| Description | Indicates the powertrain control module (PCM) RAM has been corrupted. | ||
|---|---|---|---|
| Possible Causes | Module reprogramming Aftermarket performance products. Damaged PCM | ||
| Diagnostic Aids | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | Reprogram or update the calibration. Check for other DTCs or drive symptoms for further action. Make sure to check for aftermarket performance products before installing a new PCM. If it is necessary to install a new PCM, refer to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . | ||
P0604 - INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR