Home >> Volvo >> 2007 >> V70 Base, 2.4 61, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) Diagnostic Trouble Codes (DTC) - 14 Of 14 >> ECM-A03B: Communication, Central Electronic Module. Faulty Signal (B5244S6; 2003-2006) >> Faulty signal