Where can i get a vacuum diagram for the heater-a/c control on a 1985 nissan 300zx, non-turbo?

Heater only works on defrost, no matter which button is pushed. I need a complete vacuum diagram, as well as component list and locations. I have tried various web sites, book stores, etc., but can't seem to find what i need, and here in Reno, NV, it is getting pretty darn cold with no heat going to the floorboards.Where can i get a vacuum diagram for the heater-a/c control on a 1985 nissan 300zx, non-turbo?
Download the FSM from phatg20.net If you need more information hit up http://forums.nicoclub.comWhere can i get a vacuum diagram for the heater-a/c control on a 1985 nissan 300zx, non-turbo?
That is the default position for the heater ac for no vacuum. Most of the time the vacuum hoses under the hood the little ones have broken at the T on the manifold or vacuum amp on the passenger side of the radiator support where there are three little hoses and round vacuum can solenoid. Under the dash board left side vacuum switch has 16 vacuum hoses but almost never fails. Even with the factory shop manual the diagram is hard to read. Make sure there is vacuum getting into the car first.
go to phatg20.net and they have full factory service manuals for most nissan and infiniti cars..... but that problem may be related to your mode door motor. check that website and read in the FSM what it says about the door motor and if that isnt it it could be some of the linkages in there that move the vent doors opened and closed. good luck if its the linkages.