Hey! I'm new to these forums, but not new to them if you know what I mean, lol. I've always looked to them when I needed to fix my Cobalt, but I have now came across an issue to which I haven't seen a direct fix to. I have a lone DTC U2107 code in my car which states, Lost Communications with Body Control System and an issue I have seen is: No start no crank, unless jumped and then car doesn't last long before dying again, but battery and alternator is fine. Any suggestions on this? Thanks in advance!