Home >> Volvo >> 2008 >> S40 T-5, FWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Central Electronic Module (CEM) Diagnostic Trouble Codes - 8 Of 10 (544 Body) >> CEM-De11: Communication With ECM Control Module. Signal Missing (B5254T3; 2004-2007) >> Signal Missing >> Overview