Where is terminals 1 and 4 on diagnostic connector for 2003 Mitsubishi diamante?

On a 2003 Mitsubishi Diamante, the diagnostic connector is typically located under the driver's side dashboard, near the steering column. Terminals 1 and 4 on the OBD-II connector correspond to the positive and negative battery voltage, respectively. Always ensure the ignition is in the "ON" position when accessing these terminals for accurate readings.