DTC P01E3-11: Engine Coolant Temperature Sensor 3 Circuit Short to Ground [09/2023 - ]: Description

WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.

A thermistor, whose resistance value varies according to the engine coolant temperature, is built into the engine coolant temperature sensor (for water inlet housing side). The structure of the sensor and its connection to the ECM are the same as those of the intake air temperature sensor.

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HINT:

When DTC P01E3-11 is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM changes the engine coolant temperature judgment value (for water inlet housing 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	DTC Output from	Priority	Note
P01E3-11	Engine Coolant Temperature Sensor 3 Circuit Short to Ground	The engine coolant temperature sensor (for water inlet housing side) output voltage is less than 0.081 V for 3 seconds or more (1 trip detection logic).	Short in engine coolant temperature sensor (for water inlet housing side) circuit Engine coolant temperature sensor (for water inlet housing side) ECM	Comes on	Engine	A	SAE Code: P01E5 DTC for Mexico Models: Applies

HINT:

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

Refer to DATA LIST / ACTIVE TEST [09/2023 - ]

DTC No.	Coolant Temperature Sensor3	Malfunction
P01E3-11	Higher than 135°C (275°F)	Short to ground in THW3 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.