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DTC P0606: PCM Processor Malfunction

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
  1. Turn the ignition switch to ON (II).
  2. Reset PCM with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Start the engine, and let it idle for 40 seconds.
  5. Check for Pending or Confirmed DTCs with the HDS.

    Is DTC P0606 indicated? 

    YES  -Go to step  6.

    NO  -Intermittent failure, the system is OK at this time.

  6. Update the PCM if it does not have the latest software (see PCM UPDATE ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ).
  7. Turn the ignition switch to LOCK (0).
  8. Start the engine, and let it idle for 40 seconds.
  9. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P0606 Indicated? 

YES  -If the PCM was updated, substitute a known-good PCM (see SUBSTITUTING THE PCM ), then go to step  7. If the PCM was substituted, go to step  1.

NO  -If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM (see PCM REPLACEMENT ). If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.

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