How to test and replace an oil temperature sensor?
How to test and replace an oil temperature sensor? How to test and replace an oil temperature sensor; P0196 - P0197 and P0198. This sensor detects oil engine temperature and sends that message to the ecm. On the end of the sensor is a thermistor. The resistance decreases as temperature increases. You can quickly test the sensor via digital multi-meter and a hair dryer. When do you need an oil pressure sensor replaced? If your oil temperature sensor gauge does not move or you are getting false readings, the oil temperature sensor in your vehicle may need to be replaced....