DTC Troubleshooting: P0602 (196)
DTC P0602:
 ECM/PCM Programming Error
NOTE:
  • Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
  • This DTC is indicated when an ECM/PCM update is not completed.
  • Do not turn the ignition switch to LOCK (0) or ACC (I) while updating the ECM/PCM. If you turn the ignition switch to LOCK (0) or ACC (I) before completion, the ECM/PCM can be damaged.
  1. Do the ECM/PCM update procedure.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0602 indicated?
YES -
Replace the original ECM/PCM. ■
NO -
Update is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■