Well, resoldering the ramp motor connector pins appears impossible without the right pin extraction tool, I see now that I have taken a closer look. I had assumed you could finagle them out with a couple jeweler's screwdrivers like you can a regular Molex pin, but they look too tiny and it appears that tabs spring out on three sides when a pin is inserted. So, they are still in the connector and I cannot discern whether any solder is even present. The wires sure aren't loose at least, I tugged on each one rather aggressively, so that's something, I suppose. Still concerned about eventual corrosion however, assuming the solder is there, as that is equivalent to four cold solder joints. I even considered screwing some small screws into the connector next to the crimps to improve the mechanical connection, but I decided not to experiment expecting to get it right the first try.
I chickened out on simply removing the connector and soldering the wires together just yet. It felt like that would be too radical when I had just verified the wires were in there real good. Better to keep everything factory for now.
I will say that the GI lamp socket behind the motor sure looks close to shorting against the motor housing! But there was some insulating tape added between them, and if they did short it would affect the GI board before Node 10, I guess. Still, out of an abundance of caution I disconnected the bulb and I don't even miss it. Coincidentally, one of the wires going to that bulb did have a nasty nick in the insulation to where I could see the wire! Looks like a soldering iron melted it. Another reason to unplug it...PXL_20230124_041339280~3 (resized).jpg