[psampson]

Good news! I solved the problem.

The only problem was the wrong VIN in the camera.
If the VIN of the camera, the KAFAS ECU and the car don´t match - the calibration routine in ISTA-D can´t be started. ISTA-D suggests to replace the ECU - what does not solve anything.

I found an action (_steuern_kalibrierwerte_kafas) in KAFAS70.prg to set the calibration data and the VIN in the camera. For the calibration values I used dummy values.

After that I cleared all errors. Then I could start the calibration routine in ISTA-D. After 5min driving the car above 70km/h the calibration was finished and the speed limit info was working.

So the conclusion is: if the VIN´s are not matching, it´s not possible to calibrate KAFAS.