DTC P0604: Internal Control Module Random Access Memory (Ram) Error
WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2012 Lincoln Navigator L, 2012 Lincoln Navigator, 2012 Lincoln MKZ, 2012 Lincoln MKX, and 2012 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.
P0604 - INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR
| Description: Indicates the PCM RAM has been corrupted. | |||
Possible Causes:
|
|||
| Diagnostic Aids: Reprogram or update the calibration. Check for other DTCs or drive symptoms for further action. 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) , Programming the VID Block for a Replacement PCM. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | Refer to the Description, Possible Causes and Diagnostic Aids for the DTC. | ||