LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2023 >> GR Corolla Core >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System (Early 2023, Except TMC) (Gas Model, W/ Auto A/C) - Diagnostic Codes, Circuit Tests & Symptom Tests >> AIR CONDITIONING SYSTEM (except TMC Made, and Gasoline Model, with Automatic Air Conditioning System) >> DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0131: Lost Communication With Power Steering Control Module; DTC U0142: Lost Communication With Body Control Module "B"; DTC U0151: Lost Communication With Restraints Control Module; DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module [09/2022 - 11/2022] >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0131: Lost Communication With Power Steering Control Module; DTC U0142: Lost Communication With Body Control Module "B"; DTC U0151: Lost Communication With Restraints Control Module; DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module [09/2022 - 11/2022]: Description

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

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
U0100 Lost Communication With ECM/PCM "A" No communication with ECM
  • CAN communication system
  • ECM
 Memorized
U0131 Lost Communication With Power Steering Control Module No communication with power steering ECU assembly
  • CAN communication system
  • Power steering ECU assembly
 Memorized
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)
 Memorized
U0151 Lost Communication With Restraints Control Module No communication with airbag sensor assembly
  • CAN communication system
  • Airbag sensor assembly
 Memorized
U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module No communication with combination meter assembly
  • CAN communication system
  • Combination meter assembly
 Memorized
scientia non olet · About LEMON Manuals