Product Overview This high-quality adapter cable is designed compatible with GM vehicles manufactured before 1996. It allows you to connect a vehicle equipped with a 12-pin OBD1 socket to an existing 16-pin OBD2 diagnostic tool. Important Compatibility Notes: Adapter Only: Please note that this item is just a cable/adapter, not a diagnostic scanner. It does not contain any software. Specific Compatibility: This cable is NOT compatible with ELM327 scanners. It is designed for use with professional diagnostic tools suitable for GM OBD1 protocols. Key Features Vehicle Compatibility: Specifically connects the 12-pin diagnostic port found on older vehicles (compatible with GM models) to a standard 16-pin OBD2 female connector. Plug & Play: Easy to use with no tools required. Installs in minutes to bridge the connection between your car and your scanner. Durable Construction: Made with eco-friendly, high-quality materials to ensure durability and reduce environmental impact. Port Protection: Using this extension cable can reduce wear and tear on your vehicle's original diagnostic connector caused by frequent plugging and unplugging. Standard Interface: Features a 12-pin male connector on one end and a 16-pin OBD2 female connector on the other. Specifications Type: 12-Pin to OBD2 16-Pin Adapter Application: Suitable for GM Vehicles (Pre-1996) Length: 40cm Color: Black Material: Plastic Housing & Copper Wiring Connector A: 12-Pin Male (For GM) Connector B: 16-Pin OBD2 Female Package Includes 1 x Adapter Cable Compatible with GM 12-Pin to OBD2