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Home >> Lexus >> 2020 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Lin Communication System (Diagnostic Codes) >> Lin Communication System >> DTC B2789: No Response from ID BOX [10/2015 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • If the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU) is replaced, refer to Registration.

    Refer to REGISTRATION [10/2015 - 08/2019] , or refer to REGISTRATION [08/2019 - 07/2021] , or refer to REGISTRATION [07/2021 - ]

  • 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 Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Smart Access (CAN). 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.
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