P1116 P1116 definition A P1116 trouble code is related to a vehicle’s engine coolant sensor (https://www.yourmechanic.com/article/how-to-replace-a-coolant-temperature-switch-sensor-by-timothy-charlet) that sends a temperature signal to the engine computer so it can relay a signal to the temperature gauge (https://www.yourmechanic.com/article/3-essential-things-to-know-about-your-car-s-temperature-gauge) in your dash. What...
