Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
P00B3
Radiator Coolant Temperature Sensor = Warmer than 149°C (300°F) - For greater than 5 s
P00B4
Radiator Coolant Temperature Sensor = Colder than -39°C (-38°F) - For greater than 5 s