Hello,
i was out driving then the engine whent off and on just for a half of a second. It happen many times.
I saw the light for DSC also whent on and off in the dashboard.
I turned off the DSC and the engine runned fine.
I have a hawk eye instrument and that showed no errors. So i think the problem is a sensor for the DSC control.
Does anyone hav a clue about this ?

Hi! I have had an almost similar problem some time ago. The HawkEye did not flag any DTC. I don't remember if the dash light came on. (this happend about two years ago) It turned out to be the crank sensor. It is cheap and easy to replace.
(Just don't buy it at the stealer.)
If you havent done so you should upgrade your HawkEye to version 7.0 This gives you a completely "new" tester.

edit: fault can not be crank sensor as it follows DSC switch on/off constantly.

Thanks for help,
it was the speed sensor on left front wheel that had bad connection.
All good