O.K. here's the deal. My 1991 has never had reverse lights since I bought it 6 months ago. I crawled underneath, but everything looks like it's hooked up to the tranny like it's supposed to be. So, then (with all of your help) I found the switch on the steering column (under the dash) I turned the ignition 'on' , put the tranny in 'reverse' , then tried ratcheting that switch back and fourth, but still, no go. What should I do next? I do have an electrical test light, but I don't even know where to start. I guess my question is, "what is the common point of failure for this system?" Thanks, you guys (and gals) are great!