In the event of a malfunction, before proceeding with the repair, it is necessary to determine whether the problem is electrical, mechanical or hydraulic. Diagnosis requires special knowledge regarding the operation and design of the gearbox, as well as special test equipment. Overhauls are not covered in detail in this Guide. Therefore, if there are problems associated with the automatic transmission, it is strongly recommended to contact the specialists of the dealership or other specialized service station.
Do not remove the transmission from the vehicle for possible repairs until a professional diagnosis has been made using the proper equipment. Most checks are performed without removing the transmission from the vehicle.