Resolving a serious electrical fault on an Audi A6

You should be able to check these codes on the Ross-Tech wiki no? Just googled the last code, which took me straight to the Wiki here: http://wiki.ross-tech.com/wiki/index.php/02432

Yes, but the explanations given are related to that unique fault code whereas I'm pretty sure what I have is one problem causing numerous fault codes. From what I can see there isn't any option to input multiple fault codes and find any link between them, and tbh I wouldn't expect there to be as that's far too complex.
 
No, it probably wouldn't work like that on there. But searching all the codes may lead to a fault that may show to cause multiple other faults? There are some very good forums out there too which can often go into greater detail when diagnosing what fault may be the actual cause. So when you search for the specific codes, it might be worth reading a few forum posts to see if anyones problems seem similar to yours.
 
You want to know if the common module is responsible for the same functions. In BMW land for example, a faulty module on the LINBus could give you wing mirror, indicator, window, door locks, dipping rear view mirror issues, etc, etc, so, are all the faults common to one module?
 
You want to know if the common module is responsible for the same functions. In BMW land for example, a faulty module on the LINBus could give you wing mirror, indicator, window, door locks, dipping rear view mirror issues, etc, etc, so, are all the faults common to one module?

I’ve cleared all the codes apart from the parking brake one which I can’t clear, and I’m going to rescan later to see which ones reappear, then I’ll see if they’re common to one particular module. Thanks!
 
with that many loss of communications I'd be looking at the can gateway. Not sure where they are on your car but, for example, some mk5 golfs have them on the top of the CECM and they can rattle a bit loose and cause havoc. To me its almost implausible that all of those modules are having problems and the one thing that ties them all together is the can gateway.

Do a full autoscan and post up the results, can at least see what modules the car thinks it has.
 
with that many loss of communications I'd be looking at the can gateway. Not sure where they are on your car but, for example, some mk5 golfs have them on the top of the CECM and they can rattle a bit loose and cause havoc. To me its almost implausible that all of those modules are having problems and the one thing that ties them all together is the can gateway.

Do a full autoscan and post up the results, can at least see what modules the car thinks it has.

Thanks - I seem to remember the CAN gateway is behind the glovebox so I'll take a look at that tomorrow. Here's the results of the full auto scan:

Vehicle type: 4F (4F0)

Scan: 01 02 03 05 07 07 08 09 09 0E 15 16 17 17 19 36 42 46 46 47 4F 52 53 55

56 57 61 62 72 76


Vehicle identification no.: Mileage: 109970km


00 Steering Angle Sensor -- Status: OK 0000

01-Motor electronics -- Status: Error 0010

02-Gearbox -- Status: Sporadic communication error 1000

03-Brake Electronics -- Status: Error 0010

05-Access/Start. Status: Error 0010

07-No. /Operator -- Status: OK 0000

08-Air conditioning/heating element. Status: OK 0000

09-Central Electrics -- Status: OK 0000

0E-Media Player 1 -- Status: OK 0000

15-Airbag -- Status: OK 0000

16 Steering Gear Electronics -- Status: OK 0000

17-Switch panel insert -- Status: OK 0000

19 Diagnostics Interface -- Status: Error 0010

25 immobilizer -- Status: Error 0010

36 seat adjustment Drive. Status: OK 0000

42-Door Electronic Driver -- Status: OK 0000

46-Comfort-system -- Status: Error 0010

47-Soundsystem -- Status: OK 0000

4F Central Electrics II -- Status: OK 0000

52-door electric front-end. Status: OK 0000

53 Parking Brake -- Status: Error 0010

55-Luminous Range Reg. -- Status: OK 0000

56 Radio -- Status: OK 0000

57-TV Tuner -- Status: OK 0000

61-Battery control -- Status: OK 0000

62-Door electr. hi. left -- Status: OK 0000

72-Türlektr. hi. re. -- Status: OK 0000

76 Parking aid -- Status: Error 0010


-------------------------------------------------------------------------------

Address 01: Motor electronics label file: DRV\06C-909-559-ASN. lbl

Part number SW: 4F0 910 559 E HW: 4F0 907 559

Component: 3.0L V6/5V G 0030

Revision: -------- Serial number:

