(LunarVortex Wrote: Hello, All. I am looking for a wiring diagram for a 97 GMC Yukon for headlight circuits with DRL. we put in new turn signal switch to fix no brake lights on main brake lights and now we have no low beams, put old switch back in and still no low beams. I am looking for a good diagram so we can trace everything out. Thanks in advance if anyone can help Password via PM, for you wirings diagrams.)