If your Ford F150 interior lights won’t turn on, there could be multiple problems that are might be causing this issue.
Taking your truck into the shop for repairs is a solution, but doing so is usually time-consuming and expensive.
This post will provide you with some possible explanations as to why your interior lights will not turn on, as well as guidelines on how to resolve the issue along with some FAQs.
Lets get started!
Why F150 Interior Lights Won’t Turn On
If your F150 interior lights won’t turn on, here are some of the most common reasons why.
Also Read: New Alternator But Lights Still Flicker
Blown Fuse
If you have a blown fuse, it’s likely because your fuse box is old or not properly grounded.
You’ll need to replace yours before you can get any other repairs done on your truck.
Less Power
The interior lights aren’t getting power from the batteries.
This can happen if you’re using an aftermarket bulb inside of your vehicle that doesn’t have enough power for its internal circuitry, causing them to burn out after a few uses or months of use.
Damaged Fuse Box
The fuse box has been damaged by water leaking into it or debris getting stuck in it.
If this is the case, then it could be that one of the fuses has become wet and corroded, which will cause it to blow after being triggered by an electrical circuit that needed to be powered up due to another circuit needing power (such as turning on an interior light).
Wiring Problem
If all else fails and your F150 interior lights won’t turn on, there could be a wiring problem inside your vehicle.
In this situation, hire an experienced mechanic who can diagnose the issue and fix any wiring issues.
How To Fix Interior Lights in F150
The control button for the doors is located on the same console as the button that turns both devices on (manual page 135).
The light comes on even when it’s turned off.
If you push the individual lights on the center console and they do not come on when you do so, there is a problem with the vehicle that needs to be taken to the dealer.
Having said that, lets check out one more thing:
You can adjust the level of the interior ambient lighting by pressing the ambient light button, which is located on the left side of the steering wheel (for more information, see page 136 of the manual).
First, you should try increasing the amount of light, and you should also check to make sure that the lighting was NOT initially set to its lowest setting.
If that too doesn’t work, we’d suggest taking it to the dealer.
Also Read: Why are there bubbles on oil dipstick?
Where Are The Fuses On A Ford F-150?
To the left of the steering wheel, near the brake pedal, you’ll find the fuse panel. The relays, spare fuses, and the fuse box will be home accessible once the panel has been removed.
What Fuse Controls Trailer Lights On Ford F150?
The panel of fuses that controls your Ford F-150’s trailer lights can be found in the passenger compartment. The trailer brake control is controlled by the fuse that can be found in location 4.
Check out some more of our electrical related articles!
About the author
Marcus Brown is editor-in-chief of The FatMech and is a mechanic with ten years' experience based in London, UK. Having worked for major dealerships for many years, Marcus now works for a local independent garage and has experience working on nearly every make and model of car. Marcus also has a passion for writing and teaching, which is where the idea for The FatMech came from. In his spare time, Marcus enjoys playing golf, doing home renovations and gardening. He lives just outside London with his wife and son.