I have read that the drivers seat has a auto cut out which resets itself. Could this be the answer as to why mine doesn,t work & where is it located? The passenger side is O.K

Tel

Probably a broken thermistor wire. It was the same on mine. You have to take the seat out of the car and dismantle it so you can get the bottom. Then you need to remove the clothing from back and there's possibly a broken wire to thermistor. Just weld it back together, make same padding that you wont break it again and put back together.

Of course there could be something other, but it was the case for me.