Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> AEM, CEM & Rem Diagnostic Trouble Codes - 4 Of 12 >> CEM-1A61: Communication With The Transmission Control Module (TCM). Signal Missing (Aw50/51 AWD; Aw55-50/51SN; 2004) >> Signal missing