General description GM 12 pin connector to OBD1 to OBD2 16 pin. This 2 Pack Converter Linker Diagnostic Cable allows you to use OBD OBDII diagnostic tools with vehicles equipped with a 12 pin connector. Technical specifications Length: 40 cm Material of base: metal Color: Black Usage This cable is widely used in vehicle fault diagnosis instruments, vehicle fault detectors, and engine fault diagnostics. Other information Product Packing List: 2 x 12Pin to OBD1 to 16Pin OBD2 Connection Cable.