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Home >> Lexus >> 2021 >> NX 300 Base, AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Exterior Body Panels >> Power Back Door System - Diagnostic Codes & Symptom Tests >> Power Back Door 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 U1114: Lost Communication with Main Switch Module; DTC U1117: Lost Communication with Accessory Gateway [09/2017 - ] >> 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 U1114: Lost Communication with Main Switch Module; DTC U1117: Lost Communication with Accessory Gateway [09/2017 - ]: Description

These DTCs are stored when a malfunction occurs in the CAN communication circuit.

DTC No. Detection Item Trouble Area
U0101 Lost Communication With TCM
  • CAN communication system
  • ECM
  • Multiplex network door ECU
U0122 Lost Communication With Vehicle Dynamics Control Module
  • CAN communication system
  • Brake actuator assembly (skid control ECU)
  • Multiplex network door ECU
U0142 Lost Communication with Body Control Module "B"
  • CAN communication system
  • Main body ECU (multiplex network body ECU)
  • Multiplex network door ECU
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module
  • CAN communication system
  • Combination meter assembly
  • Multiplex network door ECU
U0327 Lost Communication with Vehicle Security Control Module
  • CAN communication system
  • Certification ECU (smart key ECU assembly)
  • Multiplex network door ECU
U1114 Lost Communication with Main Switch Module
  • CAN communication system
  • Combination meter assembly
  • Multiplex network door ECU
U1117 Lost Communication with Accessory Gateway
  • CAN communication system
  • Bus buffer ECU
  • Multiplex network door ECU