Home >> Volvo >> 2007 >> V70 Base, 2.4 64 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes (DTC) - 9 Of 14 >> ECM-620D: Engine Cooling Fan (FC) Control Module, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007) >> Signal too low