Good to hear - to above, battery is behaving appropriately both (via MM readings) with and without a load. The error was precisely as above computer shows error 15 SMG relay implausible value or some such gibberish. To the OP the windows can be reindexed by going from top position to bottom and back up (relearning position) - once indexed the universal switch should behave properly. I assume you figured this out given the age of the thread but I noticed the question wasn't addressed.
Thanks again - I think I am in good shape.