Could that be the reason one would go down but not up? My right one does that.
your little cam action arm thingy (damned if i know the right name
) has probably come loose, or theres a problem with the wiring for the right headlight.
try cranking it up by hand, and if you crank and it doesnt come up, it looks like your going to have to get in there, and theres a threaded rod with lil ball cups on each end.
theres a cam arm bolted to the motor, and it seems like they decide to come loose every now and then.
all you need to do is to hold it in the upright position, then tighten the bolt.
reconnect and reassemble everything...
if this isnt a good enough description, try a search, as i know ive explained it in detail at least once before.
and turbosupra, there is a plug for the motor, but i think it also controls the lights lighting up.
iirc, last time i looked, it was a white plug, with about 5 wires in it, and i unplugged them on my parts car cause the lights were iced up and would have burnt out the motor otherwise.