Fog lights, or parking lights stopped working

[sylvermagyk]

I really hope I am not repeating someone else's post, but there are so many threads, I couldn't find anything, so I am posting a new one. All of the lights in my 2007 Yaris liftback work except for the, well, foglights or are they called parking lights? The headlights both brights and norm work fine, my brake lights and rear lights work fine, the reverse lights are fine, all interior lights are fine, turn signals are fine, but the parking lights won't come on at all. I guess they aren't necessary because it passed inspection without them working. I think they are also called running lights. They would flicker on and off, and if I hit the side of the car would come back on, but now they are compeltely out. Is it just a bulb change, or could it be a fuse? And how would I fix either of those? Thanks!