First of all, before any repairs are to be conducted, it is necessary to establish whether there is an electric or hydraulic problem in the equipment. To diagnose a trouble, one must have an understanding on how a transaxle operates and its components, and also access to some unique test equipment. Automatic transaxle problems should be diagnosed at the dealer service department or any other qualified repair facility. Also, do not remove a faulty transaxle until a knowledgeable technician with appropriate tools has evaluated the vehicle because troubleshooting requires the transaxle to remain in place.