Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSSUBARU2004OUTBACK BASE, 4D WAGON, EJ251, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE (DIAGNOSTICS) (H4SO)DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODESDTC P0604: INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERRORTROUBLE SYMPTOM
2004 Subaru Outback Base, 4D Wagon, EJ251, Standard
DTC P0604: Internal Control Module Random Access Memory (Ram) Error: Trouble Symptom
2004 Subaru Outback Base, 4D Wagon, EJ251, StandardSECTION Trouble Symptom
- Engine does not start.
- Engine stalls.
CAUTION:
After repair or replacement of malfunctioning parts, conduct Clear Memory Mode. Refer to
CLEAR MEMORY MODE . Refer to
INSPECTION MODE
.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.