Ive searched and haven't found the answer to this. Ive got a 94 SC400 and 92 SC300 that I took the seats out of and had recovered. I put the SC400 drivers seat in and there is no power to it.

To trouble shoot I put the sc300 in and it works fine so I know its not the wiring. The seat was working before I took it out. I looked to see if I saw any loose wires. Im afraid its the motor that it got banged around in all the moving???? Fortunately its in the right spot for where I sit but now ive got to figure out how to install with the seat in the very far back position.