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

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.

CHECK OPERATION HISTORY

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.

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 - 08/2021] , or refer to PROBLEM SYMPTOMS TABLE [08/2021 - ]

Result:

See step 2

CHECK ENTRY BACK DOOR OPEN FUNCTION

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 - ]

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] , or refer to Close & Lock Function does not Operate [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 - ]