AutoXray / Actron ABS Brake Scan Tool AX9769 Reads ABS Trouble Codes Understand why the ABS brake light is on. Works on most GM, Ford and Chrysler vehicles 1996-2005 Displays ABS trouble codes and definitions. Plugs into your OBD II port. Diagnoses wheel speed sensors, ABS solenoids, brake control module, ABS pump motor and more.