What does a fog light relay do?
What does a fog light relay do? The fog light relay is the electrical relay that is responsible for controlling power to the fog lights. The fog lights are lights underneath the headlights that are designed to improve visibility in dense fog or rain conditions. They are meant to help the driver see the edges of the road when visibility is low. Why do you need relay for fog lights? How do you connect a fog light to a fuse box? Connect the 10-gauge wire from the relay to the fog lights positive wire with a yellow butt connector. Attach...