Monitor Description

WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.

The ECM and 4WD ECU assembly send and receive signals via CAN communication.

If a communication error occurs between the ECM and 4WD ECU assembly, the ECM stores this DTC.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
U0114-87	Lost Communication with Four-Wheel Drive Clutch Control Module Missing Message	All of the following conditions are met for 3 seconds or more (1 trip detection logic): Engine switch on (IG) Battery voltage is 10 V or higher No communication between ECM and 4WD ECU assembly	CAN communication system 4WD ECU assembly ECM	Does not come on	DTC stored	SAE Code: U0114