I HAVE THE SAME PROBLEM WITH MY R33 GTS-t 4 Door - There is a timer box between the switch & the relay that often gives trouble -I have yet to find mine ?? Its under the dash somewhere , Also the switch orange light bulbs often give trouble , they are a tiny 12v bulb that can be accessed by levering the top off the switch itself but has to be out of the dash to get to the little clips that hold it in . Maybe it is working but bulb is out??? Good luck , I am still trouble shooting mine???