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 circuit voltage at PCM is less than 0.5 of a volt for more than 2.6 seconds. This is a one trip fault.