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Home >> Lexus >> 2022 >> LS 500h AWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System (W/ Advanced Park) - Diagnostic Codes (6 Of 6) & Symptom Tests >> AIRBAG SYSTEM (w/ Advanced Park) >> DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U023A-87: Lost Communication with Image Processing Module "A" Missing Message [11/2021 - 10/2023] >> Description

DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U023A-87: Lost Communication with Image Processing Module "A" Missing Message [11/2021 - 10/2023]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
U0129-87 Lost Communication with Brake System Control Module "A" Missing Message Communication stop occurs between the airbag ECU assembly and brake actuator assembly (No. 2 skid control ECU) continuously for approximately 2 second or more.
  • CAN communication system
  • Airbag ECU assembly
  • Brake actuator assembly (No. 2 skid control ECU assembly)
 Comes on Not applicable
U023A-87 Lost Communication with Image Processing Module "A" Missing Message Communication stop occurs between the airbag ECU assembly and forward recognition camera continuously for approximately 10 second or more.
  • CAN communication system
  • Airbag ECU assembly
  • Forward Recognition Camera
 Comes on Not applicable
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