DTC Troubleshooting

DTC Troubleshooting: U0300

DTC U0300:

PGM-FI System and A/T System Program Version Mismatch

NOTE:

- NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Initial Inspection and Diagnostic Overview.
- Do not turn the ignition switch to ACC (I) or LOCK (0)/do not press the engine start/stop button while updating the PCM. If you do, the PCM can be damaged.

1. Do the PCM update procedure for the PGM-FI and A/T systems PCM Update.

2. Check for Pending or Confirmed DTCs with the HDS.

Is DTC U0300 indicated?

YES -

Replace the original PCM Service and Repair.�

NO -

Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.