Code reader will work on both import and domestic vehicles form 1982-2007 and both OBD1 and OBD2. Captures both intermittant and hard codes and displys all on one screen. All codes are stored in the internal memory for “off car” review at any time. Very user friendly simply select the appropriate connector , plug into vehicle ECM and press scan- the unit will scan the vehcile for trouble codes and clearly decipher trouble codes and display on screen