Question about 2003 Mazda Mazda6

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Brake sensor? something else?

Changed brakes (front and back) on my 2003 mazda 6. 3 days later the abs light came on along with the traction control light. The cruise control will turn on but will not engage. The car is completely functional with the exception of the cruise control, which i believe to be a safety feature resulting from the warning lights from the abs and the traction control. My brakes are not locking up and the traction control is still working. What would cause those lights to come on and how can i remedy this? I have checked all the fuses, which are good. I disconnected the ground on the battery for a few minutes hoping to get a reset, but that was to no avail.

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You have a faulty wheel speed sensor. This is a magnetic pick up sensor on your wheel bearing hub and it controls your abs. If the car can not sense all 4 wheels then the abs will default back to normal brakes and your traction control will not work. Look at your wheel bearing hubs and check for these sensors. They are on the underside of the car and are black plastic with a wire comming out of it. A piece of gravel may have broken the pick up or the wires to a sensor may be broken as well. To replace it is usually a couple of screws on the hub assembly and a plug to disconnect from your wire harness.

Posted on May 27, 2009

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