If the Check Engine light of your Mazda is on and the scanner shows the P0116 code, it means the ECU has detected the following problem:
"Engine Coolant Temperature Circuit Range/Performance Problem"
Although this is a standardized OBD2 code, the symptoms and the location of the faulty sensor can vary depending on the exact model of your Mazda (year, engine type, etc).
With the CarWatch app you can connect a Bluetooth OBD2 scanner and let our AI analyze the P0116 code by crossing it with your vehicle's history and real-time telemetry.
👉 Diagnose my Mazda for FreeTo clear the engine light and read the P0116 code from your phone, you need an OBD2 adapter compatible with the Mazda ECU.
🛒 View Compatible Scanner on Amazon