A5 b8.5 rear view camera coding problems

[DAVE2121]

Hi new here, im looking to add a rear view camera to my A5 b8.5 s-line blackedition. I have parking sensors on back and front with the car display in reverse gear plus audio tone when getting close to objects. How do i get the reverse camera on the screen in reverse. Do i need to change some codes.
tia Dave

[Admin]

Moved this to the more appropriate forum section.

[hahnmgh63]

Are you seeing address 6C under your modules for the Backup camera? There is a backup camera module in the rear right electrics compartment. Are you saying you've already added this to your car or are you trying a direct connection?
My backup camera coding is: Coding: 1020008
It is the same on my 2013 S5 and my 2013 RS5.

[Smac770]

I'm sure there's something you probably need to do in the long coding of 5F or the green menu of MMI (I assume you have MMI 3G since you say you have OPS). But no idea what that would be. I'm sure there's content on retrofitting the backup camera for B8.5 already out there.

Looks like OPS might not require having MMI, seems it might be possible with just Radio as well. In that case, you'd have to eval the coding of 56, and there's no green menu for non-MMI.

[DAVE2121]

Hi sorry, which forum would be a better choice.

[DAVE2121]

Are you seeing address 6C under your modules for the Backup camera? There is a backup camera module in the rear right electrics compartment. Are you saying you've already added this to your car or are you trying a direct connection?
My backup camera coding is: Coding: 1020008
It is the same on my 2013 S5 and my 2013 RS5.

I have an A5 B8.5 8T 2014 coupe mmi nav+ I've bought an after market rear-view boot handle camera to replace the original boot handle that I'm looking at fitting.
At the moment when reverse gear is selected the mmi screen will change and i get the normal PDC image of the car with front and back sensors that light up when too close with audio beeping.
I do have the "rear-view camera" option in "mmi green screen" below the already highlighted "parking distance control" option. But if i tick that box then put it in reverse gear the mmi display doesn't change at all, it doesn't even show the PDC image, what am i doing wrong, are there and options in "mmi green screen" i need to change or VCDS codes that may help, I tried going into 6C but the vcds wouldn't connect.

[Smac770]

An aftermarket camera, or a used Audi camera? Aftermarket cameras tend to have the composite video signal (yellow plug) output. There's not an input for such to the J794, that I know of. The signal from the Audi camera is on the FAKRA cable, and goes to the J772 control module. That then overlays the overlay and sends the completed image to the MMI J794, again over FAKRA. Do you have the J772 module installed? If the J794 cannot interact with the J772, it probably assumes there's no video feed and doesn't attempt to display it.

Run a full autoscan log and post that so we can see what the car looks like from a control modules perspective.

[hahnmgh63]

So, what all does the J772 module do? I don't know. I know that the back-up video only comes on when the car is in reverse, and that it will stay on for a certain time when you come out of reverse (minute or so) unless you drive forward at a speed of around 10mph/16kph then the video stops. Is that all the J772's work or does some of it come from the Canbus (speed?). If you were to hook your video signal direct to the MMI (J794) would you get a signal? Would you have a continuous backup video? If you have a aftermarket camera there are RCA video to Fakra adapters, I replaced the OEM camera on my Cayenne which Porsche wanted $1500 for and got as good of a picture for $20. There should be lots of Audi backup cameras in wrecking yards though.
I have a friend that hooked up an aftermarket camera to his '09 A6 and got it to work. I'll send him an Email to see what he did. I know he needed his Vagcom to do some coding. Not sure if he acquired a J772 module. Are all cars wired for it already so it's plug & play, only coding needed??

[Smac770]

The J772 is for laying the guidance lines over the video feed from the camera. But just running the video feed from the camera to the J794, for example, using a union between the green and gray FAKRAs, there's no reason to assume you'll get the raw image presented if the J794 cannot interact with the J772. Someone would have to try it to find out what the J794 would actually do.

[DAVE2121]

An aftermarket camera, or a used Audi camera? Aftermarket cameras tend to have the composite video signal (yellow plug) output. There's not an input for such to the J794, that I know of. The signal from the Audi camera is on the FAKRA cable, and goes to the J772 control module. That then overlays the overlay and sends the completed image to the MMI J794, again over FAKRA. Do you have the J772 module installed? If the J794 cannot interact with the J772, it probably assumes there's no video feed and doesn't attempt to display it.

