DTC P2182-15: Engine Coolant Temperature Sensor 2 Circuit Short to Battery or Open [10/2022 - ]: Description

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

Refer to DTC P2182-11.

Refer to DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	DTC Output from	Priority	Note
P2182-15	Engine Coolant Temperature Sensor 2 Circuit Short to Battery or Open	The engine coolant temperature sensor (for cylinder head 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 cylinder head side) circuit Engine coolant temperature sensor (for cylinder head side) ECM	Comes on	Engine	A	SAE Code: P2185 DTC for Mexico Models: Applies

HINT:

When a DTC is output, check the Data List item "Coolant Temperature Sensor2" using the GTS.

Refer to DATA LIST / ACTIVE TEST [10/2022 - 10/2024] , or refer to DATA LIST / ACTIVE TEST [10/2024 - ]

DTC No.	Coolant Temperature Sensor2	Malfunction
P2182-15	-40°C (-40°F)	Short to +B in THW2 circuit Open in THW2 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.