993 cabriolet not connecting to windshield

[motocarlo]

Hello. Hate to repeat an old topic, but I could not find my specific problem and hoping someone might have some guidance.
I disconnected the drive that raises and lowers my top and have been using it happily manually. Only power part I still use is the final pulling into the windshield and the releasing from the windshield.
Mine has stopped working on the attaching.
It still will release from windshield. I tried shunting the micro switches to see if it would work via by passing them, but no difference.
So I assumed they were ok. I then dropped the controller and figured it was corroded (like my immo and ecu under the driver's seat were).
But it looks like someone has already replaced it. (fotos) I tried switching a relay to see if that could be it. No difference. Fuse fine.
It will work occasionally . When it does work, both motors fine work.
What am I missing? Any ideas?