VW Touareg / Audio Amplifier

I am repairing an audio amplifier with the part number 7L6 035 466 C (VW Touareg 2008).
I don't have a radio, but I do have a can tool. Is it possible to test an audio amplifier on a table?
When I start, I see ID:
0x433
0x56F

zmushko1004 wrote:

I am repairing an audio amplifier, part number 7L6 035 466 C (VW Touareg 2008). I don't have a radio, but I do have a CAN tool. Is it possible to test an audio amplifier on a table? When I start, I see ID: 0x433 0x56F

"Could you provide a brief overview of the amplifier's pin configuration?"
Perhaps it's enough to just tell him that the ignition is on.

Best regards, Rainer.

The audio amplifier is activated when there is data traffic on the CAN bus. This function is working correctly. All voltages are within acceptable limits.
However, for the sound to be heard at the amplifier's output, certain commands must be issued to enable the audio signal.

I fear that without examining the data traffic between the radio and the amplifier, we won't be able to make any further progress here.

Unfortunately, I don't know how the amplifier is addressed.

Here's the translation:

"Retrofit kits are available: 'Radio adapter for Touareg/T5/Octavia with DSP, compatible with factory-installed sound systems'."
Unfortunately, it's relatively expensive. Maybe you can find a similar solution for testing purposes.

Here's another idea: If you frequently work on repairs like this, it might be worthwhile to get a Chinese Android aftermarket radio for testing purposes. Many of these radios allow you to select the vehicle model they are intended for, and they then integrate properly with the car's CAN-Bus system.

Best regards, Rainer.

zmushko1004 wrote:

When I start, I see ID: 0x433 0x56F

The 0x56F might be an AUTOSAR NM frame. Try responding with frames 0x57F and 0x40 in the CBV. If you send this cyclically, it should keep the ECU active.

Good idea about the "Chinese Android aftermarket radio." I will consider that option.

Quote:

The 0x56F might be an Autosar NM frame. Try responding with frames 0x57F and 0x40 in the CBV. If you send this cyclically, it would keep the control unit active.

It didn't work.
I returned the audio amplifier and can't check it now.
Thank you everyone!

Thank you for the feedback!