I have just bought a 91 es that is loaded. Problem is the power seat will only work certain functions. Seat will slide forward but not back, it will work recline one direction but not the other, the raise lower function will work one way but not the other directions. power wings seem to not function at all. I think this must be a reverse polarity on the electric motors that works one way but not the opposite. Problem is I can't seem to isolate the bad leg. Anyone out there have wiring diagrams for the door switch to seat?