DTC U0142-87: Lost Communication with Body Control Module "B" Missing Message; DTC U0208-87: Lost Communication with "Seat Control Module A" Missing Message [08/2021 - ]: Description

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2024 Lexus ES 350, 2024 Lexus ES 250, 2023 Lexus ES 350, 2023 Lexus ES 250, and 2022 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.

The multiplex tilt and telescopic ECU receives signals from the main body ECU (multiplex network body ECU) and position control ECU assembly (driver seat) via CAN communication.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
U0142-87	Lost Communication with Body Control Module "B" Missing Message	One of the following conditions is met: Signals (memory-related data) from the main body ECU (multiplex network body ECU) are interrupted for 3.3 seconds. Signals (IG switch signals) from the main body ECU (multiplex network body ECU) are interrupted for 10 seconds or more.	CAN communication system Main body ECU (Multiplex network body ECU)
U0208-87	Lost Communication with "Seat Control Module A" Missing Message	Signals (memory or recall request signal) received from the position control ECU assembly (driver seat) are interrupted for 10 seconds or more.	CAN communication system Position control ECU assembly (Driver seat)