4 wheel drive problem

[Retiredonce]

Hi Folks
I have a 2013 Ram 1500 Sport 5.7 hemi
My 4wd drive has no lights at the switch (5position selector with neutral button). I am not getting any trouble lights either although on start up all the lights work (service 4wd) but then goes off. Nothing happens when I turn the knob all the fuses are good. Any ideas I’d appreciate them. Gerry

 

[Jeepwalker]

I assume you mean, you've tested the 4x4 and it's not actually engaged/working?

 

[Retiredonce]

Nothing happens. Is there a way to test the selector switch