DTC Troubleshooting: U0302(A/T System): Notes
DTC U0302 : Software Incompatibility With Transmission Control Module
NOTICE:
- Before you troubleshoot, review the How to Troubleshoot .
- Do not turn the vehicle to the OFF (LOCK) mode while updating the TCM. If you do, the TCM can be damaged.
NOTE:
This DTC is indicated when the TCM update procedure is not completed.