.
