DTC P0195-15: Engine Oil Temperature Sensor Circuit Short to Battery or Open [03/2022 - 03/2023]: Description

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0195-11.

Refer to DTC P0195-11: Engine Oil Temperature Sensor Circuit Short to Ground [03/2022 - 03/2023]

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
P0195-15	Engine Oil Temperature Sensor Circuit Short to Battery or Open	The engine oil temperature sensor output voltage is higher than 4.865 V for 5 seconds or more (1 trip detection logic).	Open or short in engine oil temperature sensor circuit Oil pressure and temperature sensor ECM	Except Mexico models: Comes on Mexico models: Does not come on	SAE Code: P0198 DTC for Mexico Models: Applies

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
P0195-15	Higher than 150°C (302°F)	Short to +B in THEO circuit Open in THEO circuit Open in EPEO circuit

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

Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2021 - ]