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abs light will only go out when the problem with the system is corrected, if you've owned this vehicle for a while you've probably repaced the wheel bearings....if the light is on....you probably need to replace one of them again.
a failing ABS sensor is at fault, visually inspect wiring and also check each tire for bearing play, some sensors are a single unit ABS sensor built into bearing, if found play at any wheel that may be the one is failling.
the abs light will come on when you turn key on and go off after engine starts (3secs),it will also come on if you brake harder than required,to stop the wheels locking.If it comes on at other times it could be reservoir needs topping up or an abs fault(check it by standing on brake pedal at 30kph(wheels should not lock up until 3/5kph.)read antilock brakes or antiblocking brakes, 2 different systems.
there are four ABS sensors. one behind each wheel in the hub assmebly just follow the shielded wiring harness down to the sensor, it is at the behind the brake rotor in the hub assmebly, the lock up problem is not the sensor, the function of ABS is to stop lock up of the wheel, this problem is caused by a leaking ABS hydraulic control unit, that is the part with all the brake lines coming out of it
No, it is probably not related. Usually the ABS and traction control light is either a wheel sensor problem, located in one of the wheel bearings, or most likely in the wire harness from the wheel bearing sensor. Remove wires and spray clean with a good solvent electric spray, and check the condition of the receptacle. I have had these problems with my 02 AWD so many times it has become almost routine. GM really have a problem with this type of speed sensor in the wheel bearings. In the AWD model, it keeps the car in FWD if the ABS light is on for any reason. JUNK!