My passenger side sliding door handle was broken from outside. So, I purchased one and installed it as described on youtube. I had a similar problem a few years ago and I successfully replaced the same door handle. But, this time, after installing exactly the way it was instructed, I found the door is not locking, either from outside or from inside. It does not even react with the on-off lock button that is located on the driver or passenger side door. There is electrical wiring with a modular connector which I have checked and it looks fine. What am I doing wrong? Can anyone help me figure out the problem and advise? Thanks a Lot in advance.