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Home >> Lexus >> 2021 >> LS 500h RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Lighting System (Ext) - Diagnostic Codes (2 Of 2) & Circuit Tests (1 Of 2) >> Lighting System >> DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0134-87: Lost Communication with Power Steering Control Module Rear Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message [09/2018 - 10/2020] >> Description
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DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0134-87: Lost Communication with Power Steering Control Module Rear Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message [09/2018 - 10/2020]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Note
U0125-87 Lost Communication with Multi-axis Acceleration Sensor Module Missing Message
  • Communication stop occurs between the object recognition camera and yaw rate sensor continuously for 5 seconds or more. w/ AFS (Front-lighting Adaptive System)
  • Communication stop occurs between the forward recognition camera and yaw rate sensor continuously for 5 seconds or more. w/o AFS (Front-lighting Adaptive System)
  • CAN communication system
  • Yaw rate sensor
  • Object recognition camera w/ AFS (Front-lighting Adaptive System)
  • Forward recognition camera w/o AFS (Front-lighting Adaptive System)
Front Recognition Camera (Front Lighting Control) -
U0129-87 Lost Communication with Brake System Control Module Missing Message
  • Communication stop occurs between the object recognition camera and skid control ECU assembly continuously for 5 seconds or more. w/ AFS (Front-lighting Adaptive System)
  • Communication stop occurs between the forward recognition camera and skid control ECU assembly continuously for 5 seconds or more. w/o AFS (Front-lighting Adaptive System)
  • CAN communication system
  • Skid control ECU assembly
  • Object recognition camera w/ AFS (Front-lighting Adaptive System)
  • Forward recognition camera w/o AFS (Front-lighting Adaptive System)
Front Recognition Camera (Front Lighting Control) -
U0134-87 Lost Communication with Power Steering Control Module Rear Missing Message
  • Communication stop occurs between the object recognition camera and rear steering control ECU continuously for 5 seconds or more. w/ AFS (Front-lighting Adaptive System)
  • Communication stop occurs between the forward recognition camera and rear steering control ECU continuously for 5 seconds or more. w/o AFS (Front-lighting Adaptive System)
  • CAN communication system
  • Rear steering control ECU
  • Object recognition camera w/ AFS (Front-lighting Adaptive System)
  • Forward recognition camera w/o AFS (Front-lighting Adaptive System)
Front Recognition Camera (Front Lighting Control) -
U0140-87 Lost Communication with Body Control Module Missing Message
  • Communication stop occurs between the object recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more. w/ AFS (Front-lighting Adaptive System)
  • Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more. w/o AFS (Front-lighting Adaptive System)
  • CAN communication system
  • Main body ECU (multiplex network body ECU) and
  • Object recognition camera w/ AFS (Front-lighting Adaptive System)
  • Forward recognition camera w/o AFS (Front-lighting Adaptive System)
Front Recognition Camera (Front Lighting Control) -
U0293-87 Lost Communication With Hybrid Powertrain Control Module Missing Message
  • Communication stop occurs between the object recognition camera and hybrid vehicle control ECU assembly continuously for 5 seconds or more. w/ AFS (Front-lighting Adaptive System)
  • Communication stop occurs between the forward recognition camera and hybrid vehicle control ECU assembly continuously for 5 seconds or more. w/o AFS (Front-lighting Adaptive System)
  • CAN communication system
  • Hybrid vehicle control ECU assembly
  • Object recognition camera w/ AFS (Front-lighting Adaptive System)
  • Forward recognition camera w/o AFS (Front-lighting Adaptive System)
Front Recognition Camera (Front Lighting Control) -