Home >> Volvo >> 2009 >> XC70 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 1 Of 8 >> ECM-B102482: Start Control Unit. Bus Signal / Message Failures. Alive / Sequence Counter Incorrect / Not Updated (B6304T2; 2009-2010) >> Fault Tracing