Rear Door Locks On A Gmc Sierra Wont Unlock

I can hear the mechanism in the door moving but the lock wont open or close.

Rear door locks on a gmc sierra wont unlock.

Same relay in both positions so you can swap them and see if the problem reverses door locks but won t unlock. The front passenger door lock on my 2014 silverado is not working. For some reason or another my back doors are starting to have a mind of their own. I exit the truck shut the door and hit the lock button on the remote key fob.

My owners manual shows left doors but it doesn t say anything about right doors. Definately sounds like the lock relay. If the truck sits for a period of time hour or longer it seems to work but not always. Those are the lock and unlock relays.

My gate is unlocking and the front doors unlock. More the likely it is a stuck relay contact or bad relay. Please share how. I also have to press unlock twice for the front passenger to unlock all the way.

The drivers door remains unlocked yet the security system is arme. A closer looks it seem power gets reversed on the door latch coils to lock or unlock so both relays must be fully working no stuck contacts and the diodes must be good for the system to work. All doors except the drivers door lock the lights flash and the horn chirps for the alarm. All other doors are ok but the driver door doesn t unlock half of the time.

Sometimes they ll unlock other times they won t. I ve hit the unlock button from the driver door and on my key fob multiple times and they still won t unlock. The rear doors on my crew cab gmc sierra won t unlock or lock. Before going through the process of replacing the actuator i want to make sure it hasn t just.

Its just the rear doors though. Has anyone had this problem before or heard of this. Im having a frustrating issue with my 2014 sierra 1500.