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Home >> Lexus >> 2016 >> GX 460 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting System (Exterior) (Diagnostic Codes & Circuit Tests) >> Lighting System >> DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Main Body ECU; DTC U1000: Can Communication Failure(Message Registry); DTC U1121: Lost Communication with Driver Seat Module [08/2015 - 08/2019] >> Description
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DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Main Body ECU; DTC U1000: Can Communication Failure(Message Registry); DTC U1121: Lost Communication with Driver Seat Module [08/2015 - 08/2019]: Description

These DTCs are stored when the self-diagnosis of the headlight swivel ECU determines that the CAN communication system is malfunctioning.

DTC Code DTC Detection Condition Trouble Area
U0073 Control module communication bus is off. CAN communication system
U0100 Lost communication with the ECM/PCM "A".
U0126 Lost communication with the steering angle sensor.
U0129 Lost communication with the brake system control module.
U0142 Lost communication with the main body ECU (multiplex network body ECU).
U1000 CAN communication failure.
U1121 Lost communication with the driver seat module.