k4mik4ze

We checked the power on each line (at the plug) and on the left there was nothing. Then we replaced the Wire. Is not so hard, but you need support and maybe 2 hours to fix it. Usually the sensors does not fault because is a pretty simple one.

Basically there is 12V on the line, when the system faults, then there is still a 2-3 Volt check signal. Hope it helps. In the most cases it´s a part of the harness.

I would say there is a pretty simple way to check if its a mechanical or electrical fault.
When the system has a failure, the roof is absolutely not operating.
That means, there is no signal when you pushing the button etc.
Thats also the reason why i was so sure to check the electronic first.
Because at the beginning of the problem i started to disconnect single sensors,
and the symptom was exactly the same like after my broke wire.

Maybe it´s a safety feature of the ECU to stop everything until every of the wires gives a 12V signal back.
So if the roof it´s operating just at the beginnen or something else it could be that the wire has connection in this position but loses it during the movement. Good way to check this, put the root manually to the service position and look if you get a feedback when you pushing the button.

I hope it helped a bit, good luck!