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Thread: OBDPRO + CAN Bus?

  1. #1
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    OBDPRO + CAN Bus?

    Ok I would like to add a carPuter to my new car.

    Though I have a problem, I need to read the CAN bus.
    Reason:
    I have a 2010 Hyundai Genesis Coupe which has a lcd screen for displaying HVAC, outside temp, music, and caller ID.
    I want to turn

    INTO


    * images from gencoupe.com(powerAXEL)

    Now all I need to do is read the CAN Bus (not OBD), not write to it.
    I just need to be able to read the CAN Bus, process it, then display it on my carPuter's screen.

    All OEM controls will be left as is, and the screen will almost be like a dumb terminal to display the info that the other screen used to display.

    Now the problem is that there seems to be NO support for Hyundai's for any of this CAN stuff.

    So I am going to have to do all the sniffing on my own.

    I am more than likely going to go with the OBDPRO USB SCANTOOL because Paul is active on this forum. I want to know if I am making the right choice or should I use something better?

    Also I have seen lots of software mentioned on the forums about this stuff, but it usually seems very make/model dependent (understandable). Is there a good program to just read and filter the Bus data?

    Thanks for any help. Cheers

  2. #2
    VENDOR - OBDPros
    Join Date
    Mar 2006
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    359
    tgpfarm,

    I have been doing some sniffing on the Hyundai's recently specifically a friends Santa fe, and a lot of the body controls are still on a specific ISO line that is not OBD II, not sure about the 2010 but I would suspect you might have the same situation.

    If you get the right angle cable then you can switch the pins internally to allow communications on the ISO bus also if you decide to hack away at the various buses. Some of the data like door status etc might also be on the can bus...

    Thanks
    Paul
    OBDPros scantool

  3. #3
    Low Bitrate BCasey's Avatar
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    Sep 2008
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    CanHacker is what I've used, gives you the Hex values for all the messages, allows capture replay, etc, etc
    New Project in the Works

    Previous Worklog here

  4. #4
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    Quote Originally Posted by michbound View Post
    tgpfarm,

    I have been doing some sniffing on the Hyundai's recently specifically a friends Santa fe, and a lot of the body controls are still on a specific ISO line that is not OBD II, not sure about the 2010 but I would suspect you might have the same situation.

    Thanks
    Paul
    OBDPros scantool
    Paul,

    Let me see if I am picking up what your putting down, your saying that the CAN ISO lines are not at the OBDII port? If thats the case I kinda already figured that. I had the radio disconnected before and went to the store. Found out my turn signals didn't work, well at least the indicators inside didn't work. So I know all that stuff is going though the radio.

    I was planning on taping into the CAN lines that go right to the display. I was just going to get a female plug for the OEM display and plug in my CAN reader.

    And the OBDPro USB Scantool would be able to sniff the bus right? And would be supplied with decent software to do this?

    Thanks for the help!

  5. #5
    VENDOR - OBDPros
    Join Date
    Mar 2006
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    359
    The Can lines do go to the OBD II port but the OBD II port also has a K line on pin 12 I think that talks to the Body control module.

    There is not a whole lot of software to monitor, but I have a utility that let's you replay messages that you have captured via ATMA command and can share that if you like.

    Thanks
    Paul
    OBDPros Scantool

  6. #6
    Newbie
    Join Date
    Oct 2003
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    Wow!! I hate to revive an old thread, but I am looking at doing the exact same thing.

    I also have a 2010 Hyundai Genesis coupe, and the same above pictures (unavi) are what got my brain working as well.

    What I do know is that certain coupes have a different LCD (if it is factory equipped with nav or not), however the pinout connector is EXACTLY the same, so I am wondering if something in the blue LCD (highlighted above) is what determines what data feed it picks up.

    Were you ever able to make progress on this, or perhaps anyone else possibly able to help me get started on the same project listed above?

    Thanks!

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