DTC P01E3-15: Engine Coolant Temperature Sensor 3 Circuit Short to Battery or Open [11/2021 - ]: Description

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

Refer to DTC P01E3-11.

Refer to DESCRIPTION

HINT:

When DTC P01E3-15 is stored, the ECM enters fail-safe mode. The ECM changes the engine coolant temperature judgment value (for inlet side) to the outlet coolant temperature - 5°C (-9°F) and sets the target engine coolant temperature to 82°C (180°F), Fail-safe mode continues until a pass condition is detected.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
P01E3-15	Engine Coolant Temperature Sensor 3 Circuit Short to Battery or Open	The engine coolant temperature sensor (for inlet side) output voltage is higher than 4.91 V for 3 seconds or more (1 trip detection logic).	Open or short in engine coolant temperature sensor (for inlet side) circuit Engine coolant temperature sensor (for inlet side) ECM	Comes on	SAE Code: P01E6

HINT:

When a DTC is output, check the Data List item "Coolant Temperature Sensor3" using the GTS.

Refer to DATA LIST / ACTIVE TEST [11/2021 - 03/2023] , or refer to DATA LIST / ACTIVE TEST [03/2023 - 03/2024] , or refer to DATA LIST / ACTIVE TEST [03/2024 - ]

DTC No.	Coolant Temperature Sensor3	Malfunction
P01E3-15	-40°C (-40°F)	Short to +B in THW3 circuit Open in THW3 circuit Open in ETHW circuit

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