Home >> Volvo >> 2009 >> C30 R-Design, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control Module Diagnostic Trouble Codes - 2 Of 2 >> TCM-0A31: Control Module Communication. Signal Missing From Engine Control Module (ECM) (Aw55-50/51SN; 2007-2013) >> Fault-Tracing Information