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Thread: How to get id drivers can by ELM327? Or How set ELM as sniffer?

  1. #1
    Join Date
    Aug 2013

    Post How to get id drivers can by ELM327? Or How set ELM as sniffer?

    I'm new and I'm trying to write software to ELM327.

    I have some problem and some questions.
    How to get id drivers CAN for example ECU, ABS etc?
    Do ELM327 can check what is being sent on the CAN line in the car?

    Because I want to send CAN frame into the car and query specific drivers.

    I will be grateful for any tips and links

  2. #2
    Maximum Bitrate
    Join Date
    May 2012
    Grandville, MI
    You need to do a search on the net. There are other threads on here and other places that can get you started. Google Search is your friend.

    You will likely need a factory manual for your car depending on what the year and make are to find out what the ID's are for what modules. In my GM manual for my 2003 Avalanche they are listed by module, what they support and what their ID's were. Beyond that you won't find much information beyond the generic information about what you do to control each module. More specifics will depend on your vehicle and if you can do a search and see if anyone has posted information.

    To get the information from the manufacturers depends on the manufacturer but generally they will only release the information to a business, you need to sign a non disclosure agreement and it generally is costly.


  3. #3
    Constant Bitrate
    Join Date
    Sep 2009
    as already mentioned, you have to search the net and hope someone already figured out the msg id's you are looking for. most manufactures don't publish their proprietary interface data. it's also usually different for every car brand, and varies between year ranges or models sometimes too. querying for basic engine stats is standardized, but stuff like ABS is going to be make/model specific most likely.

    you might find my blog articles on how to go sleuthing for that sort of info useful, particularly the second one:

    good luck

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