gm finally came up with a reason for all my drl's coming on and off and my passlock system shutting my car off.they said that when the guy did my headlight conversion, he messed up my harness and that was causing it to backfeed voltage causing the pcm to not re-flash and not remember the r code and stuff. can this happen and make sense? the harness is 375 plus labor so i wanna know if it could be it. thanks again guys