Home >> Volvo >> 2004 >> C70 2.4 63 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control Module (TCM) Diagnostic Trouble Code (DTC) Diagnostics - 1 Of 3 (Convertible) >> TCM-0023 Input Speed Sensor. Signal Missing. Permanent Fault (B5234T3, Aw50-42;B5254T, Aw50-42;1999) >> Signal missing. Permanent fault