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Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 222 (Power Trunk Lid System (Except Hybrid) - Diagnostic Codes & Symptom Tests) >> POWER TRUNK LID SYSTEM (for Gasoline Model) >> DTC U0101: Lost Communication with TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0142: Lost Communication With Body Control Module "B"; DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module; DTC U0327: Lost Communication with Vehicle Security Control Module; DTC U1117: Lost Communication with Accessory Gateway [06/2018 - 08/2021] >> Procedure

DTC U0101: Lost Communication with TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0142: Lost Communication With Body Control Module "B"; DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module; DTC U0327: Lost Communication with Vehicle Security Control Module; DTC U1117: Lost Communication with Accessory Gateway [06/2018 - 08/2021]: Procedure

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2024 Lexus ES 350, 2024 Lexus ES 250, 2023 Lexus ES 350, 2023 Lexus ES 250, and 2022 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR DTC 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Back Door / Trouble Codes.
    5. Clear the DTCs.

      Body Electrical > Back Door > Clear DTCs 

    6. Check for DTCs.

      Body Electrical > Back Door > Trouble Codes 

      HINT: 

      If DTCs related to a malfunction in the CAN communication system are output, refer to "How to Proceed with Troubleshooting" for the CAN communication system.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

      OK

      DTC U0101, U0122, U0142, U0155, U0327 and U1117 is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]