Technical Definition:

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

Trouble Code: P0604
Address: 0x0604
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Internal Control Module Random Access Memory Error

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Loose or poor battery terminal connection
– Low battery charge
– ECM power supply circuit is open or shorted
– ECM Programing
– Faulty ECM

Specific Makes:

– Engine may not start

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