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Home >> Toyota >> 2021 >> Venza LE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> 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 U1117: Lost Communication with Accessory Gateway; DTC U114F: Lost Communication with Power Integration Module [07/2020 - 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; DTC U114F: Lost Communication with Power Integration Module [07/2020 - 10/2023]: Description

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

DTC No. Detection Item DTC Detection Condition Trouble Area
U0101 Lost Communication With TCM Communication malfunction detected between multiplex network door ECU and ECM
  • CAN communication system
  • ECM
  • Multiplex network door ECU
U0122 Lost Communication With Vehicle Dynamics Control Module Communication malfunction detected between multiplex network door ECU and No. 2 skid control ECU (brake actuator assembly)
  • CAN communication system
  • No. 2 skid control ECU (brake actuator assembly)
  • Multiplex network door ECU
U0142 Lost Communication with Body Control Module "B" Communication malfunction detected between multiplex network door ECU and main body ECU (multiplex network body ECU)
  • CAN communication system
  • Main body ECU (multiplex network body ECU)
  • Multiplex network door ECU
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module Communication malfunction detected between multiplex network door ECU and combination meter assembly
  • CAN communication system
  • Combination meter assembly
  • Multiplex network door ECU
U0327 Lost Communication with Vehicle Security Control Module Communication malfunction detected between multiplex network door ECU and certification ECU (smart key ECU assembly)
  • CAN communication system
  • Certification ECU (smart key ECU assembly)
  • Multiplex network door ECU
U1117 Lost Communication with Accessory Gateway Communication malfunction detected between multiplex network door ECU and bus buffer ECU
  • CAN communication system
  • Bus buffer ECU
  • Multiplex network door ECU
U114F Lost Communication with Power Integration Module Communication malfunction detected between multiplex network door ECU and power distribution box assembly
  • CAN communication system
  • Power distribution box assembly
  • Multiplex network door ECU