The wiring going from the body through the hatch has broken and two wires are touching together causing your issue.
My solution was to go to the junkyard and get a 2 foot section of the hatch wiring from inside the car, cut the bad section out of your car at the accordion looking piece and use the junkyard wiring to go through and splice it back together. Hopefully all the colors should be the same which will help so you don't match up the wrong wires.
My solution was to go to the junkyard and get a 2 foot section of the hatch wiring from inside the car, cut the bad section out of your car at the accordion looking piece and use the junkyard wiring to go through and splice it back together. Hopefully all the colors should be the same which will help so you don't match up the wrong wires.