Audi A6 C5 Allroad ABS not accepting Automatic to Manual soft coding

   #1  

LeeMee

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Good afternoon,

I'm having some difficulty coding my ABS to accept the coding from an automatic to manual transmission swap.

I'm able to log in using my cars PR code but then when i change the soft coding there is no change and just shows the existing coding.

The old TCM unit has been disconnected so it does show a TCM missing fault could this be the reason why it wont accept the coding change ?

Log in for the car is 07495 and the existing ABS coding is 06387 and i need to change it to 06385.
I got a feeling i need to swap the abs ECU for a manual one at this rate.

Any help would be greatly appreciated.
 
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Uwe

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   #3  

LeeMee

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Code:
Sunday,03,January,2021,12:06:16:35125
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.12.0.0 (x64)  HEX-V2 CB: 0.4529.4
Data version: 20201124 DS322.0
www.Ross-Tech.com


VIN: WAUZZZ4B74N020717   License Plate:


Chassis Type: 4B (4B - Audi A6/S6/RS6/allroad C5 (1998 > 2005))
Scan: 01 02 03 06 08 15 16 17 18 22 34 35 36 37 45 55 56 57 65 67
          75 76 77

VIN: WAUZZZ4B74N020717  
-------------------------------------------------------------------------------
Address 01: Engine        Labels: None
   Part No SW: 4D0 907 560 BF    HW: 8E0 907 560
   Component: 4.2L V8/5V      G   0030 
   Coding: 0011755
   Shop #: WSC 02325 785 00200
   VCID: 6B8239AA1F9D6303B61-5160

1 Fault Found:
18034 - Powertrain Data Bus
            P1626 - 008 - Missing Message from TCU
Readiness: 0110 1101

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8D0-907-389.lbl
   Part No: 4Z7 907 389 A
   Component: ABS/ESP allrad      D56 
   Coding: 06387
   Shop #: WSC 02325 
   VCID: 4ACC9C2E75A79A0BED7-5160

1 Fault Found:
18034 - Powertrain Data Bus
            P1626 - 35-00 - Missing Message from TCU

-------------------------------------------------------------------------------
Address 06: Seat Mem. Pass        Labels: None
   Part No: 4B0 959 760 C
   Component: Sitzmemory R1 BF    0205 
   Coding: 00003
   Shop #: WSC 00000 
   VCID: 2D06F7B2E439AD33E85-4B00

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 4B0-820-043-MY2.lbl
   Part No: 4B0 820 043 AR
   Component: A6-Klimavollautomat 0208 
   Coding: 00101
   Shop #: WSC 02325 
   VCID: 6A8C3CAE15577A0BCD7-2586

2 Faults Found:
01592 - Air Quality Sensor (G238)
            57-00 - Electric Circuit Failure
01206 - Signal for Duration of Ignition Off Time
            27-00 - Implausible Signal

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 4B0-959-655-AI84.lbl
   Part No: 4Z7 959 655 H
   Component: Airbag 8.4EP        3000 
   Coding: 0000106
   Shop #: WSC 02325 785 00200
   VCID: 54F08256A2E3DCFB87B-5184

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 4B0-920-xxx-17.lbl
   Part No: 4B0 920 981 L
   Component: KOMBI+WEGFAHRS. VDO D12 
   Coding: 04483
   Shop #: WSC 00001 
   VCID: 2F3AEDBAEE05DF23DA9-5160
   WAUZZZ4B74N020717     AUZ7Z0C2424294

1 Fault Found:
01315 - Transmission Control Module
            49-00 - No Communications

-------------------------------------------------------------------------------
Address 34: Level Control        Labels: 4Z7-907-553.lbl
   Part No: 4Z7 907 553 F
   Component:  - 2C1A1          D060   
   Coding: 25500
   Shop #: WSC 00060 
   VCID: 48C8A6266BAB681BFB3-513C

1 Fault Found:
01316 - ABS Control Module
            79-00 - Please Check Fault Codes

-------------------------------------------------------------------------------
Address 35: Centr. Locks        Labels:. 4B0-962-258.clb
   Part No: 4B0 962 258 N
   Component: Zentralverrieg.,DWA D38 
   Coding: 06859
   Shop #: WSC 02325 
   VCID: 3430E2D60713FCFBA7B-4F0C

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr        Labels: None
   Part No: 4B0 959 760 B
   Component: Sitzmemory R1 F     0204 
   Coding: 00001
   Shop #: WSC 00000 
   VCID: 2C00FAB6DF23A43BFFB-4B1E

No fault code found.

