Below I have the (with me) famous CAN IDs that I measure on the Infotainment Bus of my Audi A4 B6 displayed.
The messages are 1 to 8 bytes long (00 01 02 03 04 05 06 07) and are usually Hexadecimal. On some identifiers are ASCII texts (readable content) displayed. Audi has a limited ASCII table. This I will also publish on the website.
ID | MSG | Bytes | Ascii | Description |
261 | 54 45 53 54 20 20 20 20 | 8 | Oui | First line of content on FIS |
263 | 54 45 53 54 20 20 20 20 | 8 | Oui | Second line of content on FIS |
265 | 54 45 53 54 20 20 20 20 | 8 | Oui | First line of content on FIS (high priority / used by phone) |
267 | 54 45 53 54 20 20 20 20 | 8 | Oui | Second line of content on FIS (high priority / used by phone) |
271 | 10 | 1 | Non | Position of the ignition key; 10 means key out of ignition |
351 | 00 6E 10 AE 09 76 75 05 | 8 | Non | Byte 0, 00 ahead / 01 backwards |
351 | 00 6E 10 AE 09 76 75 05 | 8 | Non | Byte 1 en 2, speed; swap byte1 and byte2, 106E. Decimal / 200 = 21Km/h |
351 | 00 6E 10 AE 09 76 75 05 | 8 | Non | Byte 4 en 5 Wheel pulse; calculate distance travelled |
353 | 20 F5 0C 65 80 6F | 6 | Non | Rpm; swap byte1 and byte2, 0CF5. Decimal / 4 = 829 rpm |
353 | 20 F5 0C 65 80 6F | 6 | Non | Byte 3 indicates the Coolant Temperature in degrees Fahrenheit. (-32 / 1,8 = Celcius) |
428 | 16 01 00 00 00 00 00 00 | 8 | Non | Ring-ID, KI zoekt Rns-e. Reply with; 436 [1A] (on phone), of 428 [08] 01 00 00 00 00 |
436 | 1A 01 00 00 00 00 00 00 | 8 | Non | Ring-ID, KI is looking for phone. Reply with; 43A [08] 01 00 00 00 00 |
436 | 16 02 80 00 00 00 | 6 | Non | Rns-e first sign on the ring |
43A | 1A 02 80 00 00 00 | 6 | Non | Phone initial notification on the ring |
461 | 37 30 01 40 00 00 | 6 | Non | Up button Rns-e |
461 | 37 30 01 80 00 00 | 6 | Non | Down button Rns-e |
461 | 37 30 01 00 40 01 | 6 | Non | Left button Rns-e |
461 | 37 30 01 00 20 01 | 6 | Non | Right button Rns-e |
461 | 37 30 01 01 00 00 | 6 | Non | Previous button Rns-e |
461 | 37 30 01 02 00 00 | 6 | Non | Next button Rns-e |
461 | 37 30 01 00 10 00 | 6 | Non | Selection button (big round) Rns-e |
461 | 37 30 01 00 02 00 | 6 | Non | Return button Rns-e |
461 | 37 30 01 00 01 00 | 6 | Non | Setup button Rns-e |
5C0 | 39 00 | 2 | Non | Passive state Multifunction steering wheel |
5C0 | 39 02 | 2 | Non | Left button Multifunction steering wheel |
5C0 | 39 03 | 2 | Non | Right button Multifunction steering wheel |
5C0 | 39 04 | 2 | Non | Up button Multifunction steering wheel |
5C0 | 39 05 | 2 | Non | Down button Multifunction steering wheel |
5C0 | 3A 1C | 2 | Non | Mode button Multifunction steering wheel |
602 | 89 12 30 00 00 00 00 00 | 8 | Non | Activates the Tv/Video option in your RNS-E |
604 | 81 00 00 00 00 00 00 00 | 8 | Non | Always stays the same |
621 | 10 49 3C | 3 | Non | Byte 0 responds to Driver's door and engine lid |
621 | 10 49 3C | 3 | Non | Byte 1 en 2 increases when contact is passive. LSB,MSB |
623 | 00 14 25 54 12 03 20 16 | 8 | Non | Time / Date; xx HH MM SS DD MM YY YY |
627 | 80 3a 3a 3a 3a 28 28 28 | 8 | Non | Byte 0 responds to Driver's door, 0 Closed / 8 open |
627 | 80 3a 3a 3a 3a 28 28 28 | 8 | Non | Byte 0 (2e Digit) responds to status FIS screen; 0, default, 1 registration FIS, 4 is P (Gear) |
627 | 80 3a 3a 3a 3a 28 28 28 | 8 | Non | Byte 1tm7 standaard 28. 1tm4 becomes 3A when FIS is active. All 00 when no FIS activity |
635 | 39 00 10 | 3 | Non | Relief, byte1; 00 from / 64 at. |
635 | 39 00 10 | 3 | Non | Byte 2; dash lighting dimming percentage |
651 | C0 14 61 20 14 40 | 6 | Non | Always the same position |
653 | 01 01 14 | 3 | Non | Always the same position |
661 | 83 01 12 37 00 00 00 00 | 8 | Non | Rns-e On, byte 2 (37) indicates the mode, in this case VIDEO |
665 | 6F 20 00 00 30 00 20 | 7 | Non | This message is sent to indicate phone activity |
6C0 | 8 | Oui | Used for Rns-e to FIS screen (explained in other post) | |
6C1 | 8 | Oui | Used for Rns-e to FIS screen (explained in other post) | |
6C4 | A0 0F 8A FF 4A FF | 6 | Non | Keep alive request from KI for Phone |
6C5 | A3 | 1 | Non | Answering keep alive request Phone to KI |
I know of a number of Ids (still) not exactly what the messages tell exactly. These identifiers / posts I have shaded in red.
[whohit]known CanIDs[/whohit]
You may find this information on the VW/Audi can bus helpful. https://docs.google.com/spreadsheets/d/1eirT8LbSRl4j06BpwgsiE4PM_2BGH9UStdWLXwKvHJw/edit?hl=en&pref=2&pli=1#gid=0
It came from a Golf (I’m not sure what generation) but there is a lot of consistency across models. Much of this is coming from the convenience can.
Vic Moses
Thanks for this input Vic!
It indeed seems that some of the VW convenience Can has been ported to Audi’s Infotainment Can. Especially ID 621 is interesting (never looked at binary reading before). I will surely have a look at this!