GPEC2A
This method requires to open the engine ECU. The connection is made on the ECU printed circuit board (PCB).
The engine ECU is removed to process a "patch" in order to unlock operations via OBD. Then, the ECU just needs to be installed back in the vehicle. Reading and writing are then available via OBD.
Reading and deletion of generic Diagnostic Trouble Codes (DTC) through the OBD-II socket.
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