Wednesday, January 22, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 234

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 234



4. Check resistance between engine coolant temperature sensor terminals by heating with hot water as shown in the figure.



Is the inspection result normal?



YES - INSPECTION END



NO - Replace engine coolant temperature sensor.



P0118



P0117, P0118 ECT SENSOR



Description



The engine coolant temperature sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the 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.