When I lock my doors the lock button on the passenger door only goes down about half way. If you try to open it while locked it will come partially open. Acts like it is only half locked, the other three doors work fine. Never had one of these doors apart so not sure whats happening. Thanks for any advice anyone might have.

Thanks

 

You will have to remove the door panel to see what the problem is. There might be a bind or the actuator is going bad. A few drops of oil might also correct the problem.