FixVault

DTC P0602: ECM/PCM Programming Error

WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. 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 an ECM/PCM update is not completed.
  • Do not turn the ignition switch to ACC (I) or LOCK (0) or do not press the engine start/stop button while updating the ECM/PCM. If you do, the ECM/PCM can be damaged.
  1. Do the ECM/PCM update procedure (see ECM/PCM UPDATE  ).
  2. Check for Pending or Confirmed DTCs with the HDS.

    Is DTC P0602 indicated? 

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

    NO  -The update is complete.