Home >> Volvo >> 2009 >> S60 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) - Diagnostic Trouble Codes And Associated Procedures - 9 Of 14 >> ECM-620D: Engine Cooling Fan (FC) Control Module. Signal Too Low (B5204T5; B5254T4; 2005-2007) >> Signal Too Low