Entering On-Board Diagnostics (Using DRB-II): Configure
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 1991 Plymouth Colt Vista, 1991 Plymouth Colt, 1991 Mitsubishi Mirage, 1991 Mitsubishi Galant, and 1991 Mitsubishi Eclipse. However, it is still accessible from the selected car via links, so may be relevant.
Press "3" key or press down arrow to display CONFIGURE option and press ENTER. Configure allows user to customize DRB-II display. For example, If metric system is more useful, select METRIC from the menu. All selections in CONFIGURE option remain active until user changes selection.