Abstract: Audio/visual maintenance information relating to vehicle diagnostics is exchanged across a network. In operation, a customer, such as an automotive mechanic, can establish communication across a network, such as the internet or a telephone line, to a technician provided by a supplier of various goods and/or diagnostic equipment. Once the network connection is established, the customer can describe symptoms and vehicle type to the technician. In response, the technician can provide both verbal and visual information to the customer. The visual information can include streamed-video images, electrical and mechanical diagrams, drawings produced by the technician, various electronic waveforms measurable by an oscilloscope and the like. By using a combination of visual information to supplement verbal descriptions and instructions, the customer can more easily and quickly comprehend information provided by the technician.