DTC P0602: PCM Programming Error Honda Odyssey IV

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ). This DTC is indicated when a PCM update is not completed. Do not turn the ignition switch to LOCK (0) or ACC (I) while updating the PCM. If you do the PCM can be damaged.

1. Do the PCM update procedure (see PCM UPDATE ).
2. Check for Pending or Confirmed DTC's with the HDS. Is DTC P0602 indicated? YES -Replace the original PCM (see PCM REPLACEMENT ). NO -The update is complete.