Audi A6: What do these ID codes mean?

Hello,
I test drove an Audi A6 4G.
I am interested in the following IDs:

080 likely has something to do with load. This could be related to boost pressure, generator load, or possibly power consumption.
100 da ist die Geschwindigkeit mit drin. Bytes 6 and 7.
102 is likely the MMI status.
105 is one of the speeds involved.
641 completely unknown.
6B4 is the chassis number.

I am most interested in the IDs 0x080 and possibly 0x641.
If anyone recognizes this part (even if it's from other Audi vehicles), please contact me.
The list written above can, of course, be supplemented or corrected.

I would be grateful for any information.

Thank you.

Hello,

That would also interest me.

Are there any updates yet?

Hello,

I have an Audi A4 8K.

There is 0x100.

Start bit Length Naming Factor unit of measurement
24 24 moderate speed: 0.0004 km/h
48 01 ESP Switch 1.

I don't know the rest.

0x105 J623

16 16 Speed factor 0.245 RPM.
32 1 Nitrogen gas.
33 1 Cup2
34 1 Brake light.
35 1 Brake engaged.
37 1 Kuppl2
39 1 Engine run.
48 8 Accelerator Pedal Factor 0.4 %
56 8 possibly voltage 0.05 V.

Check if it's the same for you.

I've started a diet and exercise program.

Best regards, Ulli.

What program did you use to create this file?

Ulli13 wrote:

Hello, I have an Audi A4 8K. There is 0x100. Start bit Length Naming Factor unit of measurement 24 24 moderate speed: 0.0004 km/h 48 01 ESP Switch 1. I don't know the rest. 0x105 J623 16 16 Speed factor 0.245 RPM. 32 1 Nitrogen gas. 33 1 Cup2 34 1 Brake light. 35 1 Brake engaged. 37 1 Kuppl2 39 1 Engine run. 48 8 Accelerator Pedal Factor 0.4 % 56 8 possibly voltage 0.05 V. Check if it's the same for you. I've started a diet and exercise program. Best regards, Ulli

At address 0x100, I'm observing the speed signal at...
Start bit: 32, Length: 16, Factor: 0.01.
come.

I also have a Bit 48 ASR with a button to turn it off.

Bit 50 could represent a status indicator. It is set to 1 when the ESP/ASR system detects an error (e.g., the wheel speed sensor is disconnected).

Bit 56 is set to 1 during an ABS braking event.

Bit 61 during an ESP intervention.

Bits 8-11 are likely the alive counter.
Bits 0-7 contain the checksum (which I've checked multiple times and it is correct).

I once stumbled upon the 0x105 address by chance.
Bit 40, length 8: the idle speed could be a factor of 10.
At least, it matches when compared to the measurement data blocks.

Best regards,

Mackhack wrote:

Which program did you use to create this file?

Vector had a data-based editor that could do that.
It's an older DOS program that now only runs from a USB stick.
works. However, there are also new database editors, but I find them too...
can be complicated.

For viewing purposes, I borrowed the Vector CANalyzer from work.

Best regards, Ulli.

P.S. To the moderator: If you're already dealing with Can, please also include the DBC file as an attachment. Without it, nothing will work in any company.

Speed 32 16 with a factor of 0.01 works; they seem to be doing well with it.
I'm seeing the signal in compartment 30B, and on the Comfort CAN bus in compartments 3C3 and 3C4.

The Bit 50 might be a so-called "Sensor Memorybit." In our system at EBS (Omnibus), this error occurs with any fault in the wheel sensor and only clears when the speed is detected on all wheels again.

Best regards,
Ulli