Well I see this thread is just burning up!
Just by chance I ran across another '92 Sentra today & had my meter with me. The guy let me test it & I got the same zero continuity at the terminal that I was questioning, so I guess that is normal. Also fired up my car & checked to see if it was getting any overvoltage when I revved it up. Nope, looks good. Still does not mean that it could not be an intermittent thing. But it seems unlikely.
I think next step is to pull the light & get any loose pieces of glass or anything else that might be floating around in there out.
Still, if anyone has any thoughts on this, I'd like to hear them.
Anyone that's not on the other side of the world have a rh headlight they would sell & mail to Alaska? Need to replace the really broken one that actually does work. Poorly. Looked in the ads & didn't see any.