Power steering parts
In the 'Receive' box you can see that the dialog is running.
If there are errors inside the ECU of the EPS they will be showed in the 'Calibration' window.
You can decide to use an external diagnostic tester (for example Texa, Bosh, Brain Bee), in this case you have to click over
'Internal/External diagnose'.
'Calibration' box will be disabled and the external tester will be enabled.
ATG - Eps Testing system