92 lesabre

hey i need the heater controls for my buddys car and or i need a wireing diagram, the controls just quit working and we need a new one or used dont matter

Exactly what is not working?

a) Low speed not working? - There's a fuse, blower resistor, and relay involved.
b) High speed not working? - fuse and relay involved
c) Defroster works, no vents won't? - vacuum hose

hey sry it took so long my buddy went out of town but ya the high and low doesnt work right now he has a toggle switch set up but it gets kinda hot when drive for a long time whether its on or not