DTC Troubleshooting

DTC Troubleshooting: P0606, P0606

DTC P0606:

ECM/PCM Processor Malfunction

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Initial Inspection and Diagnostic Overview.

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0).

4. Turn the ignition switch to ON (II).

5. Wait 40 seconds.

6. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P0606 indicated?

YES -

Go to step 7.

NO -

Intermittent failure, the system is OK at this time.�

7. Update the ECM/PCM if it does not have the latest software ECM/PCM Update (M/T), or substitute a known-good ECM/PCM.

8. Turn the ignition switch to LOCK (0).

9. Turn the ignition switch to ON (II).

10. Wait 40 seconds.

11. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P0606 indicated?

YES -

If the ECM/PCM was updated, substitute a known-good ECM/PCM, then go to step 8. If the ECM/PCM was substituted, go to step 1.

NO -

If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM Service and Repair. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.