ABS Operates Before Necessary When Braking [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.
- PERFORM TEST MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CIRCUIT)
- Using the Techstream, perform a Test Mode (Signal Check) inspection sensor check and check that speed sensor Test Mode (Signal Check) inspection items change from incomplete to complete.
Refer to TEST MODE PROCEDURE [10/2018 - ]
Chassis > ABS/VSC/TRAC > Utility
Tester Display Signal Check OK
Speed sensor Test Mode (Signal Check) inspection items change from incomplete to complete.
Result
Result Proceed to OK (for Front and Rear (for AWD)) A OK (for Rear (for 2WD)) B NG C NOTE:- When cleaning the front speed sensor, make sure to clean the installation hole before installation.
- Do not use parts cleaner when cleaning the front speed sensor rotor.
HINT:
The rear speed sensor and rear speed sensor rotor are incorporated into the rear axle hub and bearing assembly.
If the rear speed sensor and rear speed sensor rotor need to be replaced, replace the rear axle hub and bearing assembly.
Result:
A
CLEAN FRONT SPEED SENSOR AND FRONT SPEED SENSOR ROTOR
Result:
B
REPLACE REAR AXLE HUB AND BEARING ASSEMBLY. Refer to REMOVAL [10/2018 - 07/2022] , or refer to REMOVAL [07/2022 - ]
Result:
C
INSPECT AND REPAIR MALFUNCTIONING SPEED SENSOR CIRCUIT
- Using the Techstream, perform a Test Mode (Signal Check) inspection sensor check and check that speed sensor Test Mode (Signal Check) inspection items change from incomplete to complete.