Unfortunately, there’s no set standard for CAN connections. The most common connector for high-speed CAN is a DE-9, with CAN high on pin 7 and CAN low on pin 2. However cables will differ, and ...

In Part 1 he designs a cheap, custom CAN bus sniffer using an Arduino, a MCP2515 CAN controller and a CAN bus driver IC, demonstrating how this relatively simple hardware arrangement could be used ...