VCDS diag [05] - Access/Start Authorization no communication

[A6_C6]

Hi all

I have a 2005 Audi A6 C6 saloon 3.0 TDI quattro .
i ran a scan and noticed it hang on the VCDS diag [05] - Access/Start Authorisation
the whole run return no errors but if I look at the 05 channel there is nothing , it just says controller doesn't support DTc or there is a communication failure ?
if I try to run a scan on the 05 channel itself VCDS just seems to keep trying it , I waited for 10 mins .

I checked in the options and these are set to default for USB and that the 'force K 'was unchecked .

I did try it with this checked and this time after 5 mins came back with a pop up of communication failure .

the car works ok and starts first time ,

anybody got any ideas ? I guess what ever chip on the 05 channel that communicates with the ODB bus has failed but the actual part is still functioning . many thanks

 

[Uwe]

I don't think your theory is correct. The Kessy module at address 05 communicates with the diagnostic Gateway in the car using the same CAN network that it uses to communicate with everything else, and if it were unable to communicate with the rest of the stuff in the car, the car wouldn't start and there would be plenty of faults in other modules about it.

I'm not sure what's going on there exactly. My daughter has an 05 A6 that's been in the family since new. It's got a 3.2 gasoline engine rather than a 3.0 TDI, but the Kessy should be reasonably the same.

Do me a favor and post up whatever scan data you've got from it. It's possible there are clues in other modules.

-Uwe-

 

[A6_C6]

HI Uwe

here is the last scan I see no issues except the statement on channel 05 with the

No Faults Found
or DTCs not supported by controller
or a communication error occurred

if i try the specific 05 address it just times out

i would say although the canbus is used buy the controller/kessy the diagnostic part of the bus ( which VCDS) uses, use different ports/connections , this is what happens in pc's/tablets/phones/laptops , but was interested to see if there is any specific problem .

as i say before the car runs fine and is currently commuting 100 miles a day
many thanks
Martin

Monday,02,December,2019,16:31:02:33020
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 19.6.2.0 (x64)
Data version: 20190930 DS308.0
www.Ross-Tech.com


VIN: WAUZZZ4F85N069915   License Plate: 
Mileage: 296360km-184149mi   Repair Order: 


Chassis Type: 4F (4F0)
Scan: 01 02 03 05 07 08 09 0E 15 16 17 19 37 42 46 47 4F 52 53 55
          56 61 62 72 77

VIN: WAUZZZ4F85N069915   Mileage: 296360km-184149miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
07-Control Head -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
0E-Media Player 1 -- 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
25-Immobilizer -- Status: OK 0000
37-Navigation -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
4F-Centr. Electr. II -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
56-Radio -- Status: OK 0000
61-Battery Regul. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 059-907-401-ASB.clb
   Part No SW: 4F0 910 401 L    HW: 4F0 907 401 A
   Component: 3.0L V6TDI  G000AG  0040  
   Revision: --H01---    Serial number:               
   Coding: 0311772
   Shop #: WSC 02629 005 00000
   VCID: 254BDA67EC61FA67F4-8070

No fault code found.
Readiness: 0 0 1 1 1 

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 09L-927-760.lbl
   Part No SW: 4F0 910 156 H    HW: 09L 927 156 
   Component: AG6 09L 3.0lTDI RdW 0080  
   Revision: --H01---    Serial number:        0067909
   Coding: 0000001
   Shop #: WSC 02327 785 00200
   VCID: 2855D3539B73E70FCF-807C

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 4F0-910-517.clb
   Part No SW: 4F0 910 517 E    HW: 4F0 614 517 A
   Component: ESP8 quattro    H03 0010  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0020876
   Shop #: WSC 02327 785 00200
   VCID: 2649DD6B9167F17FFD-8072

No fault code found.

