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Home >> Lexus >> 2021 >> RX 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Lighting System (W/O Automatic Headlight Beam Level Control System) - Diagnostic Codes & Circuit Tests >> LIGHTING SYSTEM (w/o Automatic Headlight Beam Level Control System) >> DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U012587: Lost Communication With Multi-axis Acceleration Sensor Module Missing Message; DTC U012987: Lost Communication with Brake System Control Module Missing Message; DTC U014087: Lost Communication with Body Control Module Missing Message [08/2019 - ] >> Description
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DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U012587: Lost Communication With Multi-axis Acceleration Sensor Module Missing Message; DTC U012987: Lost Communication with Brake System Control Module Missing Message; DTC U014087: Lost Communication with Body Control Module Missing Message [08/2019 - ]: Description

These DTCs are stored if a CAN communication malfunction occurs between the forward recognition camera and other ECUs.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
U010087 Lost Communication With ECM/PCM "A" Missing Message The forward recognition camera does not receive data from the ECM for approximately 5 seconds or more.
  • CAN communication system
  • ECM
 Forward recognition camera
U012587 Lost Communication With Multi-axis Acceleration Sensor Module Missing Message The forward recognition camera does not receive data from the yaw rate sensor assembly*1 or airbag sensor assembly*2 for approximately 5 seconds or more.
  • CAN communication system
  • Yaw rate sensor assembly*1
  • Airbag sensor assembly*2
 Forward recognition camera
U012987 Lost Communication with Brake System Control Module Missing Message The forward recognition camera does not receive data from the skid control ECU (brake actuator assembly) for approximately 5 seconds or more.
  • CAN communication system
  • Skid control ECU (brake actuator assembly)
 Forward recognition camera
U014087 Lost Communication with Body Control Module Missing Message The forward recognition camera does not receive data from the main body ECU (multiplex network body ECU) for approximately 5 seconds or more.
  • CAN communication system
  • Main body ECU (multiplex network body ECU)
 Forward recognition camera
  1. *1: for TFT Meter Type
  2. *2: for Optitron Meter Type
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