FixVault

DTC P0604:00: PCM RAM error: Notes

DTC DETECTION CONDITION & POSSIBLE CAUSES

DTC P0604:00  PCM RAM error 
DETECTION CONDITION 
  • The PCM internal RAM error.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition during the 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