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Home >> Fiat >> 2012 >> 500 Pop, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 ((Transmission Control Module (TCM) - Electrical Diagnostics)) >> Diagnosis And Testing >> P0601-Internal Control Module Memory Checksum Error >> Theory Of Operation

Theory Of Operation

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The Transmission Control Module (TCM) performs basic system checks to ensure proper controller operation. This Diagnostic Trouble Code (DTC) sets if the value of check sum calculated after Ignition ON is different from the correct check sum value stored in flash ROM.

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