If the ECU is "bricked" (unresponsive) or if your tool lacks Bench Mode authorization for the TC1724 processor, you must open the cover to access the circuit board (PCB).
Check for exactly 12V at the Ignition Pin when the key is turned on. Next, test continuity on the CAN-H and CAN-L pins from the ECU connector directly to the OBD2 port. 17c61 ecu pinout
If your chip-tuning hardware displays a "Communication Error" or "ECU Not Found" prompt: If the ECU is "bricked" (unresponsive) or if