Why would the antilock brake light come on for a second when making a sharp left turn since the brake pads and rotors were replaced on a 94 Town Car?

IF it didn't B 4 then either the sensor is Loose - the wire going 2 it has a bare spot or even dirt or Metal from the pads or Rotor can cause it-the sensor has a magniate in it & will pick up metal-Sometimes the reluctor ring on the rotor is bad also maybe from the rotor being resurfaced incorrectly or broke in the process.