Light Q

[timgco]

So ijust took a 2500 mile trip. I left the house when it was dark and noticed that my headlights and dash lights were flickering from time to time. sometime they would get brighter and sometimes they would go on and off very dast. i took it Bergstom hummer in Milwaukee. They repalced some module (PN 15064149). They said this should take care of them problem. They couldn't tell me what could have caused it tio go bad, but I should be fine. So that same night, it starts doing it again. DAMN!

so I drove the truck all the way back to Denver with it doing the same thing. being Sunday, I didn't have a choice. Anyone have ideas on this? I checked for DTC's and nothing comes up either.