Hello my 03 2500 key fob unlocks all my doors but the drivers and I have to do it manually. Is the sensor in my door not working or what, I’m trying to fix it right now but I’m not seeing any difference.

 

Late to the party here - it is likely a broken wire in the rubber door conduit that runs between the door and the A pillar. You can pull the rubber back and search for the broken wire. It is a somewhat common issue.