Monitored & Set Conditions
WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
Engine Coolant Temperature (ECT) sensor circuit is monitored with ignition on and battery voltage greater than 10 volts. DTC will set if ECT sensor voltage at the PCM is greater than 4.96 volts for more that 2.6 seconds. This is a one trip fault.