On the Rear Passenger door, you cannot open door from inside. I checked the child safety lock, and it is disabled, and even tried the other direction to no avail. Any ideas on what I need to do to fix?

 

It sounds like maybe the pull rod has become detached from the inside handle, or the inside handle itself has broken. I believe you can remove the handle unit by unscrewing the screw that holds it on and pulling it out of the door liner. If that is the problem, it should be fairly clear what's going on and what needs to be reattached or replaced or whatever.