Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) Diagnostic Trouble Codes - 2 Of 11 >> ECM-2000: Engine Coolant Temperature (ECT) Sensor. Faulty Signal (B5254T2; 2004) >> Faulty signal >> Replacing the component >> Overview