Re: Passenger License plate light no power?? Oh damn.
Guessing, no personal experience. Since the trunk wiring has to go into the body I would expect that the problem is at the hinge line where a wire has a kink. When you raise & lower the hatch the wire gets rotated & makes contact at various angles. Of course the wiring is inside of the rubber sleeve which makes it difficult to access. I have never had to get inside the sleeve. Good luck with this one. Please report the repair.