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Home >> Toyota >> 2019 >> Tundra TRD Pro >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Smart Key System (For Start Function) - Diagnostic Codes & Symptom Tests) >> Smart Key System (For Start Function) [3UR-FE] >> DTC U0100: Lost Communication with ECM / PCM; DTC U0140: Lost Communication with Body Control Module; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U1117: Lost Communication with Accessory Gateway [08/2019 - ] >> Procedure
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DTC U0100: Lost Communication with ECM / PCM; DTC U0140: Lost Communication with Body Control Module; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U1117: Lost Communication with Accessory Gateway [08/2019 - ]: Procedure

WARNING: This page is about a different car, the 2021 Toyota Tundra and 2020 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
  1. GO TO CAN COMMUNICATION SYSTEM 
    1. Refer to the CAN Communication System.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    END