P0117 CHEVROLET – Engine Coolant Temperature Circuit Low Input

 

P0117: DIY Repairing Video Tutorial

https://youtu.be/0PE930ETa4Y

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0117 CHEVROLET Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light)  

P0117 CHEVROLET Possible Causes

  Low engine coolant level,Faulty Engine Coolant Temperature (ECT) sensor,Faulty engine coolant thermostat,Engine Coolant Temperature (ECT) sensor harness is open or shorted,Engine Coolant Temperature (ECT) sensor circuit poor electrical connection  

P0117 CHEVROLET Description

  The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.