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DTC P0601: Notes

DTC P0601 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0601 PCM memory check sum error
DETECTION CONDITION 
  • PCM internal memory check sum error
  • PCM has internal abnormalities

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • PCM has internal abnormalities
  • MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • PCM internal memory malfunction