Coding: 0011582

Operating no..: WSC 02325 785 00200

VCID: 2C563C2C2C8F0B362606-8078

2 error codes found:

18034 - Data bus drive

P1626 - 008 - Missing message from transmission control unit - Sporadic

18061 - Please read out the error memory of the ABS control unit

P1653 - 008 - - - Sporadic

Readiness: 0000 0000


-------------------------------------------------------------------------------

Address 02: Gearbox label file: DRV\01J-927-156. lbl

Item number SW: 4F1 910 155 HW: 01J 927 156 HT

Component: V30 01J 3.0l 5V RdW 0020

Revision: 00000006 Serial number: 00000000805482

Coding: 0000001

Operating no..: WSC 02325 785 00200

VCID: 60CE981CB343A246EA-8034


No error code (s) found.


-------------------------------------------------------------------------------

Address 03: Brake electronics label file: DRV\4F0-910-517. lbl

Item number SW: 4F0 910 517 D HW: 4F0 614 517

Component: ESP8 front H03 0010

Revision: 00000000 Serial number: 0000000000000000000000

Coding: 0021338

Operating no..: WSC 02325 785 00200

VCID: 2540C908ECE1076ED9-8070


2 error codes found:

00473 - Control unit for electric parking brake/hand brake (J540)

008 - implausible signal

Ambient conditions:

Error status: 01101000

Error priority: 3

Error frequency: 1

Distributor counter: 76

Mileage: 109912 km

Time specification: 0

Date: 2018.02.21

Time: 14:53:01


Ambient conditions:

Hex value: 0x0280

Hex value: 0x4082

Hex value: 0x0000

Hex value: 0x00A8

Hex value: 0x00FF


01315 - Gearbox control unit

004 - no signal/communication - sporadic

Ambient conditions:

Error status: 00100100

Error priority: 2

Error frequency: 1

Distributor counter: 115

Mileage: 109921 km

Time specification: 0

Date: 2018.02.21

Time: 16:48:40


Ambient conditions:

Hex value: 0x4840

Hex value: 0x4006

Hex value: 0x12D0

Hex value: 0x00A9

Hex value: 0x00FF

-------------------------------------------------------------------------------

Address 05: Access/Start. Label file:. 4F0-910-852. clb

Part number SW: 4F0 910 852 B HW: 4F0 905 852 E

Component: FBSAUDIC6 ELV H08 0210

Revision: 00H08000 Serial number: 10604102175077

Coding: 0000135

Operating no..: WSC 53369 002 1048576

VCID: 2540C908ECE1076ED9-8070


Subsystem 1 - Part number: 4F0 910 131 L

Component: FBSAUDIC6 EZS H43 0070


Subsystem 2 - Part number: 4F0 910 335

Component: FBSAUDIC6 KSG H25 0070


Subsystem 3 - Part number: 4F0 910 220 G

Component: FBSAUDIC6 IDG H43 0060


1 Error found:

00263 - Gearbox

004 - no signal/communication - sporadic

Ambient conditions:

Error status: 00100100

Error priority: 2

Error frequency: 1

Distributor counter: 115

Mileage: 109921 km

Time specification: 0

Date: 2018.02.21

Time: 16:48:41



-------------------------------------------------------------------------------

Address 07: No. /Operator unit label file: DRV\4F0-910-7xx-07-H. clb

Part number SW: 4F0 910 729 R HW: 4E0 035 729 A

Component: Interface Box H43 0500

Revision: 00000000 Serial number: 351JU047505639

Coding: 0000004

Operating no..: WSC 02335 785 00200

VCID: 387E107C4B538A8672-806C


Subsystem 1 - Part number: 4F0 910 609

Component: Control unit MMIC6H07 0870


Subsystem 2 - Serial number: 00000000073278


Subsystem 3 - Serial Number: 0128.10.04000000010001010503ÿ


Subsystem 4 - Serial number: 010503ÿ


No error code (s) found.


