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Home >> Lexus >> 2019 >> LS 500 Base, AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Exterior Body Panels >> Power Trunk Lid System - Diagnostic Codes & Symptom Tests >> Power Trunk Lid System >> DTC U0101: Lost Communication with TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0142: Lost Communication With Body Control Module "B"; DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module; DTC U0327: Lost Communication with Vehicle Security Control Module; DTC U1117: Lost Communication with Accessory Gateway [12/2017 - 10/2023] >> Description
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DTC U0101: Lost Communication with TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0142: Lost Communication With Body Control Module "B"; DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module; DTC U0327: Lost Communication with Vehicle Security Control Module; DTC U1117: Lost Communication with Accessory Gateway [12/2017 - 10/2023]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area Memory DTC Output from
U0101 Lost Communication with TCM Communication malfunction detected between luggage closer motor assembly and ECM
  • CAN communication system
  • ECM
  • Luggage closer motor assembly
 ◦ Back Door
U0122 Lost Communication with Vehicle Dynamics Control Module Communication malfunction detected between luggage closer motor assembly and brake actuator assembly (skid control ECU) (w/ Vacuum Brake Booster) or skid control ECU assembly (w/o Vacuum Brake Booster)
  • CAN communication system
  • Brake actuator assembly (skid control ECU) (w/ Vacuum Brake Booster)
  • Skid control ECU assembly (w/o Vacuum Brake Booster)
  • Luggage closer motor assembly
 ◦ Back Door
U0142 Lost Communication With Body Control Module "B" Communication malfunction detected between luggage closer motor assembly and main body ECU (multiplex network body ECU)
  • CAN communication system
  • Main body ECU (multiplex network body ECU)
  • Luggage closer motor assembly
 ◦ Back Door
U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module Communication malfunction detected between luggage closer motor assembly and combination meter assembly
  • CAN communication system
  • Combination meter assembly
  • Luggage closer motor assembly
 ◦ Back Door
U0327 Lost Communication with Vehicle Security Control Module Communication malfunction detected between luggage closer motor assembly and certification ECU (smart key ECU assembly)
  • CAN communication system
  • Certification ECU assembly (smart key ECU assembly)
  • Luggage closer motor assembly
 ◦ Back Door
U1117 Lost Communication with Accessory Gateway Communication malfunction detected between luggage closer motor assembly and bus buffer ECU
  • CAN communication system
  • Bus buffer ECU
  • Luggage closer motor assembly
 ◦ Back Door
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