ecoRoute hd is an easy-to-install device that transforms your compatible Garmin nuvi into a real-time diagnostics computer to help you conserve fuel and money through fuel-efficient navigation. The ecoRoute hd will send engine and emissions data from your car's diagnostic system to n vi and accurately calculate your fuel consumption carbon footprint engine performance and more. Plus ecoRoute hd reads and displays OBD II diagnostic trouble codes in plain English and allows you to reset the check engine light. Package includes: ecoRoute hd zip ties adhesive tape installation instructions Product compatibility: nuvi 1690 1490 1390 1370 1260