The garage got a ABS code 13. I am having the right wheel lock up on gravel only. Brakes works good on pavement. He said it means maybe a bad wheel sensor or sensor wire or the wheel bearing on the drivers side. I can't find a list of ABS codes for my 99 caravan. Is 13 the drivers side. I'll try to fix it my self. The sensor is clean. I can get a used sensor for cheap. Thanks for any help.