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HOMESERVICE MANUALSHONDA2008CIVIC SI, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 85 (PGM-FI SYSTEM (R18A1 ENGINE))DTC TROUBLESHOOTINGDTC P0602: ECM/PCM PROGRAMMING ERROR
2008 Honda Civic Si, 4D Sedan

DTC P0602: ECM/PCM Programming Error

2008 Honda Civic Si, 4D SedanSECTION DTC P0602: ECM/PCM Programming Error
WARNING: This page is about a different variant/trim than selected.
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 an ECM/PCM update is not completed.
  • Do not turn the ignition switch to ACC (I) or to LOCK (0) while updating the ECM/PCM. If you do, the ECM/PCM can be damaged.
  1. Do the ECM/PCM update procedure (see ECM/PCM UPDATE  ).
  2. Check for Pending or Confirmed DTCs with the HDS.

    Is DTC P0602 indicated? 

    YES  -Replace the original ECM/PCM (see ECM/PCM REPLACEMENT  ).

    NO  -The update is complete. If any other Pending or Confirmed DTCs are indicated, go to the INDICATED DTC'S TROUBLESHOOTING .

RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.