Home >> Volvo >> 2014 >> XC90 3.2, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 13 Of 13 >> ECM-U012086: Lost Communication With Starter/ Generator Control Module. Bus Signal / Message Failures. Signal Invalid (B6324S5; 2011-2014) >> Fault-Tracing Information