[spiderserie4]

..... as I have 22 volts at the switch a good switch but no current at the motor Connector inside the door.

22 volts? they should move like greased lightning!

only kidding

they will have a relay and there will be a fuse.
is your 81 carburettors or injected?

this is from an 84 owner's manual, likely similar to what you have
it shows fuse/s 1 & 8 for windows, and a relay in the 4th slot from the left ("B" in this diagram)