Control System

DTC Troubleshooting: U0300

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 Initial Inspection and Diagnostic Overview.
- Do not turn the ignition switch to ACCESSORY (I) or to LOCK (0) while updating the PCM. If you turn the ignition switch to ACCESSORY (I) or to LOCK (0) before completion, the PCM will be damaged.

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

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.