Depending on the code you received...you may want to have your battery checked out. Could be a bad battery. I had a very similar situation, I didn't exactly get the code, it was either 3-5 or 5-3. Anyway, I had my battery tested at Sam's Club and it came up "bad". See this thread also:
http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=322068&page=1&view=collapsed&sb=5&o=7&fpart=1 
