Ok. Sorry for your troubles Rhino. I'm guessing the TIPM is the fuse/relay center box. This thing has been solid for 300,000 miles. ROCK solid! I wouldn't call it junk. If a $600 bill gets me another 300,000 it seems pretty fair to me. I have to agree that for vehicles that were built to tow this is pretty dumb. If you have a relay, why wouldn't it be plugged in to the top with the rest of them? I blame it on the Germans. For now I'm heading to Vegas with my left brake light on. I just turn the rest of the lights on so it's not so obvious. The left signal still blinks a funny little blink. Thanks for the help guys!