The left highbeam in my 94 Sentra is not working most of the time. I've replaced bulbs and even the socket for that light. I checked the wire with my test light and all I got was nothing to a slight glow as I followed the wire back to the right side. At that point the harness disappears under the fuse box so I couldn't follow it further. I searched "sentra headlight" on this site and the best I could find is that the headlight switch may be bad. Has anybody else dealt with this problem? How tuff is it to replace? Where is it? Is there a relay? Is it wired from the switch on the steering column separately for left and right sides? Anybody have a diagram for this car? My local junk yard has a car I can take the switch from if I know where to look.