Sniff Kline Communication

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Sniff Kline Communication

Postby itsrealfast » Thu May 30, 2019 7:04 am

Hi,

I am looking to sniff Kline data from a scan tool and reproduce what its doing. The scan tool is for a 2002 to 2005 Honda Motorcycle. The system uses a K-line for diagnostics.

I would like to make my own tool that will read the fault codes and be able to clear them.

I still have to figure out the baud rate. Any suggestion on how to tackle that?

Any suggestion on a good cheap tool used to sniff Kline packets and properly display them.

I have a USB to serial converter connected to a MC33290 thats been working great but pretty crude setup. I am looking for an official product with nice user interface.

Please let me know your thoughts

Thanks again

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Re: Sniff Kline Communication

Postby antus » Thu May 30, 2019 5:57 pm

i'd say develop your tool further. i wrote a vpw protocol decoder for logic analyser in python, wasnt too hard, but the product hasnt been updated and never got windows drivers so I wouldnt recommend it now. If you have the data in byte form, or logic levels, it shouldnt be too hard to take it to the next level. Otherwise something like a J2534 tool and get the source code for pcmhammer and modify it so that it just sets k-line and reads and logs packets. There might be an off the shelf product out there but most the OEM products are expensive and the DIY products are similar to what you have.
Have you read the FAQ? For lots of information and links to significant threads see here: viewtopic.php?f=7&t=1396

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Re: Sniff Kline Communication

Postby itsrealfast » Fri May 31, 2019 6:23 am

antus wrote:i'd say develop your tool further. i wrote a vpw protocol decoder for logic analyser in python, wasnt too hard, but the product hasnt been updated and never got windows drivers so I wouldnt recommend it now. If you have the data in byte form, or logic levels, it shouldnt be too hard to take it to the next level. Otherwise something like a J2534 tool and get the source code for pcmhammer and modify it so that it just sets k-line and reads and logs packets. There might be an off the shelf product out there but most the OEM products are expensive and the DIY products are similar to what you have.


Hi thanks for your response. I have a Tractix cable and was thinking of buying a AVT-852 from AVT. I just need someone that I can send the logs to they figure out the communication and type up how it works. I'm willing to pay a freelancer if anyone is interested.

Thanks

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Re: Sniff Kline Communication

Postby Tazzi » Fri May 31, 2019 1:29 pm

Best way to learn is through trial and error. Also read up on some examples about Kline and understand how the actual protocol works and example packets.

Once you understand how it actual works and examples frames, you can apply it to the logs you get :)
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