Rear window switches

[Yakfish75]

Hey guys new to the forum.
On my 2007 Tahoe, both rear windows roll down fine with the rear window switches but they do not roll up? Any ideas??? Thanks in advance

 

[Nabes04Tahoe]

Find a wiring diagram for the window circuit. Take the switch out of the door and leave it plugged in. Find out which wire is up and down. When you have the switch in the upward position find out if there is proper voltage on that wire. If not more than likely the contacts in the switch are bad. If the switch is good, then you need to remove the door panel and see if it is a broken wire or if the motor itself is bad.