Home >> Volvo >> 2004 >> S40 T-5, Automatic >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Central Electronic Module (CEM) Diagnostic Trouble Codes - 6 Of 10 (544 Body) >> CEM-Dd01: (A) Lin Bus 2. Communication Missing (2004-2005) >> No Communication (2006, 2007)