Nissan Repair: 1994 Nissan Sentra A/C, Blower and Defogger, nissan sentra, haynes manual

Question
My A/C first stop working then my blower and defogger. I checked all the fuses and relays and they're all OK. If the problem has something to do with wiring, is it possible if I can actually buy an electrical book specific to my car? Thank you for any information you can send my way.

John

Answer
John,

First, it sounds like a couple of things are wrong.  When you say the a/C stopped working so does that mean it did not cool anymore.  If so, then check the refrigerant.  Second, the blower does not work.  If it does not work in all modes then I would say the switch is defective or the blower motor is bad.  A Haynes manual has wiring diagrams in the back and you can get one at the parts store.  If the blower works on high only then it is the resistor on the blower box.