RNS510 - speakers CAN Error

[Felixrising]

I just performed a rear brake change (used the EPB service option on Carista android app) and I ran a diagnostic sweep on the CAN bus. Came back reporting speaker errors alongside another CAN coding error (both of these errors were present before I did the EPB service - so unrelated)

I had noticed I don't have a front/rear fader option in the head unit, so I'm not surprised to see this error. But I do have some sound from the rear but most sound comes from the front speakers. Aftermarket Bluetooth works (both calls and music integration).

Does anyone have an idea what the cause might be and how to fix it???

Apparently the original owner had the RNS510 fitted after market (or the Bluetooth unit - my memory on this is foggy) so maybe shortcuts were taken or they had no clue...


Navigation
Part #: 1T0035680L
Coding: 04000402010000A10000 (hex)
Component: RNS-MID
Fault codes:
00871 Bass Speaker Front Right (R23)
00870 Bass Speaker Front Left (R21)
00873 Bass Speaker Rear Right (R17)
00872 Bass Speaker Rear Left (R15)
01523 Microphone for telephone (R38
00862 Antenna for GPS Navigation (R50 / R52)

Radio
Part #: 1T0035680L
Coding: 04000402010000A10000 (hex)
Component: RNS-MID
Fault codes:
00871 Bass Speaker Front Right (R23)
00870 Bass Speaker Front Left (R21)
00873 Bass Speaker Rear Right (R17)
00872 Bass Speaker Rear Left (R15)
01523 Microphone for telephone (R38
00862 Antenna for GPS Navigation (R50 / R52)

Telephone
Part #: 7P6035730B
Coding: 0A01000000010101 (hex)
Component: TELEFON
[Failed to check fault codes]

Back-up camera
Part #: 3C9907441
Coding: 30007 (decimal)
Component: J772__Rearview
[No fault codes]

CAN network gateway
Part #: 3C0907530Q
Coding: FDABFF47404612002003 (hex)
Component: J533 Gateway
Fault codes:
01044 Control Module Incorrectly Coded
01303 Telephone Transceiver (R36)

Media player
Part #: 5N0035342B
Coding: 010000 (hex)
Component: SG EXT.PLAYER
[No fault codes]

[kamold]

Do you have an amplifier?
Check under the front passenger seat.
RNS may be incorrectly coded (bytes 1 and 2) if you do have one.
That could explain the fader issue.

The gateway incorrectly coded is because they have added a device, but not ticked it in the installation list.
This likely will be the bluetooth (telephone) module. Not familiar with Carista and if it can edit the canbus gateway installation list, but it's not a big deal. Just causes a fault to log about incorrect coding. Doesn't affect functionality.

[Felixrising]

Hi,

Yeah, there is a Blaupunkt 5K0035456 with HW H06 and SW 0340.

I don't have a VCDS or VAG-COM. The Carista app is just for small tweaks to the car, it just happens to have the EPB service tool functionality which works over a ODB-2 Bluetooth ELM327 adapter.

I guess I need to find someone in Brisbane with VCDS and some knowhow to help fix the coding.

The coding looks quite straight forward, as you said Bytes 01 and 02.
From VW Radio Navigation System (RNS510) - Ross-Tech Wiki

RNS-510 coding:-
Byte 01 set value 01 (Volkswagen Sound System)
Byte 02 set value 04 (4 Speaker Channels (Front and Rear))

Should be it I guess.

[kamold]

Yep. fix your RNS coding that will give you fader and balance back, as well as fix up the sound which would have been loud and unbalanced before.
Then correct your canbus gateway installation list.
VCDS or OBD11 are your friends...

[Felixrising]

Is there anyone is Brisbane with a vcds or obd11 I can use?