Home >> Volvo >> 2004 >> C70 2.4 63 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control Module (TCM) Diagnostic Trouble Code (DTC) Diagnostics - 2 Of 3 (Convertible) >> TCM-0048 Control Module. Faulty Software (Aw55-50/51SN;2001-2004) >> Faulty software