I have used a DAG3 and checked diagnostic trouble by one.
It has displayed diagnostic trouble code c1643.
The vehicle clattered when I accelerated after U-turn or left,rignt-turn.
I found out "Yaw rate sensor fault". so I requested a mechanic customer service.
He was well unknown about the symptom.
So Acquaintance checked my car and it could be repaired.
Acquaintance has resetted diagnostic codes and now it is good.
http://cafe.naver.com/dag2012