My father-in-law has a 1995 1/2 ton Z71. The power locks are all jacked up. We can not use the key, the power button, or even manual power to lock or unlock either door. He cannot find his key fob, but we should still be able to lock the truck. I disconnected the negative battery cable for 15 minutes thinking it might re-set something but that did not work. His dome light does not work when you open the doors either. Then he called me last night and said that his wipers are not working. All of the fuses are good, and from what I could tell the fusable links were good too. Any suggestions. Thank you!