How to check CAN lines

Ever wondered how to check CAN lines in your vehicle but were lost or afraid to do it, come along as I show you how.

[astrogate]

Are you connecting the scope ground (stacked together) to a chassis ground? Thanks!

[odanebarnett]

I didn't hear anything about the pins on the breakout box ?

[relguajiro]

where did you get those type of connectors

[MrHammond]

I have just per purchased the same break out box and have noticed that the led indicators next to the can lines do not flash or show activity? Is your unit the same or is the cameras frame rate hiding it?

[carsprogrammer]

Hi sir tell me name this device please

[DuaneDonaldson]

CAN C riding on 0V bias, does not sound correct for high-speed CAN C, I thought high-speed bias was 2.5V?? I see you are on pins 6 & 14. It looks like your BOB is a knockoff as the 2 rows of pins are upside down so they are trying to avoid copyright issues. Maybe knowing the exact vehicle might clear things up??? Zooming in on a waveform has its place but zooming out is also needed for an overall picture of the General condition of the packets, maybe they are just repeating showing an actual problem. The trigger also has its place but we also need to view the waveform without a trigger so what I have mentioned here is 4 scenarios and a little extra time to give a thorough inspection, cheers.