General: Volvo CANBus Logger - Dice

[mikeak_2001]

Good afternoon all.

It's been a while since posting on these forums so today I have something different.. well for some people anyway.
A few people may be aware of what I am showing below, if so and you can expand on this subject It would be great to educate more about the way Volvo's are programmed and calibrated.

All information and software given below is installed with as standard with Vida/Dice(genuine).

I am posting this information for two reasons, one to help others and two, hopefully to get some feedback which may help me.

I've done some extensive searching to no avail.

So here we go:
Vida dice comes with an application called Flight recorder.
When all else fails, after normal diagnostics. Parameter checking etc. A Canbus log may be required in order to trouble shoot software bugs etc.

Volvo dice drivers come with an application called flight recorder.



Within this we can load a config file onto the Dice SD card.



By using a trigger lead shown below, when a particular fault appears, for example "hesitation", "stall", "rough gear change". You can press the big red button and dump all the Canbus commands seen on the network at that particular time in accordance to the config file configuration.



Once the test drive has been completed you can then extract the file from the SD card in the Dice unit. This file will be encrypted like below and is best opened via the flight recorder application. This application will decrypt the file and allow you to extract High speed/Low speed or both Canbus data logs.
You can then extract and save the decrypted data as a .asc file.





From this point unfortunately we become stuck. I believe Volvo must use another piece of software in order to decipher what the hex means.
This is the point in which I ask if anyone else has any experience using this. There doesn't seem much information online regarding it.

[SwissXC90]

I have experience with the hex and decoding the CAN bus messages on my MY2009 XC90

What do you want to know?

BE AWARE that CAN bus addresses change MY as the address governs the prioritization of messages, and is thus related to fitted equipment, which is MY dependent.

So when Volvo compile all the CAN bus data when releasing the code for the particular MY, the addresses are set automatically, and may be different from previous MYs.

[mikeak_2001]

Hi SwissXC90

Thanks for the reply. To give you a bit of a background. I work in a dealer so I am aware that the hex parameter and ID's change with MY.

This kind of stuff is not done by Dealer Staff. If a car can't be fixed a log will be made and passed to Volvo Technical staff who will work things out from these logs. Then organise a fix.

To give an example:
There is a new thread about XC60 Auto's stalling.
https://www.volvoforums.org.uk/showthread.php?t=262898

I have a family member suffering the same issue. As per others. This has been booked in to the dealer. Usual thing, no fault codes so Volvo have dismissed the issue saying its a driver problem, even though more people are coming forward with the same fault.

This software would now be used to idetify the erroneous data that causes the shutdown then the module software could be modified to fix the issue.

So for reasons like this I was wondering if anyone knew of compiled data or software that could convert the hex data to readable data. By identifying the problem data I can then look at a work around for the problem.

The other work around of course would be to use GGD_DHA however vehice database files would be needed and they are hard to come by too.