Symptoms of a Bad or Faulty Fog Light Switch

Common symptoms include dim, flickering, or fog lights not turning on at all, as well as a blown fog light fuse.

The fog light switch is the electrical switch responsible for controlling the fog lights. Fog lights are additional lights located below the headlights. They are designed to provide extra visibility in adverse weather conditions such as heavy rain or thick fog. Their low position and wide angle help the driver keep the edges of the road as well as the lanes in view. When the fog light switch fails, it can leave the vehicle without working fog lights. Usually, a faulty or faulty fog light switch causes several symptoms that can alert the driver to a potential problem.

1. Fog lights do not turn on

One of the first symptoms that is usually associated with a bad or faulty fog light switch is fog lights that won't turn on. For vehicles that do not use automatic fog lights, the fog light switch is responsible for turning the fog lights on and off. It works just like any other electrical switch and may break or have internal faults that render it inoperable. A broken or faulty fog light switch will make the fog lights inoperable even if the bulbs are fine.

2. Fog lights are dim or flickering

Another common sign of a car fog light switch problem is dim or flickering fog lights. If the switch has any internal issues that are preventing it from properly powering the fog lights, this can cause them to dim or even flicker. This can also be caused by a problem with the fog light bulbs, so it is highly recommended that a proper diagnosis be made.

3. The fog lamp fuse has blown.

Another sign of a possible problem with the fog light switch is a blown fog light fuse. If there is any problem with the fog light switch that allows an excessive amount of power through the circuit, such as a short circuit or power surge, this can cause the fuse to blow, which will turn off the fog lights. Power can be restored by replacing the fuse, but the fuse can blow again if the original problem that caused it to blow is left unaddressed.

Although fog lights are not commonly used in normal driving conditions, they can be a very useful tool to improve visibility and therefore safety in adverse weather conditions. If you suspect your fog light switch may be having a problem, have your vehicle checked by a professional technician such as AvtoTachki to determine if your vehicle needs a fog light switch replacement.