FixVault

DTC P0604: Notes

DTC P0604 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES

DTC P0604 PCM random access memory error
DETECTION CONDITION 
  • PCM internal random access memory error

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2/Mode12) is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • PCM internal RAM malfunction