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Home >> Fiat >> 2017 >> 500 Abarth, Automatic Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> (Transmission Control Module (TCM) - Electrical Diagnostics - Fiat 500) >> DTC Troubleshooting >> P0604 Control Unit Faulty (Microprocessor) >> Theory Of Operation

Theory Of Operation

The Transmission Control Module (TCM) performs basic system checks to ensure proper controller operation. This Diagnostic Trouble Code (DTC) sets when the TCM cannot correctly write to, or read from the RAM.



The Transmission Control Module (TCM) performs basic system checks to ensure proper controller operation.

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