Home >> Volvo >> 2004 >> S60 Base, 2.5 59, AWD >> Repair and Diagnosis >> Electrical >> Body Electrical >> Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 4 Of 13 >> CEM-1A62: Communication With The Engine Control Module (ECM). Signal Missing (B5244T5; B5254T2; 2005-2009) >> Signal missing