My factory non-modded fog lights quit working the other day. The bulbs are fine and I have wiggled the wires underneath. Most of the info on this thread pertains to fog light mods, etc. I was able to glean that I may need a new switch. Should I clean the MFS? Any help would be appreciated.

 

I forgot to mention my truck is a 1999 SuperCab Off Road.
Any tips or info on where to start looking would be appreciated.

 

I know it is a silly question but did you check your fuses. You may want to see if you have power at the plug for the light. I am not sure for your truck but there may be a fuse for control power (ie power to the relay) and a fuse to the lights themselves.

SG