Kwikee Step magnetic switch and magnet

Mine was on the left side frame, but all that was visible was the small thin passive magnet. Hardly noticeable. Like you I couldn't find it initially because the previous owner had folded the other half of the magnet switch with the wire back and wrapped tape all over it.

If yours has been cut off or whatever, you can just get another one and wire it in using the color code in the Kwikee literature.