I have the base model of the Classic Silverado; no power windows or power locks. Recently I was checking out my truck and I pulled on the passenger door handle to confirm that my truck was locked (I have a key clicker and I am paranoid about security). My passenger door opened, and the car alarm goes crazy. I shut the door, use my clicker, and the truck is locked..... but only the driver side door :grrrrrr: So basically my passenger side door cannot be locked by my clicker anymore. It can be unlocked, but not locked. Now I have to manually reach over and lock the passenger side door and THEN arm the alarm. How can I fix this and what is wrong? The passenger side door used to always lock just fine.