We have published a short video showing the PulseView logic analyzer UI with our can2 protocol decoder. The video shows how to set PulseView up to record CAN traces, how to navigate around those traces, and how it shows unusual events on CAN (we use the CANHack toolkit to inject CAN overload frames in a loop).
We used the Saleae Logic16 in the video but there are USB 8-channel 20MHz logic analyzers for less than $10, like this one:
It’s very easy to connect one up to the RX pin of a CAN transceiver and then see what’s happening in detail on a CAN bus.
