• HW Installation Support
  • CANBUS SWC not working

On my car (Opel Zafira B 2007) with CANBUS box (RP5-OP-001) the steering wheel buttons are not recognized. As requested, I recorded the CANBUS messages by printing them on the screen however saving these logs to text is apparently not working on my DUDU7 6+64GB unit with DUDUOS 3.6.

Buttons involved:

  • VOLUME UP
  • VOLUME DOWN
  • NEXT
  • PREVIOUS


The following frames output was printed when pressing the RIGHT buttons:

NEXT SONG -> 003403 @ FD 09 00 00 00 05 00 00 00 0E
PREV SONG -> 003435 @ FD 09 00 00 00 06 00 00 00 0F
VOLUME UP -> 003445 @ FD 09 00 00 00 01 00 00 00 0A
VOLUME DOWN -> 003455 @ FD 09 00 00 00 02 00 00 00 0B





The following frames output was printed when pressing LEFT the buttons:

HIGHER BUTTON: ANSWER VOICE DAIL -> 004155 @ FD 09 00 00 00 04 00 00 00 0D
LOWER BUTTON: HANG UP REJECT -> 004130 @ FD 09 00 00 00 07 00 00 00 10
SCROLL UP -> 004174 @ FD 09 00 00 00 08 00 00 00 11
SCROLL DOWN -> 004207 @ FD 09 00 00 00 09 00 00 00 12




Is this enough information to fix this or is more needed?

I am at DUDUOS 3.6 and I couldn't find the generated log file(s) after selecting print CANBUS msg to screen + save it in a log file. After printing no file appears on local disk.

I see "unknown CANBUS version!" in the version information section, I tried all the available options under XP(Simpel)->OPEL-> ...., none of them seem to get the SWC buttons to work.

What does work is:

  • Reverse + rear camera
  • Head lights on/off
  • Ignition off

Sidenote: the steps as mentioned in the "how-to-give-correct-feedback-on-canbus-errors" ticket are not correct anymore since the GUI changed in DUDUOS 3.6. The ticket needs an update.

@MotoVlad I tagged you because you mentioned to have the same problem...

    robbie_j Do you only have screenshots? Is there a full video?

    I have the same problem. Cannot find generated log files. If you find any solution, please share

    OK, good news, I figured since I got the signals it was weird that it was not working so I tried again and with below CANBUS settings I managed to get all the steering wheel buttons working!