The diagnostic connector (called the data link connector) on all models is located under the hood, on the driver side. On 1995 Protege and Millenia and all 1996–98 models, a second diagnostic connector (called data link connector-2) is located just under the drivers side of the dashboard, near the center console.
Models equipped with the data link connector-2, must use an OBD II compliant scanner or test equipment.