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    Would the low-cost J2534 devices on the market...

    Would the low-cost J2534 devices on the market suffice (e.g. Mongoose from http://www.drewtech.com/products/mongoose.html, ValueCAN from http://intrepidcs.com/catalog/produc...products_id/35)? I...
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    ELM is a perfectly good device for getting OBD...

    ELM is a perfectly good device for getting OBD data (and even getting and sending non-OBD data), but there are other devices out there which provide a higher throughput and more robustly programmable...
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    How much gas? If the vehicle is "new enough"...

    How much gas? If the vehicle is "new enough" (probably post 2005, but certainly earlier on some vehicle models) you can obtain fuel level from OBD. To do that, you would also need some piece of...
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    If you are interested in programming against the...

    If you are interested in programming against the vehicle (in .NET), you might find the Cardix programming model to be useful. It provides support for J2534 devices and comes with sample...
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    This would be a good device for OBD data, which...

    This would be a good device for OBD data, which is likely all you could get off that model year:
    ...
  6. The ELM device is good for request/response data...

    The ELM device is good for request/response data (which is the case for OBD data), and marginally useful for watching low-rate broadcast data, but it is not well suited for watching high rate traffic...
  7. I would recommend a J2534 compliant device (the...

    I would recommend a J2534 compliant device (the Mongoose from Drew Technologies http://www.drewtech.com/products/mongooseiso.html or the ValueCAN from Intrepid Control Systems...
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    I think the 9-pin you're referring to is the DB-9...

    I think the 9-pin you're referring to is the DB-9 connector that connects to the ELM device. The other end of that cable has a J1962 (16-pin) trapezoid-shaped connector which is what plugs into your...
  9. I'm glad to hear that the newer DLLs fixed the...

    I'm glad to hear that the newer DLLs fixed the problem. The download now has these new DLLs incorporated.

    As for licensing, I'm still working through exactly how the MsgMon utility will be...
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    Admittedly, the J2534 devices tend to cost more,...

    Admittedly, the J2534 devices tend to cost more, but they also tend to have some advantages: They tend to provide better throughput for high data-rate networks (e.g. CAN), and they also allow for...
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    It depends on what exactly you mean by "J2534...

    It depends on what exactly you mean by "J2534 software." There are certainly devices out there which expose a J2534 programming interface (drewtech mongoose, intrepid valueCAN, and certainly other...
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    I would heed what michbound suggested, and that...

    I would heed what michbound suggested, and that is to turn headers on (presumably you're using an ELM or ELM derivative device, in which case you would do this with the "ATH1" command). When you do...
  13. Revealed. All true.

    Revealed. All true.
  14. You might find this rudimentary message...

    You might find this rudimentary message monitoring utility to be of use in watching CAN traffic (and other kinds of vehicle network traffic). As it appears in this download, it works with the...
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    Yes, most devices that are used to get OBD data...

    Yes, most devices that are used to get OBD data can also get non-OBD data (e.g. odometer). Fuel level is a legislated OBD parameter, but many vehicles do not provide the value (typically, the older...
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    If I might ask, what connection hardware are you...

    If I might ask, what connection hardware are you using to connect to your vehicle (e.g. ELM, Mongoose, etc.), and what network(s) did you find on the vehicle (e.g. J1850VPW, CAN, etc.)?

    Thanks.
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    I agree with michbound that the 0x7f??12 response...

    I agree with michbound that the 0x7f??12 response is probably from a second controller.

    The 0x7f response is a negative response (are you seeing this on ISO14230?) while the ?? part indicates the...
  18. The Cardix programming environment (see a nearby...

    The Cardix programming environment (see a nearby thread entitled "An easier way to write software that interacts with your vehicle" for more info) runs on the .NET Compact Framework, so this would...
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    Poll: Lukeyson gives a good description of the...

    Lukeyson gives a good description of the landscape for devices that connect to the vehicle. I suppose that a rough breakdown in the ways these devices can be used might be:

    1) sending and...
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    Just curious ... to what kind of vehicle are you...

    Just curious ... to what kind of vehicle are you connecting the OBDKey?
  21. An easier way to write software that interacts with your vehicle

    If you are writing software to interact with your car (e.g. read OBD data, read non-OBD data, actuate devices on your car, etc.), then you know the complexity involved in dealing with the...
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    Pins 7 & 15 imply ISO, but if you haven't found...

    Pins 7 & 15 imply ISO, but if you haven't found it then those pins could just be coincidence.

    The information you mention is already more than I know of.

    Sorry I can't help.

    Good luck.
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    Does the OBD connector below the steering wheel...

    Does the OBD connector below the steering wheel look like a trapezoid (i.e. the J1962 connector) with two rows of 8 pins each?

    I'm not sure what the European legal landscape is and when OBD was...
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    I have found a restraints module on an ISO...

    I have found a restraints module on an ISO network on a Ford vehicle at address 0x58. So, for example, to request passenger seat belt status, you might form the request like this:

    0x6458f1225a01...
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    Yes, I believe you can use the ELM327 to get DTCs...

    Yes, I believe you can use the ELM327 to get DTCs from controllers other than "the" PCM (engine controller, as opposed to the transmission controller, etc.), if the those other modules are designed...
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