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P0604

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P0604 OBD-II Trouble Code: Internal Control RAM Error
P0604 means an indication of an internal memory fault which may be cause by a faulty fuse, low battery or faulty ECM power supply circuit wiring.

Related questions

Question
How to replace ECM on a car with a P0604 code
P0604 is an internal memory error in the ECM. It will need to be replaced. It may be possible to get a pre-programmed ECM for you to put in, but this would be a question to pose to your local...
Question
P0604 code pops up. Check engine light is on and p2107 p2110 and u0100
Hi there. The code U0100 means that the ECM (computer) has lost communication. Check the battery and the battery cables and make sure that they are in good condition. Check the ground wires to the chassis and to the fuse...

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