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Home >> Lexus >> 2020 >> LS 500 Base, AWD >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Seat Belt System - Diagnostic Codes & Circuit Tests >> Seat Belt System >> DTC U0075-88: Control Module Communication Bus "C" Off Bus Off; DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U1104-87: Lost Communication with Driving Support ECU Missing Message [12/2017 - 10/2020] >> Description
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DTC U0075-88: Control Module Communication Bus "C" Off Bus Off; DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U1104-87: Lost Communication with Driving Support ECU Missing Message [12/2017 - 10/2020]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Note
U0075-88 Control Module Communication Bus "C" Off Bus Off Bus off condition is detected 25 times or more CAN communication failure PCS Warning Light:
Blinks
"Pre-Collision System Malfunction Visit Your Dealer" is displayed on the multi information display (in the combination meter assembly)
U0129-87 Lost Communication With Brake System Control Module Missing Message Communication is lost between the seat belt control ECU and the skid control ECU assembly for approximately 3 seconds or more CAN communication failure PCS Warning Light:
Blinks
"Pre-Collision System Malfunction Visit Your Dealer" is displayed on the multi information display (in the combination meter assembly)
U0140-87 Lost Communication with Body Control Module Missing Message Communication is lost between the seat belt control ECU and the main body ECU (multiplex network body ECU) for approximately 6 seconds or more CAN communication failure PCS Warning Light:
Blinks
"Pre-Collision System Malfunction Visit Your Dealer" is displayed on the multi information display (in the combination meter assembly)
U0151-87 Lost Communication with Restraints Control Module Missing Message Communication is lost between the seat belt control ECU and the airbag ECU assembly for approximately 6 seconds or more CAN communication failure PCS Warning Light:
Blinks
"Pre-Collision System Malfunction Visit Your Dealer" is displayed on the multi information display (in the combination meter assembly)
U1104-87 Lost Communication with Driving Support ECU Missing Message Communication is lost between the seat belt control ECU and the driving support ECU for approximately 2 seconds or more CAN communication failure PCS Warning Light:
Blinks
"Pre-Collision System Malfunction Visit Your Dealer" is displayed on the multi information display (in the combination meter assembly)