I just installed running lights on my ford ranger and the are hella 500's and i can't get them to work i followed the wiring diagram for the switch hook up and nothing is turning on. I have tried to get them on while i have the high beams on and they don't even work then. Any ideas guys?

 

There's a bunch of different threads, here's 1.http://4runners.org/writeups/hella500/index.html

 

We tried to wire up Blake's last time he was out and couldn't get them to work either, although I don't think he had the original Hella harness.

You should be able to take the two wires from the light straight to the battery and see if the light works at all ... not unheard of to have a bad bulb from the factory (not common, but it does happen)