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Home >> Lexus >> 2019 >> UX 250h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> ASC System (Diagnostic Codes & Circuit Tests) >> ASC System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0293: Lost Communication With Hybrid Powertrain Control Module [10/2018 - 07/2022] >> Description
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DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0293: Lost Communication With Hybrid Powertrain Control Module [10/2018 - 07/2022]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area
U0100 Lost Communication with ECM / PCM "A" No communication with ECM
  • CAN communication system
  • ECM
  • Stereo component equalizer assembly
U0122 Lost Communication With Vehicle Dynamics Control Module No communication with skid control ECU (brake actuator assembly)
  • CAN communication system
  • Skid control ECU (brake actuator assembly)
  • Stereo component equalizer assembly
U0129 Lost Communication with Brake System Control Module No communication with skid control ECU (brake booster with master cylinder assembly)
  • CAN communication system
  • Skid control ECU (brake booster with master cylinder assembly)
  • Stereo component equalizer assembly
U0142 Lost Communication with Body Control Module "B" No communication with main body ECU (multiplex network body ECU)
  • CAN communication system
  • Main body ECU (multiplex network body ECU)
  • Stereo component equalizer assembly
U0293 Lost Communication With Hybrid Powertrain Control Module No communication with hybrid vehicle control ECU
  • CAN communication system
  • Hybrid vehicle control ECU
  • Stereo component equalizer assembly