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.Google+
Car Problem Reports
Toyota Camry ABS Wheel Speed Sensors May Wear Out and Set Codes at Higher Mileages
Toyota Camry Problem
Average Mileage: 138,706 mi (66,000 mi - 251,150 mi)
Visitor, 2009 Toyota Camry, 66,000 mi
$600 estimate to repair left front speed sensor
Visitor, 1994 Toyota Camry, 251,150 mi
Recently purchased used for a work car. The ABS light stays on but the car handles and breaks perfectly. The guy I bought it from stated that it was a bad sensor but couldn't remember exactly which one. I'll replace it based upon this blog and let you know what happens...
Visitor, 2009 Toyota Camry, 112,000 mi
ABS/Brake lights on. Speedometer jumps around wildly and randomly
Visitor, 2007 Toyota Camry, 121,878 mi
ABS light comes on; I had the front and rear brakes replaced; struts replace; fuel ingition cleaning, power steering pressure line replace; 3 speed sensors right side replaced and I am going back to probably get my 4th speed sensor tomorrow.
ABS light is on and I have no idea what it means.