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Home >> Lexus >> 2023 >> LX 600 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Dynamic Radar Cruise Control System - Diagnostic Codes & Circuit Tests >> Dynamic Radar Cruise Control System >> DTC U0100-87: Lost Communication with ECM/PCM "A" 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 U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U1106-87: Lost Communication with Electric Parking Brake Module Missing Message [12/2021 - ] >> Description
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DTC U0100-87: Lost Communication with ECM/PCM "A" 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 U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U1106-87: Lost Communication with Electric Parking Brake Module Missing Message [12/2021 - ]: Description

The forward recognition camera communicates with each sensor and ECU via CAN communication.

If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
U0100-87 Lost Communication with ECM/PCM "A" Missing Message When the dynamic radar cruise control system is operating, a communication malfunction between the ECM and forward recognition camera is detected for 5 seconds or more. CAN communication system Radar Cruise 2 B
U0126-87 Lost Communication with Steering Angle Sensor Module Missing Message When the ignition switch is ON for 2 seconds or more, a communication error between the forward recognition camera and steering sensor continues for approximately 5 seconds or more. CAN communication system Radar Cruise 2 B
U0129-87 Lost Communication with Brake System Control Module Missing Message When the ignition switch is ON for 2 seconds or more, a communication error between the forward recognition camera and No. 2 skid control ECU (brake actuator assembly) continues for 5 seconds or more. CAN communication system Radar Cruise 2 B
U0155-87 Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message When the ignition switch is ON for 2 seconds or more, a communication error between the forward recognition camera and combination meter assembly continues for 5 seconds or more. CAN communication system Radar Cruise 2 B
U1106-87 Lost Communication with Electric Parking Brake Module Missing Message When the ignition switch is ON for 2 seconds or more, a communication error between the forward recognition camera and No. 2 skid control ECU (brake actuator assembly) continues for 5 seconds or more. CAN communication system Radar Cruise 2 B