Reverse Engineering Automotive Codes

[shawn957376]

I'm trying to reverse engineer automotive codes on the CANBUS with PCAN Explorer 5. Right now I'm trying to do simple things such has get the message for locking and unlocking car doors and rolling down the windows. However, there are thousands of messages that go across the BUS on a regular basis that its difficult to pick one or a set of particular messages. Is there an easy way to get these messages? What would be the easiest way to identify these messages?

I understand it would be easy to assign symbols to these reoccurring messages however, I have no idea what these messages are so how would I go about assigning a meaningful label to them?

Any help would be greatly appreciated

Thanks,

Shawn

[M.Maidhof]

Hello Shawn,

When you want to re-engineer an existing CAN bus with PCAN-Explorer, it will be helpfull when you trace the CAN bus, save that file to disk and check for different data on different actions with a texteditior. Please have a look on our website, there are video tuturials regarding howto create a symbol file.
When you don't have a database file (*.dbc) from the car manufacturer it will be a "try and error" work to find the right messages for controlling the different modules. Good luck!
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best regards

Michael

[p.erasmus]

When you don't have a database file (*.dbc) from the car manufacturer it will be a "try and error" work to find the right messages for controlling the different modules. Good luck!

I can only aggree with this ,you will spend many hours and if you are very lucky you will have 20% of what is actually the on the bus