elevation wiring issue

[Didier Molard]

Hello all.
An issue while i was preparing/ checking the elevation for my comet (switching from old to new electronics) and also a question on what to plug where ?
- on the harness for the elevation limitation switches, a wire has gone free ?
seems it was not crimped with the connection in the plug , so it might have been with one of the connections on the limitation switch.. but where ?

Then, the black plug is supposed to be connected to power moduel, but there is nothing on the power module for elevation ?
should it be plugged in the spare or is it a plug used in other tank model ?

and what is the use of the white plug, as elevation motor is supposed to be already powered by the motor control B red box ? (brown/blue wire plug)

unfortunately, there is nothing about the limitation switch wiring on the documentation

thanks in advance