Windshield wipers not working
 

Hello all, I have a 2008 Tahoe and we cannot get the wipers to work. We already changed out the wiper motor, as well as the actual wiper switch inside. We have also checked all the fuses and no luck. Anyone have any idea what it could be?? Thanks for your help

its a mux circuit so any changes in resistance will create problems. Ohm check all the wires from the switch to the motor.