98 Grand Prix ABS light is on and my Trac light is off

My ABS light is on and my Trac light is off. Could it be a wheel bearing? Or just unplugged? Where would the plug be, so that I can check it? Thanks!

Response:
Probably a wheel bearing as the sensors are usually integrated in them.... if the sensor is not in the bearing it will be behind the wheel knuckle usually held in by 1 screw... check the wiring leading to the sensor/bearing and looking for any signs of damage, both front wheels(if I remember correctly they are integrated with the bearings in front and sensors in the rear)

I do know that on newer cars if your brakes get to warn it can trigger the brake light or abs light or both