10 A6 rear brakes lock up , ABS does not cut in , but live data reading lock up

   #1  

GUNT

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Hi , hope some one seen this before, driving along and press the brake , not even that hard , and the back wheels or sometimes just one will lock , and no matter how long its locked for the abs will not cut in nor will any lights come on the dash , no faults nor even a fault while it is happening , I have tried re coding the ecu , , its extremely dangerous , i can try and post vid of live data ,

Code:
Thursday,28,February,2019,15:02:03:34799
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x86
VCDS Version: 18.9.1.0
Data version: 20190114 DS296.0
www.Ross-Tech.com

Dealer/Shop Name: GUNT TUNING

VIN: WAUZZZ4F5AN052225   License Plate: 10C4152
Mileage: 198460km-123317mi   Repair Order: 



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


Chassis Type: 4F-AU56 (4F0)
Scan: 01 02 03 05 08 09 15 16 17 19 42 46 47 4F 52 53 56 5F 62 72
          76

VIN: WAUZZZ4F5AN052225   Mileage: 198460km-123317miles

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: Malfunction 0010
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: Malfunction 0010
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
42-Door Elect, Driver -- Status: Malfunction 0010
46-Central Conv. -- Status: Malfunction 0010
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
56-Radio -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
76-Park Assist -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (J623-CAGB)       Labels:| 03L-906-022-CAG.clb
   Part No SW: 03L 906 019 AF    HW: 03L 906 022 FG
   Component: R4 2,0L EDC   H03 6411  
   Revision: 11H03---    Serial number:               
   Coding: 0105002C02072120
   Shop #: WSC 02325 785 00200
   ASAM Dataset: EV_ECM20TDI03L906019AF A01006
   ROD: EV_ECM20TDI03L906019AF.rod
   VCID: 6FE6C717B61AE33234-803A

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

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 01J-927-156.lbl
   Part No SW: 4F5 910 157 F    HW: 01J 927 156 JG
   Component: V30 01J 2.0l CR RdW 0020  
   Revision: --H06---    Serial number: 00000000000329
   Coding: 0000001
   Shop #: WSC 02325 785 00200
   VCID: 2C5C101B8F8CD82A51-8078

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 4F0-910-517.lbl
   Part No SW: 4F0 910 517 AK    HW: 4F0 614 517 AT
   Component: ESP8 front      H03 0060  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0020856
   Shop #: WSC 80093 222 69422
   VCID: 6DDADD1F7416112206-8038

No fault code found.

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth.        Labels:. 4F0-910-852.clb
   Part No SW: 4F0 910 852 B    HW: 4F0 905 852 D
   Component: FBSAUDIC6 ELV   H05 0100  
   Revision: 00H05000    Serial number: 10602601484644
   Coding: 0000019
   Shop #: WSC 02324 785 00200
   VCID: 254AE53FEC66E9628E-8070

   Subsystem 1 - Part No: 4F0 910 132 E
   Component: FBSAUDIC6 EZS   H03 0020

   Subsystem 2 - Part No: 4F0 910 220 D
   Component: FBSAUDIC6 IDG   H01 0054

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 4F0-910-043.clb
   Part No SW: 4F0 910 043     HW: 4F2 820 043 K
   Component: KLIMABETAETIGUNGH20 0170  
   Revision: 00000033    Serial number: 00000030503002
   Coding: 0001044
   Shop #: WSC 02325 785 00200
   VCID: 5BBE83C79AA26F92E8-800E

1 Fault Found:
00256 - A/C Pressure/Temperature Sensor (G395) 
            002 - Lower Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 50
                    Mileage: 198412 km
                    Time Indication: 0
                    Date: 2019.02.27
                    Time: 10:41:55


-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 4F0-910-279.lbl
   Part No SW: 4F0 910 279 N    HW: 4F0 907 279 
   Component: ILM Fahrer      H22 0320  
   Revision: 00000000    Serial number: 4F0907279     
   Coding: 0009121
   Shop #: WSC 02335 785 00200
   VCID: 346C087B57BC80EA09-8060

   Subsystem 1 - Part No: 4F2 910 113 C  Labels: 1KX-955-119.CLB
   Component: Wischer AudiC6  H10 0040  
   Coding: 00056595
   Shop #: WSC 02335  