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth.        Labels: None
   VCID: 55ABAAA7BC81AAE7A4-FFFE

No Faults Found
  or DTCs not supported by controller
  or a communication error occurred

-------------------------------------------------------------------------------
Address 07: Control Head        Labels: 4F0-910-7xx-07-H.clb
   Part No SW: 4F1 910 732 D    HW: 4E0 035 729 
   Component: Interfacebox    H43 5570  
   Revision: 00000000    Serial number: 350KR047547621
   Coding: 0000002
   Shop #: WSC 02335 785 00200
   VCID: 254BDA67EC61FA67F4-8070

   Subsystem 1 - Part No: 4F0 910 609 
   Component: Bedienteil MMIC6H03 0870

   Subsystem 2 - Serial number: 00000000074341

   Subsystem 3 - Serial number: 0102.11.040000000100010284ÿ

   Subsystem 4 - Serial number: 010284ÿ

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 4F0-910-043.clb
   Part No SW: 4F0 910 043     HW: 4F2 820 043 
   Component: KLIMABETAETIGUNGH04 0110  
   Revision: 00000023    Serial number: 00000000076027
   Coding: 0001046
   Shop #: WSC 02327 785 00200
   VCID: 5BBFBC9F9AA57C9792-800E

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 4F0-910-279.lbl
   Part No SW: 4F0 910 279     HW: 4F0 907 279 
   Component: ILM Fahrer      H14 0080  
   Revision: 00000000    Serial number: 4F0907279     
   Coding: 0002121
   Shop #: WSC 02335 785 00200
   VCID: 66C99D6B51E7317F3D-8032

   Subsystem 1 - Part No: 4F2 910 113   Labels: 1KX-955-119.CLB
   Component: Wischer AudiC6  H04 0150  
   Coding: 00062736
   Shop #: WSC 02335  

   Subsystem 2 - Part No: 4E0 910 557   Labels: 8K0-955-559.CLB
   Component: REGENLICHTSENSORH10 0050  
   Coding: 00141886
   Shop #: WSC 02335  

No fault code found.

-------------------------------------------------------------------------------
Address 0E: Media Player 1        Labels: 4E0-910-111.lbl
   Part No SW: 4E0 910 111 F    HW: 4E0 035 111 A
   Component: CD-Changer      H44 0470  
   Revision: 00000000    Serial number: AUZ5ZBD7109658
   Shop #: WSC 00000 000 00000
   VCID: 1C3DFF83DF2B3BAF5B-8048

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 4F0-910-655-8R.clb
   Part No SW: 4F0 910 655 D    HW: 4F0 959 655 B
   Component: 38 AIRBAG AUDI8RH29 0250  
   Revision: 05H29000    Serial number: 0037LD04H7L7  
   Coding: 0013112
   Shop #: WSC 00487 210 04579
   VCID: 2855D3539B73E70FCF-807C

   Subsystem 1 - Serial number: 6332CSME07173C44%

   Subsystem 2 - Serial number: 6342CSME07161243T

   Subsystem 3 - Serial number: 6351HSME04504A1E5

   Subsystem 4 - Serial number: 6361HSME04575023.

   Subsystem 5 - Serial number: 6371VSME04290C6DT

   Subsystem 6 - Serial number: 6381VSME043F4656R

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 4F0-910-549.lbl
   Part No SW: 4F0 910 549     HW: 4F0 953 549 A
   Component: Lenksäulenmodul H07 0230  
   Revision: 00H07000    Serial number: 90025042960065
   Coding: 0102141
   Shop #: WSC 02323 785 00200
   VCID: 66C99D6B51E7317F3D-8032

   Subsystem 1 - Part No: XXXXXXXXXXX 
   Component: Lenkradmodul    H05 0080

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 4F0-910-xxx-17.lbl
   Part No SW: 4F0 910 900 A    HW: 4F0 920 950 L
   Component: KOMBIINSTR. M73 H09 0630  
   Revision: 00300000    Serial number: 4M1304PA4     
   Coding: 0001413
   Shop #: WSC 12345 067 57207
   VCID: 1E39F58BC93729BFB5-804A

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 4F0-910-468.clb
   Part No SW: 4F0 910 468 A    HW: 4F0 907 468 B
   Component: Gateway         H09 0030  
   Revision: 09          Serial number: 0800804A190391
   Coding: 6CFE73C41B3104
   Shop #: WSC 02325 785 00200
   VCID: 2757D06F966DE877C6-8072

No fault code found.

