DTC P0604 Internal Control Module Random Access Memory (Ram) Error
DTC DETECTING CONDITION:
- Immediately at fault recognition
- GENERAL DESCRIPTION < Ref. to DTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR , Diagnostic Trouble Code (DTC) Detecting Criteria. >
TROUBLE SYMPTOM:
- Engine does not start.
- Engine stalls.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode < Ref. to
OPERATION , Clear Memory Mode. > and Inspection Mode < Ref. to
PROCEDURE , Inspection Mode. >
WIRING DIAGRAM:
PROBLEMS DIAGNOSTIC CHART
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK FOR ANY OTHER DTC ON DISPLAY. | Does the Subaru Select Monitor or general scan tool indicate DTC P0604? | Replace the ECM. < Ref. to ENGINE CONTROL MODULE (ECM) . > | A temporary poor contact. |