Provided is a method of receiving data from a vehicle having an onboard computer. The vehicle identification data location on the vehicle is optically scanned and matched to a second protocol database to identify the specific protocol useful for retrieving desired diagnostic data from the vehicle. A diagnostic device is connected to the vehicle onboard computer and polls the onboard computer to identify a protocol useful to establish a communication link between the diagnostic device and the onboard computer. Once the communication link is established, the diagnostic device is configured communicate an information request to the onboard computer in the specific protocol(s) associated with vehicle identification data. The diagnostic data received from the onboard computer may then be communicated to a remote diagnostic database, via a cellphone, to identify a possible vehicle fix(es) for defects associated with the received diagnostic data.