Purchased a more advanced OBD2 code reader to diagnose an ABS fault on another vehicle. Heard about other people plugging those into their hellcats and coming up with codes that don't throw a MIL/CEL. Plugged it into my mine and did a "FULL BODY SYSTEM SCAN"; had a bunch of stored codes pop up...microphone, humidity sensor, door, blah, blah, blah. My guess was that these are thrown off when your battery dies as most of them said some sort of low voltage fault. I purchased mine used, and in the carfax, it mentioned that a battery was replaced prior to my purchase. Probably sat on the lot and died like numerous vehicles before.
I erased all the faults and am eager to see if anything pops up after some driving. The one thing that I was interested in was the microphone. When I take calls, 3/4 of the time, people say they can't hear me, so I wonder if I have a bad unit/ground there.