CHEVROLET CHEYENNE RUNNING LIGHT NOT WORKING

The Tail Lights, The Lights On My Dash Quit Working All The Fuses Are Good. I Cannot Find Any Broken Wires.

First I Had No High Beams And Low Beams I Change The Light Switch And They Work Now But Now I Don't Have Running Lights Front Or Back

Suddenly, My Tail Lights And Rear Blinkers Quit Working. But Only When I Turn On My Head Lights. They Work Fine If My Head Lights Are Off...