I've taken the plunge. I couldn't source a LHD 75 anywhere with electric seats. So i had nothing to lose.
I removed the seat (eventually) and then i could access the module.
I managed to remove the module and what a very poor design i found inside. The switch was broken internally. The matchstick yellow pin was rolling around in the module. The black switch was broken off. M11 on the circuit board was naked and obviously broken. M12 was ok.
Can i source a replacement switch to replace M11 on the circuit board anywhere? Or can i source a replacement LHD circuit board module?
Many thanks.