2001 Durango 4 Wheel Drive not working

I have no lights on the 4 wheel drive control knob, and the 4 wheel drive is not operational. Is there a fuse that controls the operation?

Take To Dealer There Is A Recall On That And Its Free They Reprogram It Before You Go Pull The Dash Panel And Make Sure Its Connected Correctlyit Ahs One Little Plug And It Can Come Loose