thanks everyone particularly ILUVMILS for your very detailed reply
questions:
would a bad battery cause this kind of code? possible at all? only reason i mention is because my auto wipers, automatic lights were all acting up until i unplugged main battery for 30 mins. transmission also started shifting way smoother, no jerkiness to it. im just wondering if this is related at all?
also where can i buy this part online? canadian dealers charge a LOT for parts....