They are 4 abs sensors, only one fail can trigger warning light;

shop, no one hear can tell exactly what is the cause without looking at four brakes.

A few days ago, I had to press all the way to stop my 2006 Camry that was driven by my son for three month. He did not realize the problem. I was afraid that I had to replace brake master cylinder.

I took front driver side wheel off, and found there are more than half pad life left and the rotor is fine. Then I took one of the caliper slider pin off to grease, to my surprise, the other pin was stuck. I had to take caliper bracket off, a small repair flamed hot to remove the rusted pin for me. After I replaced all four pins at both front wheels, the brake works as normal. The brake master cylinder was fine.