VW Rückfahrkamera LOW und RNS 510

Guten Tag.

Ich habe einem Bekannten in einen US Jeep ein VW RNS 510 verbaut.
Die notwendigen Signale simuliere ich und gebe sie via CAN an das RNS weiter.
Funktioniert auch einwandfrei.
Nun will der eine Rückfahrkamera dran anschließen.
Also habe ich das RNS 510 entsprechend codiert.

Nun meine Frage: Auf welches Signal 'lauscht' das RNS um in den RFK Modus zu gehen?
Ich werde noch irre... Ich habe so ziemlich alles probiert doch es klappt nix.
Ich habe selbst einen Golf 6 mit RFK Low und kann dort also ständig loggen...
Und nun das kuriose: Ich habe beim Golf 6 so alle (mir bekannten) CAN Botschaften 'gekappt' die die Information 'Rückwärtsgang ist drin' transportieren.... doch die läuft fröhlich weiter.

Hat da irgendjemand Informationen zu?
Würde mich auch erkenntlich zeigen.

Gibt es irgendwo noch eine RW Gang info, die ich evtl. übersehen habe?
Hatte da schon an die BAP Kommunikation zwischen BCM und RNS gedacht... das kann aber nicht sein, da das ja auch im Golf 5 möglich ist, und der hat keine BAP Kommunikation.


Grüße an euch....

Hello, sorry for writing in english.
First of all, enter the RNS hidden menu and select "CAN". You will see the entry called "CAN Reversing". Now you can experiment with that.
I suggest to try following id's:

0x351, len:8, period: 200ms, data: 0x02 xx xx xx xx xx xx xx xx
0x470, len:5, period: 100ms, data: 0x20 xx xx xx xx
0x531, len:4, period: 100ms, data: 0x20 xx xx xx

Regards, Michal.

Hi and thank you for your reply.

Well... that is what i did first.
The RNS shows 'CAN reversing' when i put in the reverse gear.
But it won't show up the Camara image.

I now emulated the whole CAN stuff of a Golf 6 but it is still not showing the camera images.

And 'yes', the RNS is coded to 'Reverse cam low installed'

It's driving me crazy...

Everything works perfekt...
illumination, speed signals (0x359 & 0x527), reverse gear (When driving in reverse gear, the RNS recognizes it on the map), MDI works, OPS works (Installed it of a Golf 6 with the ECU).
I installed a VW DVBT TV Tuner and guess what happens when i put in the reverse gear... It shows the camera image of AV1 of the Tuner....
But i only want the original RGB camera Low, not the TV Tuner.

by the way.. the message 0x351 is not available in my Golf 6 !?!
Maybe that is a Problem...
Can you provide all 8 bytes of message 0x351?
Or is it maybe only a copy of 0x527?

Best regards, and many thanks.

0x351 on my 1Z Octavia pre-facelift contains speed and reverse/forward data.
It's 8 bytes long.

Code:

Byte 0: 0x02=reverse selected, 0x00=no reverse selected, 0x01=?? Speed = (byte1*(2^8)+(byte2-1))/190 Bytes 3-6 = all set to 0 Byte 7 = almost always 0 / sometimes 0x80 Example: 0x351 dlc:8 data: 006A6F0000000000

Maybe there is "klemme 15" emulation problem, and RNS don't know if ignition is on?

I will try to code "camera low" on my RNS and make some experimentations.

Cheers!

Thanks for your support...

Yesterday evening i had a chance to do some logging in a 2012 Jetta.
The ID 0x351 is available there... strange.
I then cut off this ID and the cam image was not showing up there anymore.

on Saturday i will emulate the 0x351 in the US Jeep and lets see what happens.

Why is VW using three speed signals in the infotainment CAN?
in the 2012 Jetta i could find 0x351, 0x359 and 0x527 !?!

Thanks for your support again.
If you need anything around VW CAN, just let me know..


By the way...

you wrote:
>>>> Byte 7 = almost always 0 / sometimes 0x80
the 0x80 indicates an error in that ECU, but i don't know exactly wich ECU sends the 0x351.
I can see that very often....
0x80 in the last byte of a message, and some seconds or minutes later it's gone...
When i go into the ECU at this time, i can see 'Sporadischer Fehler' (Temporary error??).
When the 'Verlenzähler' (Reset Counter) goes over 255, the failure is gone again.

Have a great day...

Hello,
about 0x80, yes i noticed that there are some messages, which telling to gateway (and interested modules) about particular module state. I called them "heartbeat". They are sent periodically, period is under 1s.
For example:
Id 0x543 (RVC) if byte 0 = 0x80 then gateway tells: RVC Malfunction.
If no such message, then gateway tells: No signal/communication.
But usually fault informations are located at the first byte of the message.

Have a creative weekend !