Seems to be a common problem.
Mk4 jetta door lock module.
How to remove door lock module from a vw golf mk4 jetta bora in 14 steps.
The most common problem is failure of the microswitch or circuit board inside.
I also went through getting a dea.
The door lock assembly module uses an electronic solenoid to unlock the door.
Romanian romania english united states among the things that will brake eventually after 10 years on a vw model include the door lock module.
But to change this door lock module by yourself first you need some tools.
The door either thinks it s open or closed all.
Here is a vid i made on fixing vw golf mk4 door locking mechanisms or rather replacing them.