I recently picked up a 2000 mustang. The other day I was turning into a parking stall on dry pavement and the abs kicked. Then the other day on wet pavement i was stopping but I wasn't sliding. Any ideas would be appreciated. It is the 3.8 liter with Trac control

 

Probably a bad sensor or a bad wire going to a sensor. Worked on a buick awhile back that kept kicking abs on at stops and it was a bad spot in the lf wire going to the sensor. Best bet is to check the abs for codes and check the sensor speeds with a scan tool to fins out which one is causing the problem