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ABS Warning Light Due to Failed Wheel Speed Sensor on Toyota Avalon

Problem Description and Possible Solution

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.

 

Problem Data
RepairPal Verified
Average mileage: 149,275 (131,000–175,000)
3 model years affected: 1995, 1996, 1997
8 people reported this problem
Viewing 1 - 2 of 2 comments
ABS light is on and the Trac Off light is blinking. When I turn the car off and crank again, the lights are off.
Changed the tire, and front end brakes. Problem appeared while service was being performed. We played with it for an hour and were unable to correct the problem. Sensor not replaced. ABS is proven only in snow.

Without snow, as where I live, ABS only proves to extend stopping length of vehicle during hydroplaning. We determined the inhibited ABS control system due to malfunctioning sensor would actually improve driving ability during sliding event in rain or mud here in California, and left faulty sensor in place.