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 the ECM update is not completed. Do not turn the ignition switch to ACC (I) or to LOCK (0) while updating the ECM. If you do, the ECM can be damaged.
- Do the ECM update procedure (see «ECM UPDATE»(ref-351945-S31385529132009122900000) ).
- Check for Temporary DTCs or DTCs with the HDS. Is DTC P0602 indicated? YES -Replace the original ECM (see «ECM REPLACEMENT»(ref-351945-S35124653042009122900000) ). NO -The update is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.