WHEN I PUSH POWER LOCK BUTTON THE DOORS LOCK AND IMMEDIATELY UNLOCK WHY?

Owner, A Technician would have to access the vehicle's on-board Body Control Module codes & Data in order to diagnose that issue. I would say the BCM is being driven to that strategy due to a faulty switch input, such as a door latch internal switch, and the BCM is doing what it is supposed to do with that input.