P0604: Internal Control Module Random Access Memory (RAM) Error
MediumPowertrainEngine Electronics
What does P0604 mean?
P0604 is a diagnostic trouble code indicating "Internal Control Module Random Access Memory (RAM) Error". This code relates to your vehicle's engine electronics and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.
Common causes
- Faulty engine electronics component
- Wiring or connector issue in the related circuit
- Failed sensor providing incorrect readings
- Software/calibration issue requiring ECU update
- Related component causing secondary fault
What should you do?
Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.
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Code P0604 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.