Fog lights are an important safety feature for drivers, providing visibility in poor weather conditions. However, like all car parts, fog lights can develop problems over time. In this article, we will discuss some of the most common fog light problems and solutions to help you identify and fix any issues quickly. Whether you're a car enthusiast or just a casual driver, understanding these common problems and solutions can save you time and money down the road.
fog light not working how to fix

Blown Fuse

Blowing a fuse is the most frequent cause of fog lights not working properly. The fuse guards against electrical overload and safeguards the wiring and circuit. Typically, you can find it in the engine compartment or under the dashboard. Some causes of blown fuses include:
Because there are too many circuits using it for power, the fuse has been overworked.
A short circuit was created by broken wiring.
The fuse box has malfunctioned due to overheating or a fault.
Solution: Start by inspecting the fuse. Replace it if necessary if it is blown. If you are unable to locate your car's fuse box, we advise seeking assistance from a qualified repair.

Bad Bulb

The bulb is the next thing to verify if the fuse is OK. If your car's rear fog light occasionally stops working, it's most likely because the bulb has burned out. In that case, changing the fog light bulb should be the fix.
Solution: Replace the burned-out bulb. Once you locate the faulty bulb, you may remove it by rotating it anticlockwise. Then replace and screw back the new bulb into the electrical outlet. Check to see that the connections are clean and that the screws are tight.
Once you finish the fog light bulb replacement, make sure to test the new fog light.
If you want to have your fog light bulb replaced at the auto repair, learn the average fog light replacement cost here.

Broken or Damaged Wire

If one fog light is not working, it is most frequently caused by a broken or damaged cable.
The wiring for the fog lights runs through the bumper; therefore, any damage will result in issues. The wire may be broken by a falling tree, a car accident, or a vehicle treading on the line.
Disconnection may also end up hurting it. Check your wiring if all other potential problems have been eliminated and you are still having trouble.
Solution: Depending on the severity of the situation, damaged wiring needs to be repaired or replaced.

Faulty Switch

A faulty switch may also be the cause of a malfunctioning fog light. The switch is in charge of turning the fog lights on and off. It also regulates the headlights, daytime running lights, and high beams. The fog lights must be turned on by the controller. Therefore, if the switch is broken, the fog light will not turn on.
In addition, a broken fuse box relay or a loose connection in the relay could be to blame. Check the fuse box relay and ensure there are no exposed grounding wires or other connections.
Solution: You can check the switches' stability and power with a multimeter. If the switch is broken, it must be replaced.

How Do Fog Lights Work?

Fog lights are an essential part of a vehicle's lighting system. They are specifically designed to help drivers see more clearly during periods of fog, rain, and other inclement weather. But how do fog lights actually work? 
Most car manufacturers install halogen bulbs in their standard fog lights. These bulbs produce a yellow-tinted light that is easier for the eyes to process while driving in poor visibility conditions. The yellow tint helps disperse the light more broadly, allowing it to penetrate through thick layers of fog and other precipitation without producing additional glare or reflection back onto the driver's eyes.
In addition, many vehicles also come equipped with LED fog lights that provide even stronger illumination due to their greater intensity and longevity compared to traditional halogen bulbs.

Get New Fog Light Bulbs at SuncentAuto

If you want to upgrade to LED fog light bulbs, SuncentAuto has what you need. Head to this page for high-quality LED fog light bulbs at affordable prices.
If you not sure what appropriate bulb size for your car, the handbook for your owner can be used to verify this. Additionally, SuncentAuto created this table of car light bulb sizes to simplify the procedure of changing the bulbs easier for the majority of vehicle owners.