Thank you so much! I have located the problem.
I did what you said and jumped the red and the purpel one (in my case it was white) Then the wiper started, so it worked, i found lucas! Now i only need to kill him. After this i measured the resitance from the ignition itself and the purple one was totaly dead. So now i need a new ignition. In the meanwhile i will only use a litle cable between when i drive.
But again thank you! Now i have learned something new!
The onlye problem i see now is on how to change the ignition unit. Anybody knows how?