What are the terminals of a 16 pin OBD 2 DLC connector?

A 16-pin OBD-II DLC (Data Link Connector) features specific terminals for various functions. The key terminals include pin 1 (Manufacturer-specific), pin 4 (Chassis ground), pin 5 (Signal ground), pin 6 (CAN High), pin 14 (CAN Low), and pin 16 (Battery positive voltage). Other pins may be used for manufacturer-specific purposes or additional protocols, but these are the primary ones used for standard diagnostics.