This sliding door will not open unless I go in through the inside and pull on a rod. Outside handle doesn't help. Once I can get it loose the door slides just fine. So the door does not seem to have a tracking problem. Often though when not closed all the way the door had to be bumped to close it all the way. The latch is at the rear of the door - not up at the passenger side seat. What I think I ned to find is some instructions that will tell me how to reach that latching mechanism from the inside of the door. I can't tell whether there is something broken or not. I would appreciate any help.

Thanks in advance.