-------------------------------------------------------------------------------

Address 08: Air conditioning/heating element. label file: 4F0-910-043. clb

Part number SW: 4F0 910 043 HW: 4F1 820 043 J

Component: CLIMATE ACTIVITY H11 0110

Revision: 00000023 Serial number: 00000000075991

Coding: 0008230

Operating no..: WSC 02325 785 00200

VCID: 5BB4AFF09A25819EBF-800E


No error code (s) found.


-------------------------------------------------------------------------------

Address 09: Central Electricity Label File: DRV\4F0-910-279. lbl

Item number SW: 4F0 910 279 A HW: 4F0 907 279 A

Component: ILM Driver H14 0080

Revision: 00000000 Serial number: 4F0907279


Coding: 0113101

Operating no..: WSC 02335 785 00200

VCID: 275CC30096ED157EEB-8072


Subsystem 1 - Part number: 4F1 910 113 Label file: DRV\1KX-955-119. CLB

Component: Wiper AudiC6 H05 0150

Coding: 00062736

Operating no..: WSC 02335


Subsystem 2 - Part number: 4E0 910 557 Label file: DRV\8K0-955-559. CLB

Component: RAINLIGHT SENSOR 10 0050

Coding: 00141886

Operating no..: WSC 02335


No error code (s) found.


-------------------------------------------------------------------------------

Address 0E: Media Player 1 label file: DRV\4E0-910-111. lbl

Item number SW: 4E0 910 111 D HW: 4E0 035 111 A

Component: CD-Changer H44 0340

Revision: 00000000 Serial number: AUZ5ZBD6029466

Operating no..: WSC 00000 000 00000

VCID: 1A3AEAF4D59FB89664-804E


No error code (s) found.


-------------------------------------------------------------------------------

Address 15: Airbag label file: DRV\4F0-910-655-8R. clb

Part number SW: 4F0 910 655 D HW: 4F0 959 655 B

Component: 32 AIRBAG AUDI8RH29 0250

Revision: 05H29000 Serial number: 0037LD04GPJM

Coding: 0013106

Operating no..: WSC 18510 993 15888

VCID: 285EC03C9BF31A06E2-807C


Subsystem 1 - Serial number: 6332CSME06012245O


Subsystem 2 - Serial Number: 6342CSME06004B27Z


Subsystem 3 - Serial number: 6351HSME0466021B/


Subsystem 4 - Serial number: 6361HSME04465237%


Subsystem 5 - Serial number: 6371VSME044C463CS


Subsystem 6 - Serial number: 6381VSME0428477DT


No error code (s) found.


-------------------------------------------------------------------------------

Address 16: Steering wheel electronics label file: DRV\4F0-910-549. lbl

Part number SW: 4F0 910 549 HW: 4F0 953 549 A

Component: Steering column module H07 0230

Revision: 00H07000 Serial number: 9002504289090171


Operating no..: WSC 53369 002 1048576

VCID: 66C28E045167CC7610-8032


Subsystem 1 - Part number: XXXXXXXXXXXXXXXXXXXXXXX

Component: Steering wheel module H05 0080


No error code (s) found.


-------------------------------------------------------------------------------

Address 17: Switch panel insert label file: DRV\4F0-910-xxx-17. lbl

Part number SW: 4F0 910 900 A TC: 4F0 920 900 M

Component: COMBIINSTR. M73 H09 0630

Revision: 00300000 Serial number: 4LZ70LVA4

Coding: 0320343

Operating no..: WSC 00066 210 01865

VCID: 1E32E6E4C9B7D4B698-804A


No error code (s) found.


