Chevrolet Code P0116
Chevrolet Code P0116 is an engine coolant temperature (ECT) sensor performance diagnosis trouble code (DTC). It is triggered when the engine control module (ECM) detects a temperature difference at power-up that indicates the ECT sensor is between 30°C and 10 °C warmer than the IAT sensor. Other DTCs, such as P0111, P0112, P0113, P0117, P0118,