2002 Chevy Silverado fog lights

I got factory fog lights for my 01, the instructions say to flash the computer ECM, and BCM. Only dealers do that. So what I did, was to junk those OEM foglights and get some good ones. I got PIAA's, fit good in there, and don't have to go through ECM, and BCM, just good old fashion wiring like we used to do. The lights work a lot better too. That's my recommendation. Check the ground, more times than not this is it, especially if nothing else is wrong. Good luck!