Where is the temperature sensor on a 2003 jeep liberty on 2003 Jeep Liberty

Where is the temperature sensor on a 2003 jeep liberty,and how to tell if it is defective.

Thanx for any advice
Ron

1 answer
need a scan tool to monitor the engine temp to verify. did it set a code?? if it did with a 128, thermostat is most common failure.

Roy