IT CAN IDs for A4 and A3 Models

Hello,

ich möchte mir ein Interface/Gateway bauen um eine R8 Rückfahrkamera in einem A4 B7 am RNS-E zu betreiben.
L"However, this isn't so straightforward because the CAN-BUS differs between the A4 and the R8 (the A3 is also compatible).

Therefore, here's a proposed solution: Tap into the IT-BUS from an A4 B7 and, via a microcontroller, convert it to a modified second IT-BUS. This modified IT-BUS would then be sent to the R8-RFK-SG. I have already completed a prototype MC (microcontroller) board. However, I now need more precise information about the IT-Bus IDs.

The following error codes appear when connected to an A4:

01299 - Diagnostic Interface for DataBus (J533)
004 - No Signal/Communication - Intermittent...

00457 - Control Module for Network (J519)
004 - No Signal/Communication - Intermittent

00466 - Control Module for Steering Column Electronics (J527)
004 - No Signal/Communication - Intermittent

01299 - Diagnostic interface for data bus (J533).
013 - Check Diagnostic Trouble Code (DTC) Memory.

Firstly, it seems that the R8-RFK-SG is recognizing that it's connected to an A4 based on the vehicle ID (065F). This ID could easily be swapped with an A3 ID.

Secondly, it's missing the steering angle sensor:
Steering Angle Sensor A3 = 03C3, 8 bytes of data
Steering Angle Sensor A4 = ?????? + Data - Are they compatible?

The speed signal and steering wheel position for both the A4 and A3 are 0351. Does anyone know if the data is compatible?"onTherefore, the following solution approach is proposed: Tap into the IT-BUS from the A4 B7 and use a microcontroller to transfer the data to a modified second [device/system].Send IT-BUS to R8-RFK-SG. I have already completed the prototype MC-board. However, I still need...The following error codes will appear when connected via an A4 interface:00457 - Control Module for Network (J519)00466 - Control module for steering column electronics (J527)."Firstly, it appears that the r8-RFK-SG module identifies the vehicle based on its Vehicle Identification Number (VIN), specifically recognizing that it is an Audi A4."It is located. The ID could easily be exchanged for an A3 ID.On the other hand, it lacks a steering angle sensor.LW-Sensor A3 = 03C3, 8 bytes of data.Best regards,Jackson.

Ich habe mich damit noch nicht so beschäfftigt, aber meinst du, die Dtane (Bildinformationen) kommen auch über den CAN Bus??ß Denke eher, das die Initialisierung darüber passiert, und der rest über MOST oder so läuft.
Kann It could also be wrong. It's just an idea.

Best regards,
PatrickIt might also be wrong. It's just an idea.Best regards, Patrick.

Hello,

nein das Bild kommt via RGB ans RNS-E, das ist wirlich das geringste Problem.

Selbst die Bildumschaltung wird nicht via Can gemacht, sondern via einezelnem Kabel vom BordnetzSG zum RNS-E gemacht.

It only concerns the CAN information that the RFk-SG needs to function correctly (speed, steering angle, etc.).
RWG-Ein-/Aus usw.) Und die scheinen sich zumindest in den ID's etwas zu unterscheiden...

Best regards,
Jackson.