All windows and power door lock stopped working.Fuses are all ok.Any idea what the problem may be?

 

I've never done this but something in the Helm shop manual...
Dash fusebox at left kickpanel, find a socket in top-left, make a jumper wire for that socket.

Key on, put in the jumper
wait 5 seconds
ceiling light will flash an error code
odometer will display a code like B-1234

Then we have to find a list of the error codes, because I sold that Helm book after I sold that car...