Door Lock Problem

[mbzjag8090]

Hi, I've replaced the passenger side door handle because the tumbler was busted. All door locks function as desired including the trunk and fuel door via the drivers side door lock. However, when I lock the door on the passenger side it doesn't engage with the entire system. Only the passenger door locks. It seems odd that the driver's side door lock actuates the system properly but not the passenger side door... Any thoughts?