[OBD2 Diagnostic Cable] GM 12-pin to OBDII 16-pin cable allows you to connect an OBD1 12-pin socket to your vehicle using an existing OBD2 16-pin tool. Please note that this item is only a cable, not a scanner or diagnostic tool. [Suitable For GM Vehicles] 12 Pins to OBD2 16 Pins Adapter Scanner Cable used specifically for connecting your scanner and your vehicle, specifically for GM vehicles. [Plug & Play] GM 12-pin male to OBD2 16-pin female conversion adapter is plug and play, no installation tools are required and you can have it installed in minutes. Ideal for connecting your scanner to your GM vehicle. [Reduce Wear Of OBD Connector] By connecting the OBD2 extension cable, you can reduce the wear and tear on the OBD connector caused by frequent plugging and unplugging, and the connection cable protects the OBDII connector of your car. [High Performance] Utilized eco-friendly materials, reducing environmental pollution. Standard OBD2 diagnostic interface. Note：This For GM 12-Pin to OBDII 16-Pin Cable is just an adapter, NOT a scanner. OBD2 16 pin 3 in 1 OBD2 male to female OBD2 12pin to 16pin cable OBD2 splitter OBD2 16 pin male to female OBD2 Female to Cigarette Lighter Cable. Connector 1 OBD2 16 pin male OBD2 16 pin male OBD2 12pin male OBD2 16pin male OBD2 16 pin male OBD2 16 pin female. Connector 2 OBD2 16 pin female OBD2 16 pin female OBD2 16pin female OBD2 16pin female OBD2 16 pin female 12V DC connector. Wire Flat cable Round cable Round cable Round splitter cable Flat cable Round cable.