   Subsystem 2 - Part No: 8K0 910 557   Labels: 8K0-955-559.CLB
   Component: REGENLICHTSENSORH04 0003  
   Coding: 00146221
   Shop #: WSC 02335  

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:* 4F0-910-655-10.clb
   Part No SW: 4F0 910 655 Q    HW: 4F0 959 655 G
   Component: Airbag AU1042 H06 0160  
   Revision: --------    Serial number: 003F900241B2
   Coding: 30314236303630303033554A305234463053
   Shop #: WSC 02324 785 00200
   ASAM Dataset: EV_Airba10AURB4 001001
   ROD: EV_Airba10AURB4.rod
   VCID: 356A357F94C699E23E-8060

   Crash sensor for side airbag: driver side: 
   Serial number: 3574SRB40000A54C794B

   Crash sensor for side airbag: front passenger side: 
   Serial number: 3584SRB40000A554C175

   Crash sensor for side airbag: rear: driver side: 
   Serial number: 3516HRB402V9V7KGNBU$

   Crash sensor for side airbag: rear: passenger side: 
   Serial number: 3526HRB40279V7KH9C5M

   Crash sensor for front airbag: driver side: 
   Serial number: 3554NRB400004B730B7$

   Crash sensor for front airbag: front passenger side: 
   Serial number: 3564NRB400004B68003T

1 Fault Found:
12583424 - Powertrain Databus 
          U0002 00 [008] - No Communications
          [New feature! Extended UDS fault detail is only supported by current gen. interfaces]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 2


-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 4F0-910-549.lbl
   Part No SW: 4F0 910 549 A    HW: 4F0 953 549 D
   Component: J0527               0530  
   Revision: 00H05000    Serial number: 90055091270051
   Coding: 0102141
   Shop #: WSC 02323 785 00200
   VCID: 2756EF37966AFB72BC-8072

   Subsystem 1 - Part No: XXXXXXXXXXX 
   Component: E0221           H05 0080

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:. 4F0-920-xxx-17.clb
   Part No SW: 4F0 920 933 Q    HW: 4F0 920 933 Q
   Component: KOMBIINSTR.   H08 0147  
   Revision: 00000000    Serial number: DHK02PFD9     
   Coding: 2F56090502000008010800
   Shop #: WSC 02391 823 56573
   VCID: 356A357F9CC699E23E-8060

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 4F0-907-468.clb
   Part No SW: 4F0 907 468 M    HW: 4F0 907 468 F
   Component: GW-BEM 4CAN-M H06 0035  
   Revision: LB100029    Serial number: 2900L09C15010C
   Coding: 000B03
   Shop #: WSC 02391 823 56573
   VCID: 3972394FB0DE7D82DA-806C

   Subsystem 1 - Part No SW: 8K0 915 181 C    HW: 8K0 915 181 C
   Component: J367-BDM  H07 0107 
   Serial number: 00000000004149001915

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 4F0-959-793.clb
   Part No SW: 4F0 959 793 R    HW: 8K0 959 793 D
   Component: TSG FA        H11 0250  
   Revision:             Serial number: 0000102495333 
   Coding: 011C06204041410001
   Shop #: WSC 02391 823 56573
   VCID: 468842B3F120027AA7-8012

1 Fault Found:
03297 - Switch in Lock Cylinder; Driver Side 
            008 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 3
                    Fault Frequency: 4
                    Reset counter: 224
                    Mileage: 190558 km
                    Time Indication: 0
                    Date: 2009.10.17
                    Time: 17:10:18


-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 4F0-910-289.lbl
   Part No SW: 4F0 910 289 N    HW: 4F0 907 289 N
   Component: Komfortgeraet   H29 0250  
   Revision: 02500029    Serial number: 01256106880000
   Coding: 0131569
   Shop #: WSC 02335 785 00200
   VCID: 356A357F5CC699E23E-8060

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

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

1 Fault Found:
02935 - Control Circuit for Tail-Light; Right 
            009 - Open or Short to Ground - Intermittent
             Freeze Frame:
                    Fault Status: 00101001
                    Fault Priority: 3
                    Fault Frequency: 32
                    Reset counter: 16
                    Mileage: 197617 km
                    Time Indication: 0
                    Date: 2019.01.24
                    Time: 15:01:34


