I built an arduino setup using a few of these:
https://smile.amazon.com/SMAKN-MCP2515- ... ds=mcp2515
To hook in and passively monitor each of the 3 CAN buses on my 2018 Leaf. After successfully reading messages sent from a BT OBD dongle I hooked it up to the car expecting to dump a log of the buses and got... nothing.
If I hook up a Y-cable and the BT dongle I can see the requests Leaf Spy sends and the responses the Leaf sends, but those are the only ones that show up (and only on the CAR-bus).
Is it possible to passively monitor the normal traffic on the buses? If so, any thoughts on what I could be doing wrong?
Let me know if I didn't provide enough information on what I'm doing. Here is the code I'm using:
My end goal is to monitor setting the charge timer to see if it's possible to somehow automate.