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Yep. Same with mine. I did order that relay box from GMpartsGiant. Definitely worth a try. 

I looked at the oe pulse board. And all the solder joints look good. A replacement looks like p/n 22154753. But is hard to find. There’s got to be something a little wrong. Like a ground or something. Now I’m only bench testing it it’s not bolted back onto car. Does it need to be mounted for it to get resistance?  I’m really stressed about this. 

right, thats how mine is and i was trying to deduce if his was the same setup (as I assume it is). reason being, from fully slid open -> closed, and closed -> vent both use the same side of the button, the same direction, and vice versa for opposite direction. if it's venting and closing/closed to venting properly, it may be getting bound up, but if it's one side of the switch every time it may be a different issue. If it drops a bit below, I'm thinking maybe it's not getting past the point of being down far enough to start sliding back; bound up, or even something wedged in there, but if it's going down below the roof line then it's at least attempting to start moving to the slid open position.  Do this, with it vented, can you see a little tiny button on the side of one of the hinge/slide mechanisms? I thought for a while mine was just getting stuck pressed so it thought the sunroof was closed   My issue was from vent -> close and close -> slid open that side of the switch/button/relay would work about 50% of the time for a while and then it got to the point where it would work less than 1% of the time, until I finally grabbed that other newer  relay unit to experiment, and it worked out

I would`ve liked that badge to be illuminated on the door pillar with black powdercoated door handles/lockplate vs the vertical pillar handle design we got.

Bad belt/tensioner, dried out vacuum lines, failing injectors, worn out O2 sensor, ethanol gas, corroded battery/starter/alternator cables and grounds are all things ive experienced in the different versions of the 3.1 running poorly or not at all. A compression and fuel pressure test might be a good idea here.