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Thread: Setting Readiness - UDS controllers

  1. #11
    FoRT jyoung8607's Avatar
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    Quote Originally Posted by Uwe View Post
    I would think the single-wire is most likely LIN bus.
    That was my first thought, but none of the vehicle manufacturers nor Continental will say, beyond a statement from Continental about "bit serial communication with ECU". If it was LIN, one would think they could just say LIN. Maybe they make it in multiple variants. Or, maybe they cheesed up something very low-rate that can be bit-bashed with generic ECU actuator and sensor lines, so manufacturers could implement NVLD without needing an extra LIN or CAN bus driver chip. That's kind of where my mind went when I saw how long it takes to issue commands and receive responses from that log. IDK.

    Quote Originally Posted by Uwe View Post
    Jason Young?
    Never heard of him.
    Quote Originally Posted by Jack@European_Parts View Post
    Who's Jason Young?



    I had to fill a company name in the form, and "Jason's Garage For Volkswagens That Don't Run Good And Want To Learn To Do Other Stuff Good Too" DBA "Southwest Ohio Luxobarge Rescue" didn't have quite that ring of legitimacy to it. So I designated myself official forum representative for troubleshooting of evaporative emissions systems that are currently not broken.
    Silence gives consent.

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  3. #12
    Benevolent Dictator Uwe's Avatar
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    I really like "Southwest Ohio Luxobarge Rescue" !!!

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  5. #13
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    Quote Originally Posted by jyoung8607 View Post
    beyond a statement from Continental about "bit serial communication with ECU"
    Have you checked your wiring diagram, are there 2 wires to J909 ?

    It could be SENT protocol, many sensors on VW and Audi use this now.
    See for example SSP 547.

    8K0 906 651 C from your Golf R




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  7. #14
    FoRT jyoung8607's Avatar
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    Quote Originally Posted by NEtech View Post
    Have you checked your wiring diagram, are there 2 wires to J909 ?
    Yes. It appears to be single-wire, unless the protocol is (ab)using the ECU-supplied ground, through July 2018. From July 2018 (presumably MY 2019) it uses two wires, one of which is labeled CAN-LO, the other not labeled. Could be single-wire CAN, could be two wire with the other wire just not labeled, dunno.

    Quote Originally Posted by NEtech View Post
    It could be SENT protocol, many sensors on VW and Audi use this now.
    See for example SSP 547.
    Hrm... will research.

    Eventually I'll look at DMTL on the Atlas too, but I can't use the factory EOL readiness procedure right now, because it has a bad catalytic converter and I have no idea when it'll be fixed. The lead time on new catcons is so long/unknown that I was able to convince them to give me our Atlas back for now, instead of sit in a loaner for the duration.
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    What about setting Basic Setting for natural gas car?
    What are the requirements?
    Basic settings for catalytic converter and the O2 sensors fails.

  9. #16
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by Orchid70 View Post
    What about setting Basic Setting for natural gas car?
    What are the requirements?
    Basic settings for catalytic converter and the O2 sensors fails.
    Your ECU does not use the UDS protocol, so the question doesn't really belong in this thread.

    Moreover, there's little point in worrying about setting readiness until the engine is running correctly and isn't setting faults.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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