I have a 2000 yukon that has had no keyless entry for the past month. The receiver behind the instrument cluster has just been replaced, the key fob just got a new battery, and all the fuses have been checked inside the block right next to the door jam on the driver's side. Holding the unlock button, turning on/off/on/off makes the lock move like should but then holding the lock/unlock buttons on the fob don't do anything. Any help is much appreciated.