Extend 16pin Female to Male Connector for Car Diagnostic Tool Before your order, please kindly read the notice as below: The OBD adapter's main function is the communicate between your car and the diagnostic scanner (with 16pin Male connector). So if you find that the problems of communication, please don't leave us negative feedback, please ensure whether the scanner is compatiable with your scanner, because many scanners are not supported with the OBD vehicles. 500CM 16Pin OBD2 Extension Cable ELM327 ODB2 16 Pin ELM327 OBD II L Male to Female Extensions Cables Connector Interface Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.