My left rear passenger door doesn't open from the inside or outside. I got the door open by removing the door panel from the inside and reaching inside to release the latch, but I couldn't remove the lock mechanism fully to examine it and see what the problem was. I've removed the front right passenger lock, but the rear one is built a little differently because of the child lock. Does anyone have any advice as to how I can get the lock out of the door completely? Is there a manual or something I can buy that will tell me how I can do it? I removed all the necessary screws etc so I'm not sure what else to do...