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Home >> Lexus >> 2024 >> RC F Track Edition >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting System (Ext) - Diagnostic Codes & Circuit Tests >> Lighting System >> DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module [03/2019 - ] >> Description
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DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module [03/2019 - ]: Description

These DTCs are stored when the CAN communication system is malfunctioning.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
U0073 Control Module Communication Bus Off Lost communication with CAN communication line CAN communication system HL AutoLeveling
U0100 Lost Communication with ECM / PCM "A" Lost communication with ECM
  • CAN communication system
  • ECM
 HL AutoLeveling
U0101 Lost Communication with TCM Lost communication with TCM
  • CAN communication system
  • TCM
 HL AutoLeveling
U0126 Lost Communication with Steering Angle Sensor Module Lost communication with steering sensor
  • CAN communication system
  • Steering sensor
 HL AutoLeveling
U0129 Lost Communication with Brake System Control Module Lost communication with brake actuator assembly (skid control ECU)
  • CAN communication system
  • Brake actuator assembly (skid control ECU)
 HL AutoLeveling
U0142 Lost Communication with Body Control Module "B" Lost communication with main body ECU (multiplex network body ECU)
  • CAN communication system
  • Main body ECU (multiplex network body ECU)
 HL AutoLeveling
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module Lost communication with combination meter assembly
  • CAN communication system
  • Combination meter assembly
 HL AutoLeveling
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