Interior light and more problems

[Buddaorf]

Any one know anything about the lighting system or who to talk too.

 

Heres the problem, The Fog lights, Interior Lights (all), and Bed lights all of a sudden stoped working. It begain with the fog light now the rest or them. Can find anything wrong with any fuses or relays. Really could use a wiring diagram.

 

Got a 2002 GMC Serria ext cab with the 2500HD Duramax

 

[Shaners]

I'm guessing you have a problem with your BCM (Body Control Module). The dealer can check it out and reflash it for you...