Plug the motor or a known good motor in and it clicks & I feel the torque flick the motor momentarily.
But press switch and not a peep

I've tried a 10 second re-set, still nothing so I am confused as to why it's receiving power & signal when the switch is pushed or pulled, the motor clicks when plugged in to suggest it is getting a message via the BSI

The only thing I did clock was the switch showed 12v on my digital meter whether I pushed down or up. But I guess that is for the motor to decipher.
I don't know where to proceed from here if I'm honest....
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What am I missing?