DTC U0300: PGM-FI System and A/T System Program Version Mismatch
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2014 Honda Ridgeline, 2013 Honda Ridgeline, 2012 Honda Ridgeline, 2011 Honda Ridgeline, and 2010 Honda Ridgeline. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see 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.
- Do the PCM update procedure (A/T system) (see UPDATING THE A/T SOFTWARE IN THE PCM ).
- Check for Pending DTCs or Confirmed DTCs with the HDS.
Is DTC U0300 indicated?
YES -Replace the original PCM (see PCM REPLACEMENT ). ■
NO -Troubleshooting is complete. If any other Pending DTCs or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting. ■