Abstract: A system for on board diagnostic (OBD) vehicle communications that includes a vehicle communications device having a pin-connector adapted for connecting to a vehicle's OBD system and a network interface configured to perform network communications with a remote communications device connected with a vehicle scan and/or programming tool using a compatible pin-connector. The remote communications device includes a network interface configured to perform network communications with the vehicle communications device. The vehicle communications device is programmed and configured to receive communications from a vehicle's OBD system through its pinconnector and selectively filter communications based on message type received from OBD system. The selectively filtered communications are forwarded through a network to the remote communications device using the network interfaces.

Abstract: A method of remote communications with an on-board diagnostics (OBD) system of a vehicle includes connecting a vehicle communications device to a connector of a vehicle's OBD system, connecting a remote communications device to a connector of a vehicle tool device, and establishing a network communications link between the vehicle-communications device and a remote communications device. The vehicle communications device receives communications at the vehicle-communications device from the vehicle's OBD system through the connector. A bit stream of the received communications is analyzed over an interval of time. The widths of one or more bit pulses are estimated based on the analyzing of the bit stream. A bit rate of the OBD system is determined based on the estimated widths of the one or more bit pulses.

Abstract: A system for on board diagnostic (OBD) vehicle communications that includes a vehicle communications device having a pin-connector adapted for connecting to a vehicle's OBD system and a network interface configured to perform network communications with a remote communications device connected with a vehicle scan and/or programming tool using a compatible pin-connector. The remote communications device includes a network interface configured to perform network communications with the vehicle communications device. The vehicle communications device is programmed and configured to receive communications from a vehicle's OBD system through its pin-connector and selectively filter communications based on message type received from OBD system. The selectively filtered communications are forwarded through a network to the remote communications device using the network interfaces.