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Home >> Lexus >> 2021 >> UX 250h Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 46 (Smart Access System W/ Push-Button Start (Entry Function) (Diagnostic Codes & Symptom Tests) (Except Hybrid)) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function, Gasoline Model) >> Entry Lock Function does not Operate Using Close & Lock Function [10/2018 - 07/2022] >> Procedure

Entry Lock Function does not Operate Using Close & Lock Function [10/2018 - 07/2022]: Procedure

WARNING: This page is about a different car, the 2022 Lexus UX 200, 2021 Lexus UX 200, 2020 Lexus UX 200, and 2019 Lexus UX 200. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK OPERATION HISTORY 
    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 / Smart Access / Utility / Operation History

      Body Electrical > Smart Access > Utility 

      Tester Display
      Operation History
      AUTO ENTRY WIRELESS OPERATION HISTORY

      Parameter Name Content
      Back Door Lock & Close signal Certification ECU (smart key ECU assembly) confirmed the back door lock & close signal.

      Result

      Result Proceed to
      Not output A
      "Back Door Lock & Close signal" is output B

    Result: 

    GO TO POWER BACK DOOR SYSTEM. Refer to  PROBLEM SYMPTOMS TABLE [10/2018 - 07/2022] 

    Result: 

    See step  2

  2. CHECK ENTRY BACK DOOR OPEN FUNCTION 
    1. While carrying the electrical key transmitter sub-assembly, check that the entry unlock function operates when the back door opener switch is operated.

      Refer to OPERATION CHECK [10/2018 - 08/2021] , or refer to OPERATION CHECK [08/2021 - 07/2022]

      Result

      Result Proceed to
      Entry back door open function operates A
      Entry back door open function does not operate B

    Result: 

    GO TO POWER BACK DOOR SYSTEM (Close & Lock Function does not Operate). Refer to  Close & Lock Function does not Operate [10/2018 - 07/2022] 

    Result: 

    GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (Back Door Entry Lock and Unlock Functions do not Operate). Refer to  Back Door Entry Lock and Unlock Functions do not Operate [10/2018 - 07/2022]