DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0293-87: Lost Communication with Hybrid Powertrain Control Module Missing Message [06/2018 - 08/2021]: Description

WARNING: This page is about a different car, the 2021 Lexus ES 300h, 2020 Lexus ES 300h, and 2019 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

When a malfunction is detected between various ECUs and sensors, these DTCs are stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
U0125-87	Lost Communication with Multi-axis Acceleration Sensor Module Missing Message	While the vehicle is being driven at 5 km/h (4 mph) or more, a communication error between the yaw rate sensor (airbag ECU assembly) and the forward recognition camera is detected for approximately 4 seconds or more.	CAN communication system
U0126-87	Lost Communication with Steering Angle Sensor Module Missing Message	3 seconds or more after the power switch is turned on (IG), a communication error between the steering sensor and the forward recognition camera is detected for approximately 1 second or more.	CAN communication system
U0129-87	Lost Communication with Brake System Control Module Missing Message	3 seconds or more after the power switch is turned on (IG), a communication error between the skid control ECU (brake booster with master cylinder assembly) and the forward recognition camera is detected for approximately 1 second or more.	CAN communication system
U0293-87	Lost Communication with Hybrid Powertrain Control Module Missing Message	While the vehicle is being driven at 5 km/h (4 mph) or more, a communication error between the hybrid vehicle control ECU and the forward recognition camera is detected for approximately 6 seconds or more.	CAN communication system