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Home >> Lexus >> 2022 >> ES 350 Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System (Except Hybrid) - Diagnostic Codes & Symptom Tests >> AIR CONDITIONING SYSTEM (for Gasoline Model) >> 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; DTC U0163: Lost Communication With Navigation Control Module [06/2018 - ] >> Description
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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; DTC U0163: Lost Communication With Navigation Control Module [06/2018 - ]: 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 (rack and pinion power steering gear assembly)
  • CAN communication system
  • Power steering ECU (rack and pinion power steering gear 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 ECU assembly
  • CAN communication system
  • Airbag ECU 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
U0163 Lost Communication With Navigation Control Module No communication with radio receiver assembly
  • CAN communication system
  • Radio receiver assembly
 Memorized
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