3 signs of a bad ABS Speed Sensor The anti-lock brake (ABS) system uses sensors that send data to the ABS module which will activate it during wheel lock.

Q:My ABS light came on last week on my 2006 F-150. The auto parts store read the code and said it was the rear center ABS sensor. I bought one, replaced it, and ...

I have an Acctron diagnostic hooked up and see the O 2 sensor voltage changing constantly between .2v to .7v. Is the sensor gone? Almost everything I read says the almost never go bad.