2003 Ford Explorer turn signal & hazard lights

I can't seem to get my turn signal or hazard lights to work. I have changed the fuse, relay under the dash, replaced the turn signal assembly & checked to see if there was a fuse I was missing under the hood, but the blinkers or hazard lights still don't want to work. Is there something I am missing. Please let me know what I am doing wrong with this problem & how I can solve it on my own. Thank you for your time in this matter.