Hello, about 2 months ago I added a Phaeton bj.2007. Now my problem opens my trunk and no longer closes. The wire harness is fine it was clamped for about 10 minutes both batteries and pressed the brake for 10 minutes and the light was also on. I also read it out no error message. It can only be opened with the hand when I open the key for trunk then flash up the turn signals 2 times and that was it. The wire harness wu rde already repaired by the predecessor .. Can someone help me