Abstract: A system and method are provided for connecting a device to an automotive diagnostic port of a vehicle. The method includes the steps of sampling a signal on each pin of a plurality of pins of the automotive diagnostic port to generate a signal map corresponding with the automotive diagnostic port, selecting a configuration from a list of configurations for the automotive diagnostic port based on the signal map, establishing communication with the vehicle via the automotive diagnostic port based on the selected configuration. The method may be performed by a system that includes at least one of a device connected to the automotive diagnostic port of a vehicle, a mobile device, and/or a server.

Abstract: A system and an application-specific integrated circuit are provided to interface with an automotive diagnostic port. The application-specific integrated circuit includes a plurality of automotive general purpose input/outputs and a digital toolbox. Each automotive general purpose input/output is coupled to a pad of an input/output port configured to be connected to a corresponding signal included in the automotive diagnostic port. The digital toolbox includes a number of modules configured to perform digital signal processing and a switch matrix coupled to the number of modules. The ASIC is specifically designed to be connected to a vehicle's electrical environment via an automotive diagnostic port connector included in many cars and light duty trucks sold worldwide as well as some commercial vehicles.