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Home >> Toyota >> 2021 >> Mirai XLE >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Audio / Video System - Diagnostic Codes (2 Of 2) & Symptom Tests (1 Of 2) >> Audio And Visual System >> DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Engine/EV ECU Communication; DTC U0129: VSC(ECB)ECU Communication; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0164: Air Conditioner ECU Communication; DTC U0198: Lost Communication with Telematic Control Module; DTC U0293: HV ECU Communication; DTC U1135: Lost Communication with Plug-in Control Module [11/2020 - 12/2022] >> Procedure

DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Engine/EV ECU Communication; DTC U0129: VSC(ECB)ECU Communication; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0164: Air Conditioner ECU Communication; DTC U0198: Lost Communication with Telematic Control Module; DTC U0293: HV ECU Communication; DTC U1135: Lost Communication with Plug-in Control Module [11/2020 - 12/2022]: Procedure

  1. CHECK DTC 

    Pre-procedure1

    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

      Procedure1

    2. Recheck for DTCs and check that no DTCs are output.

      Body Electrical > Navigation System > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTCs are output B

      Post-procedure1

    3. None

    Result: 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2020 - ] 

    Result: 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2020 - 11/2021]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - 12/2022]