-------------------------------------------------------------------------------

Address 19: Diagnostics interface label file:. DRV\4F0-910-468. clb

Part number SW: 4F0 910 468 A HW: 4F0 907 468 B

Component: Gateway H09 0030

Revision: 09 Serial number: 0800804A180383

Coding: ECFE73CC1B0504

Operating no..: WSC 02325 785 00200

VCID: 275CC30096ED157EEB-8072


1 Error found:

01315 - Gearbox control unit

004 - no signal/communication - sporadic

Ambient conditions:

Error status: 00100100

Error priority: 2

Error frequency: 1

Distributor counter: 115

Mileage: 109921 km

Time specification: 0

Date: 2018.02.21

Time: 16:48:41



-------------------------------------------------------------------------------

Address 36: Seat adjuster Drive. label file: ninth

Part number SW: 4F0 910 760 TC: 4F0 959 760

Component: Seat memory FS H04 0050

Revision: 00000000 Serial number: 00000000896400

Coding: 0082954

Operating no..: WSC 02325 785 00200

VCID: 61C89D18B849AB4EE5-8034


No error code (s) found.



-------------------------------------------------------------------------------

Address 42: Driver's label file: DRV\4F0-910-793-42. lbl

Part number SW: 4F0 910 793 B HW: 4F0 959 793 B

Component: TSG FA H10 0020

Revision: 00000000 Serial number: 0

Coding: 0017130

Operating no..: WSC 02327 785 00200

VCID: 2958C53880F9230EFD-807C


No error code (s) found.


-------------------------------------------------------------------------------

Address 46: Comfort system label file:. 4F0-910-289. lbl

Part number SW: 4F0 910 289 E HW: 4F0 907 289 E

Component: Comfort device H14 0090

Revision: 00900014 Serial number: 0100139051010000

Coding: 0265465

Operating no..: WSC 18510 993 60143

VCID: 2C563C2C2C8F0B362606-8078


Subsystem 1 - Part number: 1K0 951 605 C

Component: LIN BACKUP HORN H02 1301


Subsystem 2 - Part number: 4F0 910 177

Part: Interior overlay H01 0020


2 error codes found:


01314 - Engine control unit

004 - no signal/communication - sporadic

Ambient conditions:

Error status: 00100100

Error priority: 3

Error frequency: 4

Distributor counter: 115

Mileage: 109921 km

Time specification: 0

Date: 2018.02.21

Time: 16:50:58


01134 - Alarm horn (H12)

012 - electrical fault in the circuit

Ambient conditions:

Error status: 01101100

Error priority: 3

Error frequency: 254

Distributor counter: 76

Mileage: 106220 km

Time specification: 0

Date: 2017.07.04

Time: 21:13:21



-------------------------------------------------------------------------------

Address 47: Soundsystem label file: DRV\4F0-910-223-BO. lbl.

Item number SW: 4F5 910 223 B HW: 4F5 035 223 C

Component: DSP-High C6 H14 0220

Revision: PROD_01 Serial number: 00000000013118

Coding: 0000016

Operating no..: WSC 02325 785 00200

VCID: 224AD214FDCFF056BC-8076


No error code (s) found.


-------------------------------------------------------------------------------

Address 4F: Central Electricity II label file: DRV\4F0-910-280. lbl

Part number SW: 4F0 910 280 HW: 4F0 907 280 A

Component: ILM Passenger H09 0050

Revision: Serial number: 00000000042352

Coding: 0001114

Operating no..: WSC 02323 785 00200

VCID: 5EB2A6E4893794B6D8-800A


No error code (s) found.
 
I don't know your particular car model but I would say, based on that scan, your handbrake could be the source. Check the can gateway as it could be something utterly simple and its just worked loose but the faults all seem to be around the gearbox. The behaviour you state could possibly be caused by the handbrake as if the car thought the handbrake was on it would disengage the drive logically.

If you can get someone to help you could have a look at some measuring blocks whilst the car is in motion (and hopefully see it when it fails). I can't remember the ones off the top of my head but somewhere around the 122 or a little higher would be it. You could also check the operation of the parking brake via measuring blocks as that would be my place to start looking,
 
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