I purchased the 200SX last night
I also checked the fuse panel diagram under the dash, but could not find anything specifically pointing to the washer pump. I'm guessing the fuse could be related to other things as well.
Is the pump the black thing that almost looks like a small starter attached to the firewall on the passenger side? It also seemed to have some plastic or rubber bag like thingy attached.
As far as the hoses, I imagine you can easily unhook them, blow them out, and hook them back up?
Still I guess I'd hear a motor sound if the motor was working which I did not hear.