All my interior lights are out.

I have power to and from the fuse and it's good.

The wiring diagram shows a relay after the fuse but doesn't label it or show me a location, anyone know more about this circuit?

Thanks!

 

Near the GEM module perhaps?

There is a bank of three relays on the firewall inside the cab directly behind the climate controls but I think those relays are for the horn, parking lamp flasher and fuel pump. I don't have my diagrams handy though....

 

Thanks, what's a GEM module.

I think the relay is one of the three under the steering wheel. How can I tell, I tried swapping them around with no luck.