DTC P0602: PCM Programming Error

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. 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 ).
This DTC is indicated when a PCM update is not completed.
Do not turn the ignition switch OFF while updating the PCM. If you turn the ignition switch OFF before completion, the PCM can be damaged.

Do the PCM update procedure (see PCM UPDATE ).
Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0602 indicated?

YES - Replace the original PCM (see PCM REPLACEMENT ).

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