Home >> Volvo >> 2007 >> S40 Base, 2.4 38, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 6 Of 10 (544 Body) >> ECM-433D: Leak Diagnostic Unit, Pump. Signal Too Low (B5254T3; 2005-2007) >> Signal Too Low (2005)