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If your headlights only “flicker” or rapidly pulse but WON’T fully turn on there may be a few underlying issues.

Check all your grounds, connections, socket pins and fuses.

Your vehicle battery may be weak. Try starting the vehicle, allowing it to charge for one minute and then try turning the headlights on again.

You may have the “auto-on” option selected for your headlights. This can sometimes cause a voltage regulation issue going to a newly installed headlight harness, causing the ballasts not to receive full power. We recommend turning the “auto-on” feature OFF.

Is your vehicle canbus equipped or does it have computer controlled headlights? Often times these types of vehicles should have special controllers sent with the headlights to avoid any computer interference or issues. This should be indicated or noted at the time of your build sheet organization (before any work began).

If one side headlight won’t turn on, we recommend following the procedures below :

The first thing to check and confirm are ANY & ALL grounds for the system. A radiator bolt is NOT a sufficient ground. We recommend a direct battery or bare chassis ground – as noted in the installation instructions PDF file.

Next – check ANY & ALL fuses related to the headlight system. This includes any fuses built into your vehicle from the factory as well as any on the new harness we supplied (if applicable). Replace as needed.

Last – check all your sockets and connections. Sometimes when connecting two sockets a pin can be pushed out or bent which can cause a lack of electrical contact. Repair by simply pushing back in OR bending into place as needed.

If none of these sort the issue out – please swap ballasts from side-to-side, to see if the issue follows the ballast OR is specific to that side. If the issue follows the ballast, you may have a defective ballast. If the issue STAYS on that specific side of the vehicle – you likely have a wiring or harness issue.

Please contact us below regarding a faulty ballast.

If your headlights BOTH won’t turn on after completing your installation this could be due to a few different things.

The first thing to check and confirm are ANY & ALL grounds for the system. A radiator bolt is NOT a sufficient ground. We recommend a direct battery or bare chassis ground – as noted in the installation instructions PDF file.

Next – check ANY & ALL fuses related to the headlight system. This includes any fuses built into your vehicle from the factory as well as any on the new harness we supplied (if applicable). Replace as needed.

Last – check all your sockets and connections. Sometimes when connecting two sockets a pin can be pushed out or bent which can cause a lack of electrical contact. Repair by simply pushing back in OR bending into place as needed.

Double & Triple check all the contents of your packages to ensure everything was included with your build. This can include (but is not limited to), wiring, ballasts, bulbs, pigtails, plugs, our warranty w/instructions link card and any other specific build items.

It’s important to confirm all items are received so a proper installation can take place.

Please contact us below if you feel something is missing from your packages. Most often something settles at the bottom with packing material.