AUX Switches

[Roush Rap]

I hooked up all my AUX switches today on my truck. For some reason switch 3 isnt working light comes on but now volts at the wire. Fuse & relay are good. Any ideas.

 

[TheJoker]

Maybe a bad connection at the switch, I would start there, or a bad connection where the wires go through the firewall. See if you can test for a short between the switch and engine compartment. If that males sense.