OBD1 to OBD2 Diagnostic Connector Adapter 14 Pin OBDI Cable for Mercedes Benz Sprinter1. 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 compatible with your scanner, because many scanners are not supported with the OBD vehicles. 2. The inner coil of cables are not fully as the pin shows, because the main function for cable is