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Reply With QuotePaul at obdpro did a mod on my scantool so it'd read SWCAN.
Which scan tool? I found out my bluetooth OBDLink doesn't support SWCAN. The cheapie bluetooth doohickeys do though.
(http://gtosoft.webs.com/comingsoon.htm)
In order to pick up the commands from the BUS you basically need to put your tool in sniff mode (where it passes all data seen on the BUS to your computer) with a filter for the desired node address so you don't get everything (there's gobs of data on the bus). Then when any data comes in from that node, your software see is it through the USB or serial interface and processes it.
Off the top of my head, you at least need to open the serial port, initialize it, initialize the ELM327 and then start waiting for data and analyzing it as it arrives. Could be as simple as a C# or VB app that runs .bat file hooks based on the header+data it sees.
Buffer overruns are inevitable unless you use address filtering or crank up the serial/USB port baud rate and get the scantool to match you.
Also I'm curious where you can send cables to get modded for SWCAN. I've done my own handy work so far but I'm looking for a more long term solution that provides more volume than what I can do in my spare time.
Originally Posted by tripzero
Paul at obdpro did a mod on my scantool so it'd read SWCAN.
Former author of LinuxICE, nghost.
Current author of nobdy.
Do you know if remote start is available on the SW CAN? That's on my list of awesome if it is...
Former author of LinuxICE, nghost.
Current author of nobdy.
Factory installed remote-starters can be controlled over GMLAN quite easily.
I'll see about making a video to demonstrate.
w00t. That'll save me from having to dissect my keyfob to start the car!
Former author of LinuxICE, nghost.
Current author of nobdy.
awesome! I'm assuming you had to send the door lock command first just like you would on the keyfob?
Former author of LinuxICE, nghost.
Current author of nobdy.
Is the method that you're using to discover the commands/methods to operate these functions on the car universal? I'm trying to start a big project with my Dodge Charger, but this CANBUS thing is really stopping me up, and nobody on the Charger forums seems to be knowledgeable about the system like this.
Lemme look into this a little bit.
In the mean time, post a pic of your OBD connector so I can see which pins are present. That is usually a good starting point. Assuming you have a pretty new charger?
Oh I haven't even gotten started on parts or anything, so I wouldn't know where the connector was.
It's a 2008 Charger.
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