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Home >> Dodge and Ram >> 2009 >> Durango Base, 3.7 K >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Powertrain Control Module (Pcm) - Electrical Diagnostics - 545RFE) >> DTC Troubleshooting >> P0604-Internal Control Module Ram >> Theory Of Operation

Theory Of Operation

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After the controller is reset (ignition turned to the RUN position), the microprocessor checks the integrity of each RAM location by writing to it and reading back from it. The read value should be same as value written.

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