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U0300

DTC U0300: Program Version Mismatch (PGM-FI system and A/T system)

NOTE: Do not turn the ignition switch OFF while updating the PCM. If you turn the ignition switch OFF before completion, the PCM can be damaged.

1. Do the PCM update procedure (PGM-FI system).
2. Do the PCM update procedure (A/T system).
3. Check for Temporary DTCs or DTCs with the HDS.

Is DTC U0300 indicated?

YES - Replace the original PCM.

NO - The update is complete.