Home >> Volvo >> 2002 >> S60 Base, 2.4 61, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) - Diagnostic Trouble Codes And Associated Procedures - 2 Of 14 >> ECM-2000: engine COOLANT TEMPERATURE (ECT) SENSOR. FAULTY SIGNAL (B5204T5; B5254T4; 2004) >> Faulty signal >> Replacing the thermostat and engine coolant temperature (ECT) sensor >> Replacing the thermostat