At higher mileages, an anti-lock brake system wheel speed sensor may wear out and illuminate the ABS warning light. It is recommended to replace the sensor with a factory part and be sure to clean all rust and debris from the mounting area because the mounting distance is critical. Failure to do so may result in the new sensor setting false trouble codes. Be sure to check the condition and runout of the front wheel bearings on the 2WD and 4WD vehicles and the CV joints on the 4WD vehicles since worn wheel bearings and/or CV joints can cause the ABS trigger rings to rub against the ABS sensors and damage them.
ABS Warning Light Due to Failed Wheel Speed Sensor on Toyota 4Runner
Average mileage: 307,086 (307,086–307,086)
8 people reported this problem
2001 Toyota 4Runner 307,086 mi, Visitor
Brake light and ABS light continue to stay on. mechanic indicated that brake sensor is bad.
my right tire lock up