-------------------------------------------------------------------------------
Address 37: Navigation        Labels: 4E0-910-88x-37.lbl
   Part No SW: 4E0 910 888 P    HW: 4E0 919 887 C
   Component: MNS ECE         H52 1060  
   Revision: 00000000    Serial number: 353FP057609543
   Shop #: WSC 00000 000 00000
   VCID: 3B7F1C1F7AE55C97B2-806E

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels: 4F0-910-793-42.lbl
   Part No SW: 4F0 910 793 C    HW: 4F0 959 793 C
   Component: TSG FA          H10 0020  
   Revision: 00000000    Serial number: Y�0
   Coding: 0000538
   Shop #: WSC 02327 785 00200
   VCID: 2A51295B857FD51FD9-807E

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 4F0-910-289.lbl
   Part No SW: 4F0 910 289 E    HW: 4F0 907 289 E
   Component: Komfortgeraet   H14 0090  
   Revision: 00900014    Serial number: 01001438440000
   Coding: 0131571
   Shop #: WSC 02335 785 00200
   VCID: 2C5D2F438F8BCB2F2B-8078

   Subsystem 1 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HORN H02 1301

   Subsystem 2 - Part No: 4F0 910 177 
   Component: Innenraumueberw.H01 0020

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System        Labels: 4F0-910-223-AS.lbl
   Part No SW: 4F0 910 223 G    HW: 4F0 035 223 
   Component: Amp.-ASK        H09 0350  
   Revision: 16S00001    Serial number: 02809040037365
   Coding: 0000003
   Shop #: WSC 02335 785 00200
   VCID: 2241C17BFD4F0D5F91-8076

No fault code found.

-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II        Labels: 4F0-910-280.lbl
   Part No SW: 4F0 910 280     HW: 4F0 907 280 A
   Component: ILM Beifahrer   H09 0050  
   Revision:             Serial number: 00000000044012
   Coding: 0001103
   Shop #: WSC 02323 785 00200
   VCID: 5EB9B58B89B769BFF5-800A

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels: 4F0-910-793-52.lbl
   Part No SW: 4F0 910 792 C    HW: 4F0 959 792 C
   Component: TSG BF          H10 0020  
   Revision: 00000000    Serial number: b˜)
   Coding: 0000538
   Shop #: WSC 02327 785 00200
   VCID: 2953D6578079DE07D0-807C

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake        Labels: 4F0-910-801.clb
   Part No SW: 4F0 910 801     HW: 4F0 907 801 
   Component: EPB  C63C0030   H03 0030  
   Revision: C63C0030    
   Coding: 0000321
   Shop #: WSC 02334 785 00200
   VCID: 5DBBB28784B172A7EC-8008

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range        Labels: 8P0-907-357.lbl
   Part No: 8P0 907 357 J
   Component: Dynamische LWR  H01 0020  
   Revision: 00000001    Serial number:               
   Coding: 0000003
   Shop #: WSC 06314 000 00000
   VCID: 41836EF718093647E8-8014

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 4E0-910-541.lbl
   Part No SW: 4E0 910 541 T    HW: 4F0 035 541 
   Component: TUNER EU/US/RDW H41 0630  
   Revision: 00000000    Serial number: 352J.047573937
   Coding: 0000001
   Shop #: WSC 02327 785 00200
   VCID: 31633E37A8A9A6C718-8064

No fault code found.

