Back-up light wiring

[kamoo]

I did the same thing when wiring mine up. It drove me insane, I thought it was because I switched to LED backup lights... then I figured what the heck Ill turn the key on and it worked. I went with a combined stop/turn/tail and used a trailer converter box and after nice and neatly wiring it all up they did not work. Tore it out, redid it, still no work. So a mechanic friend of mine rewired it for the fourth time, scratched his head for a bit and then found a harness up front was disconnected on accident during the build. It was a great experience in wasting a few hours of my time and someone elses.

[the_experience03]

I'm not entirely sure how mine could be wired the way it is, but same deal, Smitty...my reverse lights won't come on KOEO. It HAS to be KOER and I can't fathom why or even how it is wired as such. That's an easy enough thing to do in a PCM controlled car (though WHY?!?), but I'll be perfectly honest...I have no idea how it was done on my bus with a mechanical diesel.