Lighting problem 2000 jeep wrangler sport

SOURCE: 03 Jeep Wrangler fog lights won't turn on

There seems to be a problem on the power side. You should have at least one terminal at the relay that is hot. The switch activates the relay and transfers the power from the "live" terminal to the hot lead to the lights. Good news is you can completely disconnect fog lights and make your own harness (including a relay) and use a push button or toggle switch on the dash, just like the aftermarket add on lights use! (and it's likely cheaper and more reliable than the original setup)

SOURCE: dash lighting and tail light.

the bulb in the dash went out you need to remove cluster panel near where the light went out

SOURCE: Fog lights will not turn off on 2002 Jeep Wrangle Sahara

This is a relay problem, Dont cut any wires you will still have power running to the fog lights and it will drain your battery still so you are not fixing the problem. The Sahara comes standard with fog lights and there is really no way to get rid of them except for repairing the problem at hand

SOURCE: 2001 jeep wrangler sport ,fog lights on, switch off

I have a simular problem. Only mine does not some on. I tried to replace the turn signal switch assembly with a used one. The replacement work ok on the fog lights but the rest was bad. As near as I can figure it, the switch assemble is not well made and had many ways to go bad. Either replace the whole assemble or wire in a bipass switch. I am going to go with a bipass switch. I don't trust the new jeep products.

SOURCE: 99 gmc denali dash light, parking lights, tail

You have a short to ground somewhere in the drl-fog lamp circuit. Check for obvious wiring connector or wiring to drl & fog lamps. check wiring for pinched or broken wires coming from sockets. If you don't find problem, you can trace wiring from lamps to main harnesses and hopefully find source of short.
hope this helps.