Key Fob

question about my key fob
it will unlock but not lock,, same on all 3
what needs to be done, Thanks Ken

 

Does it beep when you try to lock, or is it totally non responsive?

 

The BCM is seeing a door OPEN, check all your door switches for one of them not working correctly. DOOR CLOSED = Switch OPEN or Not grounded.
When a door is OPEN you can't lock the truck with the remote, and the door switch will be disabled from locking (will lock, then immediately unlock) if the truck is running. Being all 3 remotes are doing this that'd be my guess.

 

My 2005 key fobs stopped working a while ago. Well I’ve learned a lot troubleshooting this. Including how to get your truck into program mode and that if your key sensor is not working in the ignition and is not beeping when you insert the key, it will not go into program mode.

Anyway my issue is my fobs are intermittently working. Sometimes lock works, sometimes it doesn’t sometimes unlock works sometimes it doesn’t.