Abstract: Vehicle diagnostic methods and systems are provided for providing predictive step-by-step troubleshooting guidance. One method involves determining a sequence of recommended troubleshooting actions for resolving a potential fault condition associated with a diagnostic code based at least in part on a vehicle component associated with the diagnostic code and metadata associated with the vehicle using historical diagnostics data and sequentially providing, within a client application at a client device, graphical indicia of the recommended troubleshooting actions in accordance with the sequence based on a respective probability of resolution associated with the respective recommended troubleshooting actions based at least in part on the historical diagnostics data.

Abstract: A decoding system for an optical identifier includes a feature detection module configured to locate an optical identifier on an item in a captured image. The optical identifier contains encoded data, the encoded data includes information about the item, the optical identifier includes a plurality of cells, and each of the plurality of cells has one of a first state and a second state. An enhancement module configured to generate an enhanced optical identifier by selectively mapping each of the plurality of cells to one of the first state and the second state based on states of neighboring ones of the plurality of cells. A decoder module is configured to decode the encoded data contained in the enhanced optical identifier to output the information about the item.