What is the meaning of OBD-II code P0117, and what are the possible causes and solutions for this code to be generated?

The P0117 code, which is a standard OBD-II code, signals that the engine control module (ECM) has detected an abnormal reading from the ECT sensor. This could mean that the sensor has produced a voltage reading lower than 0.14 Volts or a temperature reading higher than 140°C (284°F). There are several possible causes for a P0117 code, such as: -The ECM received an ECT sensor input of over 0.14 Volts or 140°C (284°F), which means there's a short circuit in the sensor or wiring -Short circuit detected in the ECT sensor or wiring To diagnose the problem, a mechanic will typically conduct a visual inspection and scan codes, reset codes, and check live data to determine the source of the issue, potentially replacing the ECT sensor if needed. The resolution of P0117 will depend on the root cause, but it could involve resetting codes and doing a road test, fixing the ECT connector, repairing wiring, or replacing the ECT sensor.