P0604
Internal Control Module Random Access Memory Error
Generic code
Computer Output Circuit
High severity
Hard repair
Free on OBD DashX
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What P0604 means
- “The fault code P0604 indicates that there is an internal error in the engine control module (ECM) that is causing the RAM to malfunction. This can result in a variety of issues with the vehicle's performance.”
Possible symptoms
- Check engine light is illuminated
- Reduced engine power or acceleration
- Engine misfires or stalling
- Rough idle or poor drivability
Possible causes
- Damaged or faulty internal components of the ECM
- Malfunctioning sensors or actuators that are connected to the ECM
- Electrical short circuits or other wiring problems
- Low battery voltage or other power supply issues
Related parts
- Engine Control Module (ECM): ECM is the part of the car computer that controls the engine system and performance. Problems lead to poor fuel economy, engine stalling & unwanted engine vibrations
Possible solutions
- Replace the ECM if necessary
- Check and repair any damaged sensors or actuators connected to the ECM
- Inspect and repair any wiring issues or electrical short circuits
- Address any low battery voltage or other power supply issues
Free on OBD DashX
P0604 on OBD DashX
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