"OEM" Switch always on?

I purchased some "OEM" switches from a vendor, and have the active one (Prinsu light bar) wired like I think I'm supposed to, but the light stays on, even when power is off to the truck (battery still hooked up.)

What user error am I committing here?

Wiring from Switch harness:
red/yellow closest to black ground = fuse panel underneath steering column
Black = black ground (to relay)
red/yellow away from black = power from relay
green = switch power to relay

 

Sounds like you tapped a fuse that is always on regardless of key state.

 

Yeah that sounds pretty likely. It was the empty one:



Should I just move it to one of the other fuses that's a lower draw?

 

No, you should move it to a fuse that only receives power when the ignition is on. Hold on let me look

 

Check out this thread. https://www.tacomaworld.com/threads/tapping-the-dash-lights-circuit.413945/

some people are saying tap the "panel" fuse others are saying to pull power from a nearby switch that has power when the dash lights are on.

 

Cool, thanks! I came across another thread similar to that one, but there was a lot of confusing info on there. I'll try this tomorrow when I have some light again.

 

Yep, that did it! Thanks!