The Konnect Kables Diagnostic Cable is designed for the Isuzu 4JJ3 ECU, a lot of tuners are now having issues with the most recent 2024 models and this is the solution. This cable is specifically made for the Isuzu 4JJ3 ECU but will also work with the 4JJ1 and direct to ECU tuning is safer and more stable than via OBD.   The cable comes with a 1-year warranty. This cable is an essential tool for any mechanic or technician who needs to diagnose issues with their vehicle.