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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) >> Back Door Entry Unlock Function does not Operate [10/2018 - 07/2022] >> Description

Back Door Entry Unlock Function does not Operate [10/2018 - 07/2022]: Description

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.

If the entry unlock function does not operate for the back door only, but the entry lock function operates, the request code is being transmitted properly from the back door. In this case, there may be a problem related to the open switch (connection between the back door opener switch assembly and certification ECU (smart key ECU assembly)).

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