This Engine Control Unit (ECU) Module is designed for use in a Chevrolet Astro made in 1997. It is a vital component in the vehicle's engine management system. The ECU controls various aspects of the engine's performance, including fuel injection, ignition timing, and emissions control. This particular ECU Module has a manufacturer part number of 16229684 and an interchange part number of 590-04481. It is in good working condition and ready for installation.

Please note that this ECU Module may require programming to match the vehicle's specific VIN. Additionally, it is important to confirm compatibility with your vehicle before purchasing.