Relay on aux for turn off/on led (Servo to aux)

Hello guys.
I need help with relay.

I use now arduplane 4.1.6

Configure aux port well. And i have low/ hight relay 1.7v and 5v on ground and signal

But when i have 5v on my aux - led not work.
Can u help me with this problem?

Didn’t understand exactly what do you mean by this, but from what I understood, you’re trying to turn a LED on/off directly by your AUX Pin right? It is not recommended, these pins are for low current applications only, you will not light up your LED and probably will burn your port trying to do it. Please use some kind of power driver instead.