P0604 — Internal Control Module Random Access Memory (RAM) Error

Q: What does fault code P0604 mean?

P0604 means: Internal Control Module Random Access Memory (RAM) Error. It is a Powertrain (engine/transmission) fault code defined by the OBD-II standard.

Q: Can I keep driving with P0604?

With P0604 you can usually drive home and book an inspection within a few days unless the car feels abnormal.

Powertrain (engine/transmission)

Internal Control Module Random Access Memory (RAM) Error

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Can I drive with P0604?

You can usually drive home and book an inspection within a few days.

Frequently asked questions

What does fault code P0604 mean?

P0604 means Internal Control Module Random Access Memory (RAM) Error.

Can I keep driving with P0604?

You can usually drive home and book an inspection within a few days.

Related fault codes

P0600 — Serial Communication Link Malfunction
P0601 — Internal Control Module Memory Check Sum Error
P0602 — Control Module Programming Error
P0603 — Internal Control Module Keep Alive Memory (KAM) Error
P0605 — Internal Control Module Read Only Memory (ROM) Error
P0606 — ECM/PCM Processor Fault
P0607 — Control Module Performance
P0608 — Control Module VSS Output 'A' Malfunction
P0609 — Control Module VSS Output 'B' Malfunction

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