Run a full autoscan log and post that so we can see what the car looks like from a control modules perspective.

Hi thanks for replying, sorry for late reply I've been on crappy shifts at work and then on my "off" days earlier this week the site was down lol.
Here is a scan i did before the site went down:-


Chassis Type: 8T-AU48 (8R0)
Scan: 01 02 03 05 08 09 15 16 17 19 42 44 46 47 52 53 56 5F

VIN: WAUZZZ8T2EA055502 Mileage: 195910km-121732miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: OK 0000
5F-Information Electr. -- Status: Malfunction 0010
-------------------------------------------------------------------------------
Address 01: Engine (J623-CGLC) Labels:. 03L-906-018-CGL.clb
Part No SW: 03L 906 018 KL HW: 03L 906 018 JL
Component: R4 2.0l TDI H25 9978
Revision: 45H25--- CVN: DB37AD43
Coding: 0A254012232601080000
Shop #: WSC 59851 001 1048576
ASAM Dataset: EV_ECM20TDI01103L906018KL 003009
ROD: EV_ECM20TDI01103L906018KK.rod
VCID: 7EA5EE05507E68DA5DF-802A
VINID: 9D196AAAA2240954401451400844BFC259

No fault code found.
Readiness: 0 0 0 0 0

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217) Labels:| 0B5-927-156.clb
Part No SW: 8K9 927 156 S HW: 0B5 927 156 K
Component: 0B5 20 TDIRdW H02 0004
Revision: --H02--- CVN: 0000D9A8
Coding: 000001
Shop #: WSC 06325 000 00000
ASAM Dataset: EV_TCMDL501021 001015
ROD: EV_TCMDL501021.rod
VCID: 4DC779C9AD580342945-8018

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels:. 8K0-907-379-V2.clb
Part No SW: 8K0 907 379 CM HW: 8K0 907 379 CM
Component: ESP8 quattro H09 0020
Revision: -------- Serial number: --------------
Coding: 35154401
Shop #: WSC 06325 000 00000
VCID: 065586E5082E301A15F-8052

No fault code found.

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393) Labels:. 8K0-907-064-05.clb
Part No SW: 8K0 907 064 JE HW: 8K0 907 064 JE
Component: BCM2 2.0 H14 0650
Revision: 00002001
Coding: 01B04040000000000000
Shop #: WSC 06325 000 00000
VCID: 7CA1E40D46E27ACA73B-8028

Subsystem 1 - Part No SW: 8K0 959 754 H HW: 8K0 959 754 H
Component: FBSAUDIB8 IDG H71 0083
Serial number: 0514000020637017

Subsystem 2 - Part No SW: 8K0 905 852 E HW: 8K0 905 852 E
Component: J764 ELV MLB H40 0046
Serial number: 0214000014475006

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255) Labels:. 8Kx-820-043-3Z.clb
Part No SW: 8K2 820 043 AJ HW: 8K2 820 043 AJ
Component: KLIMA 3 ZONEN H04 0123
Revision: D1000000 Serial number: 01060220140013
Coding: 342602E080
Shop #: WSC 06325 000 00000
VCID: 71BFC53911A007A2D0D-8024

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 8K0-907-063.clb
Part No SW: 8K0 907 063 DH HW: 8K0 907 063 DH
Component: BCM1 1.0 H16 0103
Revision: 08016001 Serial number: 00000062488601
Coding: 260000108034AFE00181408300001D0D009DC3882709020100 0008004400030100000024000000
Shop #: WSC 06325 123 12345
VCID: 78A9F81D72DA56EA173-802C

Subsystem 1 - Part No SW: 8T2 955 119 D HW: 8J2 955 119 Labels: 1KX-955-119.CLB
Component: WWS 300114 H13 0080
Serial number: SWF14010305058
Coding: 00FD11

Subsystem 2 - Part No SW: 8U0 955 559 B HW: 8U0 955 559 B Labels: 8U0-955-559.CLB
Component: G397_RLFS H06 0002
Serial number: 22253407
Coding: 02005D

Subsystem 3 - Part No SW: 8K0 941 531 AS HW: 8K0 941 531 AS
Component: E1 - LDS H03 0031
Serial number: 00000000001302140809

