JahyShow Car Diagnostic Extension Cable 12 Pin to 16 Pin Auto Car Male to Female OBD1 to OBD2 Adapter Connector Cable for GM Vehicles Diagnostic Tool;

Product Features
100% brand new and high quality.
Compatible with GM cars made after 1996.
Connectors: GM 12Pins OBD1 male connector; OBD2 16pins female connector.
Used for connecting OBD II scanner and vehicle with this 12 pin connector which is specifically for GM.