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Home >> Toyota >> 2021 >> Venza LE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> TOYOTA Multi Operation Touch System - Diagnostic Codes & Circuit Tests >> TOYOTA Multi Operation Touch System >> DTC U0073: Control Module Communication Bus "A" Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0114: Lost Communication with Four-Wheel Drive Clutch Control Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication With Brake System Control Module "A"; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163: Lost Communication with Navigation Control Module; DTC U0164: Lost Communication with HVAC Control Module; DTC U0293: Lost Communication with Hybrid/EV Powertrain Control Module; DTC U114F: Lost Communication with Power Integration Module [07/2020 - 10/2022] >> Procedure
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DTC U0073: Control Module Communication Bus "A" Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0114: Lost Communication with Four-Wheel Drive Clutch Control Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication With Brake System Control Module "A"; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163: Lost Communication with Navigation Control Module; DTC U0164: Lost Communication with HVAC Control Module; DTC U0293: Lost Communication with Hybrid/EV Powertrain Control Module; DTC U114F: Lost Communication with Power Integration Module [07/2020 - 10/2022]: Procedure

  1. CHECK DTC (CAN COMMUNICATION SYSTEM) 
    1. Clear the DTCs.

      Body Electrical > D-SEAT SW > Clear DTCs 

    2. Recheck for DTCs and check if the same DTC is output again.

      Body Electrical > D-SEAT SW > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ] 

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - 10/2022]