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Home >> Toyota >> 2021 >> Venza LE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Key System (For Entry Function) - Diagnostic Codes & Symptom Tests (1 Of 2) >> SMART KEY SYSTEM (for Entry Function) >> DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message [07/2020 - 12/2021] >> Procedure
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DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message [07/2020 - 12/2021]: Procedure

  1. CHECK FOR DTC 
    1. Check for DTCs and note any DTCs that are output.

      Refer to DTC CHECK / CLEAR [07/2020 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

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