ATG EPS Mode D'emploi Et Entretien page 11

Power steering parts
The testing bench verify if the DC voltage is inside the range from 12Volt to 15 Volt, if it is out of range the following two message will
appear (Low voltage or Over voltage):
The DC voltage is set by means of DC power supply unit and a 100Ah Battery. You can adjust the voltage acting on the potentiometer
located in the power supply unit. We suggest to set it between 13Volt and 13.5 Volt.
When you click over 'ON' button in the 'Ignition key' box the bench start the dialog with EPS ECU.
It checks first if there are errors so relevant to switch the red light in the car and this condition is showed in the 'Error' box. There can be
a red light or green light.
At the same time the reading of the total list of errors is showed in the 'Calibration' box.
In this box you can find a button that is used to delete the errors in the ECU. If the error after clicking over 'Delete' are showed again
means that they are actual error and they are
ATG - Eps Testing system
ACTIVE in this moment. All the errors are deleted but the ACTIVE errors comes back and are showed again.