I follow the last answer where you needed to break the plastic cover at the base of the inside of the hatch. Knowing that the plastic cover was a loss, I use a little more muscle to remove, I suggest a chisel and screwdriver, and a hammer. I came at it from the right looking at the hatch from the inside (driver's side) as there was more room. Switch to trigger the lock was not easy to reach.
Total time about 2.5 hours.
Now I can remove the locking mechanism, and see if there is a short, or if a replacement takes care of it.