Optima V6-2.7L VIN 8 (2006)
MANUAL MODE ECU UPGRADE PASSWORDS
7. When the GDS tool reports that the ECM upgrade has been successfully completed, click OK, turn OFF the ignition key, and wait at least 10 seconds
before attempting to start the engine.
8. Check for Diagnostic Trouble Codes using the GDS and erase any DTCs stored due to CAN-Line communication during reprogramming.
