Ok before i list my problem i have checked the bulbs, fuses, and wires. And brown ground wire. I recently replaced my tail light gaskets and had to cut the pink ignition 12v wire and just twisted them with the red/black wire and the brake light works but not the running lights. If anyone could help that would be awsome ive checked countless threads and no one ever talk about a pink wire...

 

That "pink" wire is not from the OEM harness, its been added or tapped in. I would find out why it was added and fix the problem. Or put it back the way it was and figure it out.

 

Did you figure this out? i have a similar issue with my 99, when i bought it i had a wire going from my side marker to a bolt for ground, (as well as other chopped up wires) so i swapped out the harnesses with good ones from a 96 but it didn't help. Did you find out why your side markers were grounded?