i have a 2000 silverado and for the life of me i cant figure out why my brake light and the left side of the 3rd brake light is out. i checked the bulbs and they are good. replaced them just to be sure and still nothing. checked the fuse and it to was good. still i replaced it and nothing. pulled the 4 connections under the bed and cleaned them and reinstalled them and still nothing. i have no power at either connection. am i missing something?

 

GM had a recall on the "harness" for those. '99 through '06, maybe? It's something like that. I got a notice in the mail about it for my crew cab.

 

There is also a junction box under the back of the truck that might have went out.

 

Do you have trailer wiring added to your truck? If so, what style/design is it? Pics would be helpful if you do have it. I'll post a wiring diagram for you also, maybe it will help you.

 

 

yeah it has the trailer wiring but its the factory system that came with the tow package. i forgot about this thread since the engine blew up sorry guys. thanks for the info ill look into the wiring diagram when the engine gets back from the machine shop. doing a 383 build with it now.