Subsystem 4 - Part No SW: 4H0 907 658 HW: 4H0 907 658
Component: AQ_Hum_Sensor H03 0003
Serial number: A6B8C017000000000001

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234) Labels:| 8K0-959-655.clb
Part No SW: 8K0 959 655 N HW: 8K0 959 655 N
Component: AirbagVW-AU10 H47 0610
Serial number: 003KFDB4BVR6 Dataset Number: 8T0909602M 0005
Coding: 30533933363030303030554A305238543053
Shop #: WSC 06325 000 00000
ASAM Dataset: EV_AirbaECUVWAUDI010 003010
ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
VCID: 48C948DD423AE66AA73-801C

Crash sensor for side airbag: driver side:
Serial number: 6334MSME410E093FJ

Front Passenger's Side Airbag Crash Sensor:
Serial number: 6344MSME423B2E10B

Rear Side Airbag Crash Sensor (on driver's side):
Serial number: 6352QSME4B3D4C46Y

Passenger side rear thorax airbag crash sensor:
Serial number: 6362QSME4B3D214AQ

Crash sensor for front airbag: driver side:
Serial number: 63732SME6D3C024EA

Crash sensor for front airbag: front passenger side:
Serial number: 63832SME343C1A52/

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527) Labels:. 8K0-953-568.clb
Part No SW: 8K0 953 568 Q HW: 8K0 953 568 Q
Component: Lenks.Modul H03 0003
Revision: C0062331 Serial number: 90862NBG00050
Coding: 000036
Shop #: WSC 06325 000 00000
VCID: 48C948DD42BAE66AA73-801C

Component: E221 - MFL H03 0004

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels:. 8T0-920-xxx-17.clb
Part No SW: 8T0 920 984 K HW: 8T0 920 984 K
Component: KOMBIINSTR. H35 0564
Revision: 00000000 Serial number: Z9H2DNA2F
Coding: 23AF010002012600010000
Shop #: WSC 06325 123 12345
VCID: 47CB4BE14FA4E912AE9-8012

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:. 8T0-907-468.clb
Part No SW: 8R0 907 468 N HW: 8R0 907 468 C
Component: GW-BEM 4CAN-M H11 0060
Revision: 1Y080030 Serial number: 3041Y141310033
Coding: 80CF07FF00
Shop #: WSC 06325 000 00000
VCID: 4ACD72D55CB6147AB17-801E

Subsystem 1 - Part No SW: 8T0 915 181 HW: 8T0 915 181
Component: J367-BDMHella H03 8041
Serial number: 0666702403

Subsystem 2 - Part No SW: 8K0 959 663 B HW: 8K0 959 663 B
Component: J532_DCDCStab H05 0006
Serial number: 14043001480021200410

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386) Labels:. 8K0-959-793.clb
Part No SW: 8T0 959 793 P HW: 8T0 959 793 G
Component: TSG FA H09 0305
Revision: -------- Serial number: --------------
Coding: 011002225C01120102
Shop #: WSC 06325 000 00000
VCID: 56F596A5980E409A25F-8002

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500) Labels:| 8K0-909-144.clb
Part No SW: 8K0 909 144 G HW: 8K0 909 144 B
Component: RCEPS H40 0508
Revision: 00001000 Serial number: 0008293894 Dataset Number: 8T0909852J 0019
Coding: 100000010001
Shop #: WSC 06324 000 00000
ASAM Dataset: EV_RCEPSAU48X 008015
ROD: EV_RCEPSAU48X_008.rod
VCID: 3537312925C86B82CC5-8060

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393) Labels:. 8K0-907-064-46.clb
Part No SW: 8K0 907 064 JE HW: 8K0 907 064 JE
Component: BCM2 2.0 H14 0650
Revision: 00002001 Serial number: 0326361837
Coding: 011B068280B900808320003680000047
Shop #: WSC 06325 000 00000
VCID: 7CA1E40D46E27ACA73B-8028

Subsystem 1 - Part No: 8K0 951 177
Component: DWA-Sensor H02 0040

Subsystem 2 - Part No: 1K0 951 605 C
Component: LIN BACKUP HO H05 1501

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525) Labels:. 8T0-035-223-BOM.clb
Part No SW: 8T1 035 223 A HW: 8T1 035 223 A
Component: DSP Prem H05 0030
Revision: 00005001 Serial number: 94813025840804
VCID: 2D071949CD182342B45-8078

