ashuri,
did you ever get this resolved?
I has a 2013 and am having this come up, just two days ago I was having issues, let the car sit for a day unplugged and last night when I plugged it in it started to charge just fine.
I think this might be a charing software glitch from switching to and from 120 to 240volts.
Not sure what the relays do, but it appears to be a ground fault in the charger.