Diesel Data: Automotive Repair

P0602

DTC P0602: ECM Programming Error

NOTE:
- This DTC is indicated when the ECM update is not completed.
- Do not turn the ignition switch OFF while updating the ECM. If you turn the ignition switch OFF before completion, the ECM can be damaged.
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

1. Do the ECM update procedure.
2. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0602 indicated?

YES - Replace the original ECM.

NO - Updating is complete.