The back corner of my sunroof won’t go completely down. Any way to fix it? :) tyia

The other day mine got stuck in fresh air mode so I pulled the dash cover off for the bajillionth time and pushed up on the door and the motor fired up immediately and has continued to work the past 20 times I've tried it. One thing I noticed when doing this with the engine off and the blower speed on low is a noticeable clicking sound when the door finishes moving to the selected position, which makes me think that ridiculously large assembly it's in uses relays.

I'm guessing if I tear mine open (I don't even know why I'm pretending this thread could possibly satisfy my curiosity since it's literally the last component of the S-series i don't know exactly how it works), I'm going to find a motor with a pinion driving a big gear, which is powered by a SPDT relay. There will be a giant capacitor following a full bridge rectifier circuit and a microcontroller that drives the relay coil while monitoring the motor's current usage, deciding to shut it off when it detects a stall. Before actually listening to it, I would have assumed it was a stepper motor, but since the assembly only has two wires (B+ and ground, with the recirc switch switch reversing the polarity), that seems unlikely.

Anyway of course of the 20 or so junked gen2/3 s cars I've seen, every single one but the only one close to me today still had its original recirc motor. Seeing as there's actually one in stock at my local O'Reilly's, albeit it's a murray branded one, I'm guessing they aren't as reliable as I'd hoped.

Another reason mine could have temporarily shut off is the valve is literally stuck. It does feel uncomfortably stiff, like dry rubber on dry rubber. Perhaps if I can pull it off without having to tear out the entire HVAC module I can find some kind of lube.