visor lights wont come on

[windowrattler]

I just did some cab lights on a with a power probe. Hooked the power probe signal generator into the bad wire at the light and used the tracer to follow the wire through the interior. It ended up being a loose connection on the headlight switch. The tracer set up can be a little tricky the first times you are doing it. Find a short you tube video of how to use it.