Reverse light range control

Hello dear Audi community. I was last week at the Tüv and there were some mänges found. The lack with the light range control causes me most problems. That’s because it’s upside down. The Audi has Angel-Eyes which were already on the vehicle when I bought it. If I set the controller up on level 3 then it drives up and if I set it to level 0 then it drives down. I now tried to change the cables directly at the actuator but then nothing happened. So off to the plug and try. The end of the song now does not work at all. Probably a resistance has burned through in the controller. Has any of you already had the problem with the wrong light range control and how did he solve the problem? With kind regards Finne 80