Yes, having fog lamps on - either front or rear - when the visibility is good is a motoring offence in the UK and can result in a fine and points on the license.
I would say fog is just weather.
A fog lamp relay serves as an electrical switch that controls the power supply to fog lamps in a vehicle. It allows the fog lamps to operate without drawing excessive current through the vehicle's main wiring, thus protecting the electrical system. By using a relay, the fog lamps can be activated with a lower-current switch, improving safety and reliability. Additionally, it helps ensure that the fog lamps only operate when needed, enhancing visibility in adverse weather conditions.
Fog lamps on a car show up a lot more in the fog than other lamps simple because they are much brighter. It is therefore advised that you only use them in extreme cases of fog as it can cause issues for other drivers if you have your fog lights on when there is little to no fog.
Check the fog light switch and the wiring. Also check the ground wires. There is a power loss somewhere in the system.
On my 2000 town and country, you pull out the headlight switch, fog lamps only work on low beam On my 2000 town and country, you pull out the headlight switch, fog lamps only work on low beam On my 2000 town and country, you pull out the headlight switch, fog lamps only work on low beam
To install fog lamps on a Suzuki Swift, first, ensure you have the appropriate fog lamp kit designed for your model. Begin by disconnecting the battery for safety. Remove the front bumper by unscrewing the necessary bolts and clips, then fit the fog lamps into the designated slots, connecting the wiring harness to the vehicle's electrical system. Finally, reattach the bumper and reconnect the battery, ensuring the fog lamps function correctly.
Yellow lights have good wavelength and improves visibility during bad weather. The current model cars have fog lamps which increases visibility during fogy weather. Yellow lights were used about a decade ago. It is banned in most of the European and western contries.
Take a look here, if your Ford is a MK2. http://www.fordmondeo.org/wiki/index.php/Fog_Lights_-_Mk2
According to the 2001 Ford F-150 Owner Guide : The Fog Lamps take bulb ( # 9145 )
look under the vehicke where the fog lamps are and you will see a rubber housing that fits around the openin gof the fog lamps, Now take off the rubber seal and you will see the mini bulb and alls you have to do is push forward on both of the small springs and it will release and from there you can tak eoff the mini fog lamp bulb.
it will still pass inspection but it is better to buy the fog lamps
I was told one fuse control two fog lamps #53 or #63 under hood in box next to battery. Good luck!