Home >> Volvo >> 2008 >> S80 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) Diagnostic Trouble Codes - 10 Of 11 >> ECM-U012987: Lost Communication With Brake System Control Module. Bus Signal / Message Failures. Missing Message (B6324S5; 2011-2012) >> Troubleshooting Information