Abstract: An on-board diagnostics (OBD) interface device to provide an interface between a vehicle's OBD system and a wireless device. The device includes an OBD connector to physically connect to an OBD port in a vehicle so as to communicate with the vehicle's OBD system. The device includes a wireless interface to provide a communications link to the wireless device. The device includes a processor running a diagnostics program. The diagnostics program is configured as a web server so that it can be accessed remotely using any device having a web browser. The remote access to the diagnostics program provides a platform independent diagnostic program as any wireless device, regardless of platform, can access the program. The wireless device can perform diagnostics without the need for a diagnostics application being loaded thereon.