This procedure will clear all error codes and reset the ECU back to factory settings. It must be done after a battery disconnect. 1. With the doors closed and the wheels at dead center, start the car. 2. Turn the wheels all the way to the left, then all the way to the right, then back to dead center. 3. Now shut the car off and remove the key, and do not do ANYTHING for at least 2 min. 4. Start the car and confirm that there are no errors. *Any persisting/current errors will resurface withing a day or two, if not immediately.