How Can One Bypass Headlight Switch?

Having a headlight switch bypass can be useful in a number of scenarios. For example, if your car has an aftermarket headlight switch installed, you can bypass the switch in order to get your headlights to function properly. However, it can be difficult to know how to do a headlight switch bypass, as there are a variety of methods and wiring diagrams that need to be followed. That’s why we’ve put together this detailed guide on headlight switch bypasses.

In this article, we will provide step-by-step instructions for how to do a headlight switch bypass. So, if you’re ready to learn how to do a headlight switch bypass, then read on!

Where is the headlight switch relay located?

If you are looking to bypass your headlight switch, you will need to find the headlight switch relay. This is typically located in the fuse box and serves as the link between the headlight switch and the headlight wiring. When you bypass the headlight switch, you are essentially cutting off the power from the relay switch. However, it is important to note that this is not a permanent solution, as the headlight switch will still be operational.

Following this guide, you will be able to bypass the headlight switch and provide power to the headlights without having to go through the switch.

What happens when a headlight switch goes bad?

When your headlight switch goes bad, it can be a major inconvenience. It can prevent the headlights from coming on or going off when they should, and even cause them to flicker inconsistently. You can bypass a headlight switch to get around this problem, but it’s important to know what you’re doing. Following this guide will ensure that you can bypass your headlight switch safely and with minimal fuss.

Can you bypass a headlight switch?

Yes, you can bypass it! The headlight switch bypass is an easy and relatively cheap way to control your headlights without having to replace the headlight switch. Bypassing the headlight switch can save you money, time, and effort as it can be done in a few minutes with a few simple tools. To bypass the headlight switch, you will need to find the power source for it, and then connect a wire from the power source to the headlight switch. After that, you can control the headlights with a switch of your choice.

The function of a headlight bypass switch 

This bypass kit reduces the electrical strain on the main headlight switch relay (part number 108388) by providing power to the running lights and side lights through a heavy-duty relay, rather than through the headlight switch. Conversely, the lights and side markers draw about 4 amps of power through the switch.

With this bypass, the current draw is reduced to only the amount of the trigger current of the relay. This decrease in current flow through the main switch by the bypass prevents overheating and can extend the life of the switch. This installation does not alter the operation of the running lights and headlights.

Also, a headlight bypass switch is a mechanism that allows you to override the headlight switch and activate a headlight without having to turn the switch on manually. This is a useful feature if you need to turn on your headlights quickly in an emergency.

Lastly, with the switch bypassed, you can quickly turn the headlights on and off as needed.  

How to bypass a headlight switch 

Learning how to bypass the headlight switch is a crucial step in any automotive repair or customization project. While it can be intimidating to the uninitiated, with a few simple steps, you’ll be able to do it with ease. Here are the five steps you need to follow to bypass the headlight switch: 

1. Disconnect the negative battery cable. 
2. Remove the headlight switch. 
3. Disconnect the wiring harness.
4. Install the bypass switch. 
5. Connect the wiring harness to the bypass switch and reattach the negative battery cable.

By following these steps you’ll be able to safely and easily bypass the headlight switch

Conclusion

The Headlight Switch Bypass is a great and simple DIY guide for anyone looking to bypass their headlight switch. It is a relatively straightforward process that can be done quickly. Once completed, your headlights will be able to stay on as long as your engine is running. This is especially helpful if you’re stuck in a dark location and need to get out quickly.