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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 >> P0705-Transmission Range Sensor "A" Circuit (PRNDL Input) >> 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 transmission range is invalid for any given gear. The Transmission Range Sensor (TRS) is part of the TCM and cannot be replaced separately.