DTC Troubleshooting

DTC U0300: PGM-FI System and A/T System Program Version Mismatch

NOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
- Do not turn the ignition switch to LOCK (0) or ACC (I) while updating the PCM. If you turn the ignition switch to LOCK (0) or ACC (I) before completion, the PCM will be damaged.

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

Is DTC U0300 indicated?

YES - Replace the original PCM.

NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTCs troubleshooting.