SAS is very important for the safety of the driver and the passenger alike. When the SAS light is on, you can use VD500 to read error codes. Introduction for Ancel VD500 OBD2 Scanner The VD500 OBD2 scanner is specially designed for diagnosing most 12V 16-Pin Fit For VAG Series vehicles, but it also has the ability to work on 12V cars and light trucks (non-electric) manufactured in 1996 or later that are OBD II-compliant with 16-Pin OBD II protocols (J1850 VPM, J1850PWM, ISO9141, KWP 2000 and CAN).
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