DTC P0195-11: Engine Oil Temperature Sensor Circuit Short to Ground [10/2022 - ]: Description

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A thermistor, whose resistance changes in accordance with the engine oil temperature, is built into the engine oil temperature sensor. As the engine oil temperature decreases, the thermistor resistance increases and as the engine oil temperature increases, the thermistor resistance decreases. The engine oil temperature sensor is connected to the ECM. A voltage of 5 V is supplied from terminal THEO via resistor R of the ECM. Since resistor R and the engine oil temperature sensor are connected in series, both the resistance and the electrical potential of THEO are subject to change in accordance with a change in the engine oil temperature.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
P0195-11	Engine Oil Temperature Sensor Circuit Short to Ground	The engine oil temperature sensor output voltage is less than 0.13V for 5 seconds or more (1 trip detection logic).	Short in engine oil temperature sensor circuit Engine oil temperature sensor ECM	Comes on	SAE Code: P0197

HINT:

When this DTC is output, check the engine oil temperature in the Data List. Enter the following menus: Powertrain / Engine / Data List / Engine Oil Temperature Sensor.

DTC No.	Engine Oil Temperature Sensor	Malfunction
P0195-11	Higher than 170°C (338°F)	Short to ground in THEO circuit

If the Data List values is normal it may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

Refer to CHECK FOR INTERMITTENT PROBLEMS [10/2022 - ]