P0195 Code: Meaning, Causes, and Symptoms | OBD2 Codes

P0195 – Engine Oil Temperature Sensor Malfunction

 

P0195 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

P0195 Possible Causes

 

Faulty Engine Oil Temperature sensor,Engine Oil Temperature sensor harness is open or shorted,Engine Oil Temperature sensor circuit poor electrical connection

 

P0195 Description

 

The engine oil temperature sensor is used to detect the engine oil temperature. The sensor modifies a voltage signal from the ECM. The modified signal returns to the ECM as the engine oil 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.