-------------------------------------------------------------------------------
Address 61: Battery Regul.        Labels: 4F0-910-181.lbl
   Part No SW: 4F0 910 181 E    HW: 4F0 915 181 A
   Component: ENERGIEMANAGER  H11 0490  
   Revision: 00000000    Serial number: 00000000079366
   Shop #: WSC 00487 210 04579
   VCID: 234FC47FE25504579A-8076

   Subsystem 1 - Part No: 4F0 915 105 D
   Component: von TU3  0827200517       
   Coding: 344630393135313035442054553330383237323030353137
   Shop #: WSC 00000 384 00290

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left        Labels: 4F0-910-795.lbl
   Part No SW: 4F0 910 795 A    HW: 4F0 959 795 A
   Component: TSG HL          H09 0010  
   Coding: 0000002
   Shop #: WSC 02327 785 00200
   VCID: 2A51295B857FD51FD9-807E

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right        Labels: 4F0-910-795.lbl
   Part No SW: 4F0 910 795 A    HW: 4F0 959 794 A
   Component: TSG HR          H09 0010  
   Coding: 0000002
   Shop #: WSC 02327 785 00200
   VCID: 2A51295B857FD51FD9-807E

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 4E0-910-336.lbl
   Part No SW: 4E0 910 336 M    HW: 4E0 862 335 
   Component: Handyvorb2      H10 1130  
   Revision: 00000000    Serial number: 00000007529645
   Coding: 0010900
   Shop #: WSC 00000 000 00000
   VCID: 2C5D2F438F8BCB2F2B-8078

No fault code found.

End-------------------------(Elapsed Time: 07:27)--------------------------

 

[Uwe]

OK, I don't see an obvious reason or clues here.

Unfortunately my daughter's 2005 A6 is 200 miles away right, and all she has is a HEX-NET, while you're using an older HEX+CAN. Assuming she comes home this weekend, I'll try to check her car with a HEX+CAN.

-Uwe-

 

[Jack@European_Parts]

OP

Please go to 0x01-10-091 what is channel value?

 

[A6_C6]

Hi Jack

sorry I am a basic user , I am assuming check on of the subfields under the controler 05 ?.
problem is VCDS won't actually open that controller.

on another note I was thinking of taking the battery off so the car has no power for 12 hours just to see if this resets anything that might be stuck in the kessy , as as far as I am aware the car has not had all power removed for 12 years now :O .
would there be any issues with this like security codes for radios or anything , I only ask as I have never thought about doing this ?

 

[Uwe]

No, he would like you to check:
[01-Engine]
[Adaptation-10]
Channel 091
... and report the stored value there.

-Uwe-

 

[Jack@European_Parts]

Hi Jack

sorry I am a basic user , I am assuming check on of the subfields under the controler 05 ?.
problem is VCDS won't actually open that controller.

on another note I was thinking of taking the battery off so the car has no power for 12 hours just to see if this resets anything that might be stuck in the kessy , as as far as I am aware the car has not had all power removed for 12 years now :O .
would there be any issues with this like security codes for radios or anything , I only ask as I have never thought about doing this ?

https://forums.ross-tech.com/showthread.php?3147-What-is-Jack-talking-about-0x01-08-000

This thread maybe helpful..........

 

[A6_C6]

HI Guys

went to 01 - Engine

but there was no [Adaptation-10] only [Long Adaptation 0A] hope that was correct

went in there and then to channel 91 [Immobilizer Status] stored value = 4

(I can't see how to add images here )

is that what you required ?

thanks

 

[Jack@European_Parts]

HI Guys

went to 01 - Engine

but there was no [Adaptation-10] only [Long Adaptation 0A] hope that was correct

went in there and then to channel 91 [Immobilizer Status] stored value = 4

(I can't see how to add images here )

is that what you required ?

thanks

Yes

Four means the ECU is set as married and the immobilizer is functional in eeprom, however, that doesn't mean that someone may have still tampered or extended the time clock in the flash to continue to operate the engine regardless with FOD.

