Home >> Volvo >> 2007 >> V50 Base, 2.4 39 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control Module (TCM) Diagnostic Trouble Codes - 1 Of 2 >> TCM-0023: Transmission Input Speed Sensor. Signal Missing (Aw50/51 AWD; 2005-2010) >> Diagnostic Trouble Code (DTC) Information TCM-0023 >> Signal Missing