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6.7L Power Stroke – Engine Coolant Temperature 2 (ECT2)


The ECT2 sensor is a 2 wire thermistor-type sensor. The PCM applies 5 volts to the ECT2 sensor circuit. The sensor changes the internal resistance as the coolant temperature changes.
The PCM uses the ECT2 sensor to monitor EGR cooler effectiveness by measuring the amount of heat being
absorbed by the coolant.
The ECT2 sensor Measures coolant temperature in the powertrain secondary cooling system.
IDS: ECT2 (temperature) and ECT2_V (volts)