Did you try an install on another PC or a re installation, is K line talking first forced or CAN and is K line active too?

I'm thinking that VCDS may not be configured properly, the interface/USB or computer you are using maybe having an issue that possibly Uwe should check into.

 

[A6_C6]

I can try another PC , the force K option is unchecked ( not ticked) .

the VCDS seems to communicate with all other parts ok and without issue

many thanks for your time much appreciated

 

[Jack@European_Parts]

Did you try "force K line" too just to see?

 

[A6_C6]

I did try with the k line ticked and it came back with a communication time out popup I seem to remember

 

[Uwe]

I can't imagine the Kessy on this car being K-line.

-Uwe-

 

[Jack@European_Parts]

I can't imagine the Kessy on this car being K-line.

-Uwe-

Affirmative Uwe no K line in WD on this one.

I think the board would support it although not wired.

Either someone has already set up a defeat of ESCL or you should expect a problem real soon like all the others for a lock or board rebuild and is pretty popular?

Address 05: Acc/Start Auth. Labels:. 4F0-910-852.clb
Part No SW: 4F0 910 852 B HW: OOOOOO
Component: FBSAUDIC6 ELV HO 0130
Revision: 00HO000 Serial number: OOOOOOO
Coding: 1068816

 

[A6_C6]

HI All

just a update on all of this to give some of my findings .

over a year ago the car seemed to stop seeing the key ,
insert key , MMI worked and a few other systems , doors unlocked with fob and also windows would work via the fob .
but turn the key car was dead .....
as I can't communicate with kessy , i could see no failure codes .
after many key inserts and turns it would pop into life .

garage recommended a new barrel but at £300 I got a second hand one for £30 and we fitted it , boom ...car worked flawlessly for about 10 months.
it then started to do the exact same thing .
I thought i just had another duff key barrel (which sums my luck up really ) so bought a new one in a sale for £220 and got it fitted , again started working flawlessly this time for only 5 months and the same thing is happening again .

after a lot of searching and as many have said it seems to be a failure on the Kessy of a few very cheap parts
this is shown in this video https://www.youtube.com/watch?reload=9&v=bsnY6W1mjT8

&
https://www.youtube.com/watch?v=VzmocaX9S0E

although most failures seem to be of a micro switches but the steering lock still works after clearing codes in the 05 Access /start auth and what i didn't realise is my steering lock has stopped working ( my guess is there is a relay that cycles the lock motor when you put the key in the barrel and again when you take the key out ) and my relay has failed while the lock was open .
now I think it is this that has stopped the kessy talking to the VCDS as it is waiting for the steering lock to cycle to continue and is confused that it is already open as the standard default condition is steering lock is shut and so sits there waiting for the lock to cycle which never comes .
so basically waits for the VCDS time out and VCDS then just continues and ignores the 05 Access /start auth .

 

[A6_C6]

in addition , I am going to remove my kessy and replace the the micro swithes and relays to see if it fixes it , if it doesn't I will need to scrap the car , it has only done 200000 miles

 

[A6_C6]

HI All just a post to complete thing and hopefully help someone else out

so got my Kessy out and opened up to my garage 45 mins to get it out and me 10 mins to open it up
here is a great video to help peeps from a yank mechanic - CLAY - https://www.youtube.com/watch?v=VzmocaX9S0E

bought a new relay for £4 and 3 off micro switches for £12 took it to work and replaced them took back to garage who refitted it all and guess what .
all seems to be working steering lock now works and VCDS now talks to it . so a grand total of £124
well worth a try as you have nothing to loose.
Audi wanted £2000 +vat FFS



It definitely seemed that the steering lock being open seems to confuse the kessy and you get no response from it .
you can test this out by taking the fuse out to the Kessy ( drives side fuse box ) for 5 mins and then the Kessy will respond for a couple of scans then stop responding .

hope this helps someone out

is there any tests or adaption test you can run from the VCDS just to try things out ?