Can low coolant cause P0117 code?
There are a lot of issues that could trigger the engine code P0117. Below are just some of the possible causes of P0117: Defective engine coolant temp sensor. Damaged or corroded engine coolant temp wiring or connection.
What can cause a P0117 code?
What Is the Cause of Code P0117?
- Rusted/Dirty Engine Coolant.
- Air Pocket in Coolant System.
- Frayed ECT wiring.
- Malfunctioning ECT Sensor.
- Open ECT circuit.
- Faulty ECM.
What is the P0117 code?
P0117 is the OBD-II generic code that indicates the engine control module (ECM) has seen the ECT sensor output go less than 0.14 Volts or more than 140°C (284°F).
What does the p0117 code on a Toyota mean?
If the PCM detects a signal voltage lower than the normal operating range of the sensor then P0117 Toyota code will set. Since this code is for an abnormally low signal to the PCM from the ECT, the PCM saw a excessively “hot” condition in the engine coolant.
What happens to the p0117 coolant circuit low?
As the temperature of the coolant changes, the resistance of the sensor changes. When the engine is cold, the resistance is high. When the engine is warm, the resistance is low. If the PCM detects a signal voltage lower than the normal operating range of the sensor then P0117 Toyota code will set.
What causes low coolant temp in Toyota Prius?
P0117 TOYOTA Possible Causes 1 Low engine coolant level 2 Faulty Engine Coolant Temperature (ECT) sensor 3 Faulty engine coolant thermostat 4 Engine Coolant Temperature (ECT) sensor harness is open or shorted 5 Engine Coolant Temperature (ECT) sensor circuit poor electrical connection
Where is the coolant temperature sensor located on a Toyota?
OBD2 Code P0117 Toyota definition: The ECT (Engine coolant temperature) sensor is a thermistor located in the engine block or other coolant passage. It changes resistance with changes in temperature of the coolant that it’s in contact with.