chicken lights

Did you pay yer light bill this month?

 

Did you check the terminals on the back of the switch? Sometimes they come loose...power coming in, but not going out. So many variables with old factory wiring...I use to leave that up to someone more capable when I owned a 379...didn't want to fool with it.

 

Get a test light and start checking for power

 

Connections get salted and corrosive. May need pull em apart clean and reconnect. Or could be a bad fuse?

 

Also depends on who installed them. I've seen set-ups that range from "How can this even work" to "How did this not fry the entire electrical system"

 

Start checking to see if the grounds have a good contact that are part of that wiring.