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DTC P0604:00: Notes

DTC DETECTING CONDITION REFERENCE CHART

DTC P0604:00 PCM random access memory error
DETECTION CONDITION 
  • The PCM internal RAM malfunction.

Diagnostic support note 

  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition in first drive cycle.
  • FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • PCM internal RAM malfunction
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