Nissan Repair: rear window and heater, nissan 240 sx, 1992 nissan 240 sx

Question
i have a 1992 nissan 240 sx/se convertable , couple of days ago we had a lot of snow, after that day my car rear windows and heater is not working at all, their is no noise also ,please tell me what to do to fix it thanks

Answer
Irfan,

The rear window heater circuit has a couple of things that make it work.  There is a switch, a relay a fuse the grid itself and the wiring.  You should check the back glass to make sure the wires have not broken off.  This is a common problem.  A fuse could blow due to an overload or the switch could be defective.  Start with the fuse first and then the back glass and wiring.  If you have a volt/ohm meter or a test light it would help finding out where you are getting current.