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387) Labels:. 8K0-959-792.clb
Part No SW: 8T0 959 792 P HW: 8T0 959 792 G
Component: TSG BF H09 0305
Revision: -------- Serial number: --------------
Coding: 011002225E01120102
Shop #: WSC 06325 000 00000
VCID: 55F791A985084B822C5-8000

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (----) Labels: 8K0-907-801-V2.clb
Part No SW: 8K0 907 801 N HW: 8K0 907 801 J
Component: EPB-4 H01 0005
Revision: -------- Serial number: 20000000403075
ASAM Dataset: EV_ParkiBrake 001028
ROD: EV_ParkiBrake_AU48.rod
VCID: 3A2D22150CD684FA217-806E

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R) Labels:. 4F0-035-0xx-56.clb
Part No SW: 4G0 035 061 S HW: 4G0 035 061
Component: Radio U DAB H60 0154
Revision: AB001007 Serial number: 109B10E7865448
Coding: 010103010000000001
Shop #: WSC 06325 000 00000
VCID: 2D071949CD182342B45-8078

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794) Labels:. 4E0-035-6xx-5F.clb
Part No SW: 8R2 035 666 L HW: 8R2 035 666 C
Component: H-BN-EU H47 1036
Revision: -------- Serial number: 206BP0E7552042
Coding: 13010102000681ED05808B5E00000403E40100020000000000
Shop #: WSC 06325 123 12345
VCID: 42DD5AF56486CC3A797-8016

Subsystem 1 - Part No: 8R0 060 884 KL
Component: EUR 2023 3600

Subsystem 2 - Part No SW: 8R0 919 604 A HW: 8R0 919 604 A
Component: DU7 High H42 0104
Serial number: A130BN0E2941911

Subsystem 3 - Part No SW: 8T0 919 611 K HW: 8T0 919 611 B
Component: E0380 Bedient H02 0030
Serial number: 00000001757929

Subsystem 4 - Part No: 8R0 060 961 F
Component: CD-Database 5571

1 Fault Found:
03623 - Invalid Security/Release Code
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 6
Fault Frequency: 1
Reset counter: 80
Mileage: 195890 km
Time Indication: 0
Date: 2024.02.24
Time: 21:19:09

Freeze Frame:
Hex Value: 0x0004
Hex Value: 0x0009
Count: 7


End----(Elapsed Time: 01:35, VBatt start/end: 11.8V/11.8V. VIgn 11.8V)-----

At the moment when i select reverse i get the PDC image (birds eye view) of the car with the radar sensors that light up red and audio tone when object to close. The camera i have is an after market one, the sort with a power cable and a yellow RCA cable, Its not essential to have the guidance lines that move on the camera view but i would like the PDC image of the car (birds eye view) with radar sensors that light up red when object close and audio tone in the corner of the screen over laying the camera image, i saw a video where a guy used the same camera and wired the yellow RCA image cable (with end cut off) in to the 5th row of the "blue block" on the back of the Quad lock, then he changed a setting in VCDS and the camera appeared.

any help is great cheers Dave

[Smac770]

So MY14 A5, with MMI 3G Plus (Plus = Connected High and replaced MMI 3G High, ie MMI navigation plus, at the facelift).

It appears the backup camera is run to the quad block for MMI 3G, unlike on my MMI 2G. The TV tuner still comes in on a FAKRA, but not the backup camera. So he's connecting it to the same pins 11 and 5 as the factory module would use. This is on the blue 12-pin plug. The quad-block is just a frame for the 8-pin brown, 8-pin black, 12-pin blue, and 12-pin green plugs installed into it. The RCA center pin would go to 11, the RCA ring "pin" would go to 5, it would appear.

But as to what kind of video signal is expected on those pins, and if that camera produces what the J794 is expecting, no idea. The rest of the video inputs on the J794 seems to be FBAS (from the TV tuner and the AMI port). The video output to the J685 screen is LVDS. So the wiring is simple enough to isolate, but as to what software changes are needed, no idea. You'd want to recheck that video.

That battery voltage is not good.