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Home >> Lexus >> 2023 >> LX 600 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Blind Spot Monitor System - Diagnostic Codes & Circuit Tests >> Blind Spot Monitor 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 "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U1110-87: Lost Communication with Clearance Sonar 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 "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U1110-87: Lost Communication with Clearance Sonar Module Missing Message [12/2021 - ]: Description

These DTCs are stored if there is a malfunction in the CAN communication system connected to the blind spot monitor sensor.

HINT: 

If CAN communication system DTCs are stored, they may also be stored for other systems.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
U0100-87 Lost Communication with ECM/PCM "A" Missing Message Lost communication with ECM CAN communication system Blind Spot Monitor "B" B
U0126-87 Lost Communication with Steering Angle Sensor Module Missing Message Lost communication with steering sensor CAN communication system Blind Spot Monitor "B" B
U0129-87 Lost Communication with Brake System Control Module "A" Missing Message Lost communication with No. 2 skid control ECU CAN communication system Blind Spot Monitor "B" B
U0140-87 Lost Communication with Body Control Module Missing Message Lost communication with main body ECU (multiplex network body ECU) CAN communication system Blind Spot Monitor "B" B
U1110-87 Lost Communication with Clearance Sonar Module Missing Message Lost communication with clearance warning ECU assembly CAN communication system Blind Spot Monitor "B" B