DETECTION OF THIRD-PARTY DEVICES ON A VEHICLE BUS

Embodiments of the disclosure provide for detecting and avoiding conflicts with a device on a communications bus. According to one embodiment, avoiding redundant or conflicting communications can comprise listening to electronic messages exchanged on the communications bus and detecting a second device a second device communicating on the communications bus based on the electronic messages exchanged on the communication bus. The electronic messages can comprise requests for data and responses to the requests for data. For example, the communications bus can comprise a Controller Area Network (CAN) bus within a vehicle and the first device and the second device can comprise On-Board Diagnostic (OBD) II devices. Detecting the second device communicating on the communications bus can comprise detecting an address used by the second device.