-------------------------------------------------------------------------------
Address 45: Inter. Monitor        Labels: 4B0-951-178.lbl
   Part No: 4B0 951 178 A
   Component: Innenraumueberw.    D04 
   Coding: 00102
   Shop #: WSC 02325 
   VCID: 2614089EC1CF9E6B29F-50F4

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range        Labels: 4Z7-907-357.lbl
   Part No: 4Z7 907 357
   Component: dynamische LWR       D09 
   Coding: 00030
   Shop #: WSC 02325 
   VCID: 0450721617338C7B57B-4B3C

1 Fault Found:
01535 - Control Circuit for Right Headlight Range Adjusting Motor (V49)
            30-00 - Open or Short to Plus

-------------------------------------------------------------------------------
Address 56: Radio        Labels: None
   Part No: 4B0 035 195 R
   Component: symphony II NP2    0152  
   Coding: 00201
   Shop #: WSC 00976 
   VCID: 2F3AEDBAEE35DF23DA9-4E84

No fault code found.

-------------------------------------------------------------------------------
Address 76: Park Assist        Labels: 8E0-919-283-8E2.lbl
   Part No: 8E0 919 283
   Component: Parkingsyst. A6 RDW D09 
   Coding: 11186
   Shop #: WSC 02325 
   VCID: 6D8637B224B96D33A85-5160

No fault code found.

End----------(Elapsed Time: 05:12, VBatt start/end: 12.4V/12.3V)-----------
 
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   #4  

LeeMee

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The Ecu has now been flashed with the coding for a manual gearbox but it still shows the TCM fault.
Regards Liam
 
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Uwe

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That exact ABS module does exist in manual transmission cars (e.g. here, so I don't think it needs to be changed.

The '8' in the 2nd-to-last digit of your existing ABS coding has me scratching my head. The 8 is undocumented, but some web-searching for scans has me thinking it might be unique to V8 cars with automatic transmissions (and I think all the V8s came from the factory with automatics?)...

What happens if you log in with 07495 and code it with 06395?

-Uwe-
 
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LeeMee

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We have been head scratching a little as even the engine ecu is still looking for the TCM even though we have changed the coding for the manual gearbox. My plan is to put an S4 BBK tune on it as i'm running the S4 camshafts but there is some differences between the BAS ecu and the BBK. The BAS ecu uses a vacuum pump and pressure sensor whereas the BBK doesn't.
Bear with me i will just try that coding thanks
 
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LeeMee

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Ok so it accepted the 06395 code but the following faults remain

Address 03: ABS Brakes Labels: 8D0-907-389.lbl
Control Module Part Number: 4Z7 907 389 A
Component and/or Version: ABS/ESP allrad D56
Software Coding: 06395
Work Shop Code: WSC 02325
VCID: 4ACC9C2E75B79A0BED7-5160
2 Faults Found:

01044 - Control Module Incorrectly Coded
35-00 - -
18034 - Powertrain Data Bus
P1626 - 35-00 - Missing Message from TCU
 
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NEtech

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Try if this is accepted:
log in with 07485 and code it with 06385?
 
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Uwe

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Also check your Instrument Cluster. What do you have in Adaptation channel 060 there?

+0001 - Engine
+0002 - Autom. Transmission
+1024 - Instrument cluster
+2048 - Self leveling suspension (Allroad only)

-Uwe-
 
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LeeMee

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The value was 1027 but i changed it to 1025 to ignore the TCM i assume this is correct ?
 
   #11  

Uwe

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Yes, but I'd think it should have thhe +2048 for Self-Leveling Suspension too. Since that's not a source of any issues at the moment, I'd leave it at 1025 for now.

-Uwe-
 
   #12  

LeeMee

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So 3073 would be the best for adaptive suspension and to clear the TCM from the cluster.

What i'm thinking of doing with the ECU is to flash it with a manual BBK S4 tune and softcode it so it shows it as an audi A4 11711 and code the ABS as 06395 do you think that this may solve my issue to get it working with no faults ?

Thanks for the help so far
 
   #13  

LeeMee

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The car is now working as required.
Had a contact who was able to edit the main ecu flash as a manual even though there was never a 4.2 manual file.
Flashed new bin to ecu, abs and ecu softcoded for the manual box.
Drives perfectly so glad I was able to complete the conversion correctly and is possibly the only manual converted 4.2 v8 C5 Allroad in the uk currently.
 
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