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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 201 (Lin Communication System (Hybrid) - Diagnostic Codes) >> LIN COMMUNICATION SYSTEM (for HV Model) >> DTC B2785: Communication Malfunction between ECUs Connected by LIN [06/2018 - 09/2022] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Before performing the inspection, check that DTC B2786 or B278C is not output.

    Refer to DTC CHECK / CLEAR [06/2018 - ]

  • When using the Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus Body Electrical Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
  • Before replacing the certification ECU (smart key ECU assembly), ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator or upper bracket assembly), refer to Registration.

    Refer to REGISTRATION [06/2018 - 10/2019] , or refer to REGISTRATION [10/2019 - 09/2022]

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