I have a 1993 lx and the dash lights will come on and off at their own will or when ever you hit a bump. when this happens the turn signal lights will stay on and the bright light will stay on and the wipers will not work. when this happens the dimmer switch will raise and lower the tach a bit and the oil light will dim on and off. I have no clue if it is a short or a faulty regulator. If anyone has any ideas i would love to hear them.