I was given this diagnostic code from Pep Boys, P0117 what does it mean please? on 2003 Kia Sedona

I was given this diagnostic cose from Pep Boys, P0117 Please let me know what it meass

Asked by for the 2003 Kia Sedona
p0117 is engine coolant temperature sensor low input.replace the sensor.
I have replace my cooler temp sensor, but when I start the engine the service engine light came up and the temp light too. I hook up my scanner and came up P0117. What do you think should the problem be?