DTC Troubleshooting

DTC Troubleshooting: 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. Reading and Clearing Diagnostic Trouble Codes

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 or substitute a known-good ECM/PCM. Reading and Clearing Diagnostic Trouble Codes

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, Reading and Clearing Diagnostic Trouble Codes 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.