EMAIL OR CALL WITH ANY QUESTIONS.

THIS UNIT WILL ALLOW YOU TO TEST A CLUTCHLESS DRIVE COMPRESSOR ON THE VEHICLE TO SEE IF IT IS FUCNTIONING AS IT SHOULD OR IF THERE IS A SIGNAL ISSUE FROM COMPUTER OR ELECTRONIC CONTROL VALVE ISSUE.  PLEASE CONTACT WITH ANY QUESTION.  MOST 2006 AND NEWER VEHICLES HAVE DIRECT DRIVE CLUTCHLESS COMPRESSORS AND THIS TOOL IS FOR THEM.  CANNOT BE RETURNED DUE TO PEOPLE BUYING USING THEN SAYING THEY DID NOT NEED IT.