If you go back a page there is a link for the ops blog, you may have better luck there, and you might get this thread revived which would be sweet as wellAm I posting to a dead thread as well? I am very interested in it. I deal with vehicle CAN on a daily basis. Are you using any line termination for the tap? I see in the first few pictures there was not any resistors anywhere. Generally if you tap in to a CAN line somewhere, you will need a bit of resistance to cancel any noise on the line.
Also, how are you going about decoding the raw data, do you have some sort of database file or just going by trial and error? I have various database files for vehicle chassis CAN for other models that I deal with at work, but would love the same for my Jeep. Contact me via PM if you want.
Almost all of that would be in the domain of changing the ECU software between the TIPM and CCN modules, not so much just sniffing or sending out packets. The TPMS data might be an exception there, but I haven't explicitly looked for it yet.Great work! Found this while researching for some of my own similar projects. Great to be able to cheat off of someone elses work =)
How about TPMS tire pressure values? Any chance of tracking those down?
My 2013 JKUR does not display individual tire pressures, just "Left Low". Would be nice to be able to see them. Are you able to send a command to honk the horn (even briefly?) - if so, you could replicate the feature some other new cars have, that honk when you are airing up to let you know you've reached the target pressure. Particularly useful for Jeeps, since we air up and down so often. It's possible that this wouldn't work while stationary, without some other hook to query the tire pressure value, as the TPMS sensors don't normally broadcast while stationary...but I have some ideas there as well...
And what about pitch/roll attitude data?
Thanks again for sharing all of your hard work!
I have these.For those of you that have worked with wiring harnesses, do you have a suggestion on the right tool for removing and inserting wiring pins into the harness connectors? I've gone through a couple of el cheapo aftermarket harness connectors that fail easily if a connector is removed.
The answer is, yes, it is possible.I understand very little of this but it sounds really cool! By any chance is this the sort of thing that could allow the addition of switches to the OEM switch panel? I remember reading something about that being wired into the CANbus. Or is that something completely different?
The upgraded EVIC presents individual pressures, so I was hopeful that it was floating around on the CAN interior. If you happen to see it while you are sniffing around (unlikely I know, especially if you don't have the display on yours), let me know =)Almost all of that would be in the domain of changing the ECU software between the TIPM and CCN modules, not so much just sniffing or sending out packets. The TPMS data might be an exception there, but I haven't explicitly looked for it yet.