Home >> Volvo >> 2004 >> V40 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 3 Of 3 >> ECM-Dd: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T2 CVVT; 2000) >> Faulty signal. Intermittent fault