I have problems with ac dosent work in the back the control is good and I check on 2004 Chevrolet Tahoe

all the fuses and is ok went I push the button in back control say off somebody help me

Asked by for the 2004 Chevrolet Tahoe
Is the master control in the front properly set? Do you have the owners manual?
yes but in front is okthe upper control don t send signal to the back module
Recheck fuses!