The EGR cooler outlet temperature sensor is a 2 wire thermistor-type sensor. The PCM supplies 5 volts to the EGR cooler outlet temperature sensor circuit. The sensor changes the internal resistance as the temperature changes.
This sensor has a two step pull-up resistor. Notice the two temperature curves with voltage.
The PCM uses the EGR cooler outlet temperature sensor as an input in determining EGR cooler bypass actuator function, cooler effectiveness, turbocharger, EGR, fuel control and regeneration.
IDS: EGRT11 (temperature) and EGRT11_V (volts)