The Vehicle Bus Analyzer (VBA) is a conventional oscilloscope that “speaks the engineer’s language” by decoding CAN serial data into Symbolic (application layer) text. The unit gives engineers both the full range of CAN protocol stack information — symbolic, hex, and electrical signal — with the ability to also view additional in-circuit electrical signals (sensor inputs, voltage levels, and transients) that influence the CAN Bus, and to use standard and specialized oscilloscope tools to validate and debug their designs. In addition, up to four different CAN Buses can be decoded at one time. The VBA is suitable for CAN electronic control units (ECUs) or complete vehicle networks. The VBA contains powerful features such as complete CAN physical layer and protocol stack information display for multiple CAN Buses, compatibility with industry-standard DBC database files, display of associated non-CAN electrical signals, automated timing measurements with statistical and graph views, the ability to extract CAN data from a message stream, rescale it, and display/plot decimal value, and pulse-width modulated signal analysis. The unit also features standard 2 Mpts/channel memory, 5 GS/sec on all four channels, up to 1 GHz bandwidth and powerful CAN and electrical signal triggering to isolate events.