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Home >> Acura >> 2009 >> TSX Standard >> Repair and Diagnosis >> Engine Performance >> System >> PGM-FI System (4-CYL) >> DTC Troubleshooting >> DTC U0300: PGM-FI System and A/T System Program Version Mismatch
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DTC U0300: PGM-FI System and A/T System Program Version Mismatch

NOTE:
  • Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION )
  • Do not turn the ignition switch to LOCK (0) or ACC (I) while updating the PCM If you turn the ignition switch to LOCK (0) or ACC (I) before completion, the PCM will be damaged
  1. Do the PCM update procedure (PGM-FI system and A/T system) (see ECM/PCM UPDATE )
  2. Check for Temporary DTCs or DTCs with the HDS

    Is DTC U0300 indicated? 

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

    NO  -Troubleshooting is complete If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting

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