Is there a FAQ or how-to on the K5 electric rear window?

[trevor73402]

Hey guys,

My rear window on my '84 K5 does not work and I need to get it working so I can use my tailgate and cargo area. I don't even know where to start as far as checking things. I know that the cables and the motors are common problems with these electric rear windows. Is there a FAQ, write-up, or any other type of thread that shows how to diagnose issues with the rear window? How to check the cable? How to check the motor? Its in the up position and won't move. I've taken the panel off the back and can see inside, but don't know what to start looking for.
Any help would be appreciated.
Thanks,