DTC P0115-2A: Engine Coolant Temperature Sensor 1 Signal Stuck in Range [03/2024 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0115-11.

Refer to DTC P0115-11: Engine Coolant Temperature Sensor 1 Circuit Short to Ground [03/2023 - ]

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
P0115-2A	Engine Coolant Temperature Sensor 1 Signal Stuck in Range	Either of the following conditions is met (2 trip detection logic): When engine is started cold and warmed up, the engine coolant temperature sensor value does not change. After the warmed up engine is stopped and then next cold engine start is performed, the engine coolant temperature sensor value does not change.	Water inlet with thermostat sub-assembly Engine coolant temperature sensor	Comes on	SAE Code: P0116 DTC for Mexico Models: Applies