mine was like that a bit of slop, and my light was coming on from time to time. that was a year ago, then the light started to come on more and more, i checked all the hubs for play and the one with that little bit o slop, now had lots of play in it, enough to make the car drift on the highway.
changed it and the car has stopped drifting, and the abs light is less of a problem, once in a blue moon it will set off when i first start the car and drive off. if it goes off i stop, turn the car off, open the door, shut it, and start over.
i do this because when my abs light comes on the steering gets stiff, and either the brakes or the trans is holding the car back and i dont have the heart to drive it like that.