Cruise control

Hello again, everybody.

I tried it first about the search function but found nothing accurate there.

So now to the most important, since I am new here I should also imagine exactly:

So I'm Thorben from Cologne, I'm 29 years old, I'm independent in the heating and sanitary industry. As a hobby I like to deal with cars. I have fulfilled the wish of the V8 and am glad about it. I still have one 1985 728i to which up to now my whole attention was applied, but now I want to widow the V8 because he is also correctly admitted more of it.
If you want to know more just ask.

So now to my problem.

The cruise control doesn't work. I read through all the forum entries on this topic and the FAQ and checked a lot.

So when pressing the FIX button (C Tempomat previously activated ) nothing happens. also no click on the glove compartment. I checked the brake light switch and the switch with the hydraulic hose today. Brake light switch does not operate any passage and operates through. The cruise control's turned around. Checked the fuse 26 once, which is i. O. But once I measured voltage at the fuse slot, there is no 12 V. Now, my question, is the power only due to the fuse when you drive faster than 50 kmh? or it can be that the turn signal switch does not release any stoma.

You can help me with that.

Welcome

Thorben