I thought I would post two of the sites I have found helpful when repairing seat switchs. Hope these help others. The first is something that is not usually covered but I have found it necessary. The second one says it is about Rover switches but they are the same.
http://articles.mbz.org/interior/seats/seatsw/
http://www.rangerovers.net/repairdetails/seatcontrols.htm