DTC P0604:00: Notes

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