Bosch Gen 4 Motor Failure Symptom Verification

To confirm a motor failure, observe the system behavior: check if the display fails to power on, if the system shuts down immediately after activation, if there are intermittent power cutouts during riding, or if a specific numeric error code (e.g., 500, 503, 422) is displayed. Perform a 10-second hard reset by powering off the system and waiting, then observe if the error persists upon restart.