Does the 1997 mercury tracer have anti lock brakes?

No, anti-lock brakes (ABS) were not standard on the 1997 Mercury Tracer. They may have been available as an option on some higher trim levels, but it wasn't a standard feature across the board. To know for sure if a specific 1997 Mercury Tracer has ABS, you'd need to check the vehicle's documentation or look for an ABS warning light on the dashboard.