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Home >> Toyota >> 2019 >> 86 Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System (Auto A/C) - Diagnostic Codes & Circuit Tests >> AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) >> DTC U0073: Control Module Communication Bus OFF; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster Control Module (Combination Meter); DTC U0401: Invalid Data Received from ECM/PCM "A"; DTC U0402: Invalid Data Received from TCM; DTC U0416: Invalid Data Received from Vehicle Dynamics Control Module; DTC U0422: Invalid Data Received from Body Control Module; DTC U0423: Invalid Data Received from Instrument Panel Cluster Control Module [03/2017 - ] >> Description
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DTC U0073: Control Module Communication Bus OFF; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster Control Module (Combination Meter); DTC U0401: Invalid Data Received from ECM/PCM "A"; DTC U0402: Invalid Data Received from TCM; DTC U0416: Invalid Data Received from Vehicle Dynamics Control Module; DTC U0422: Invalid Data Received from Body Control Module; DTC U0423: Invalid Data Received from Instrument Panel Cluster Control Module [03/2017 - ]: Description

DTC No. DTC Detecting Condition Trouble Area
U0073 Control Module Communication Bus Off
  • CAN communication system
U0100 Lost Communication With ECM/PCM "A"
  • CAN communication system
  • ECM
U0101 Lost Communication With TCM
  • CAN communication system
  • TCM
U0122 Lost Communication with Vehicle Dynamics Control Module
  • CAN communication system
  • Skid control ECU (brake actuator assembly)
U0140 Lost Communication with Body Control Module
  • CAN communication system
  • Main body ECU (network gateway ECU)
U0155 Lost Communication With Instrument Panel Cluster Control Module
  • CAN communication system
  • Combination meter assembly
U0401 Invalid Data Received from ECM/PCM "A"
  • CAN communication system
  • ECM
U0402 Invalid Data Received from TCM
  • CAN communication system
  • TCM
U0416 Invalid Data Received from Vehicle Dynamics Control Module
  • CAN communication system
  • Combination meter assembly
U0422 Invalid Data Received from Body Control Module
  • CAN communication system
  • Skid control ECU (brake actuator assembly)
U0423 Invalid Data Received from Instrument Panel Cluster Control Module
  • CAN communication system
  • Combination meter assembly
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