-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels: Redir Fail!
   Part No SW: 4F0 035 223 P    HW: 4F0 035 223 P
   Component: BOSE G3 C6    H01 0100  
   Revision: AG001300    Serial number: 00000000054691
   Coding: 0B000000
   Shop #: WSC 02391 823 56573
   VCID: 2952E90F407ECD02AA-807C

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   H13 0100  
   Revision:             Serial number: 00000000678757
   Coding: 0001104
   Shop #: WSC 02324 785 00200
   VCID: 5EB88AD389B07ABA8F-800A

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 4F0-959-792.clb
   Part No SW: 4F0 959 792 R    HW: 8K0 959 792 D
   Component: TSG BF        H11 0250  
   Revision:             Serial number: 0000102573623 
   Coding: 011C06204041410001
   Shop #: WSC 02391 823 56573
   VCID: 458A45BFCC260962AE-8010

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake        Labels: 4F0-910-801.clb
   Part No SW: 4F0 910 801 D    HW: 4F0 907 801 B
   Component: EPB  CEFC0090   H05 0090  
   Revision: --H05---    
   Coding: 0000131
   Shop #: WSC 02145 785 00200
   VCID: 2142F12FF84E0542F2-8074

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels: Redir Fail!
   Part No SW: 4F0 035 053 B    HW: 4F0 035 053 
   Component: Radio U Basic H45 0020  
   Revision: AB001007    Serial number: 341L/097690536
   Coding: 010003010000000000
   Shop #: WSC 02391 823 56573
   VCID: 1C3CC0DB1F2C28AA21-8048

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 4E0 035 666 C    HW: 4E0 035 666 C
   Component: H-BN-EU       H47 0047  
   Revision: --------    Serial number: 454L0097533448
   Coding: 01010100010282ED01000315EF6300030001
   Shop #: WSC 02391 823 56573
   VCID: 2648E2335160E27A87-8072

   Subsystem 1 - Part No: 8R0 060 884 J
   Component: EUR 2010  1005 

   Subsystem 2 - Part No SW: 4F0 919 604     HW: 4F0 919 604 
   Component: DU7 High  H43 0306 
   Serial number: 9356LY091160385     

   Subsystem 3 - Part No SW: 4F0 910 609 E    HW: 4F2 919 611 M
   Component: Bedienteil MM  H01 0060 
   Serial number: 00000001478794      

   Subsystem 4 - Part No: 8R0 906 961 A
   Component:   CD-Database  1293 

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 4F0-959-795.clb
   Part No SW: 4F0 959 795 M    HW: 8K0 959 795 B
   Component: TSG HL        H10 0251  
   Revision:             Serial number: 0000102580604 
   Coding: 010804204041220001
   Shop #: WSC 02391 823 56573
   VCID: 438E5BA7C212375280-8016

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 4F0-959-795.clb
   Part No SW: 4F0 959 795 M    HW: 8K0 959 795 B
   Component: TSG HR        H10 0251  
   Revision:             Serial number: 0000102580601 
   Coding: 010804204041220001
   Shop #: WSC 02391 823 56573
   VCID: 438E5BA7C212375280-8016

No fault code found.

-------------------------------------------------------------------------------
Address 76: Park Assist        Labels: 4Fx-910-283.lbl
   Part No SW: 4L0 910 283 B    HW: 4L0 919 283 B
   Component: Parkhilfe 4-Kan H02 0500  
   Revision: 00H02000    Serial number: 12331000900184
   Coding: 0001006
   Shop #: WSC 02324 785 00200
   VCID: 2952E90F807ECD02AA-807C

No fault code found.

End-------------------------(Elapsed Time: 03:18)--------------------------
 
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   #2  

Jack@European_Parts

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[h=2]10 A6 rear brakes lock up , ABS does not cut in , but live data reading lock up[/h]
Hi , hope some one seen this before, driving along and press the brake , not even that hard , and the back wheels or sometimes just one will lock , and no matter how long its locked for the abs will not cut in nor will any lights come on the dash , no faults nor even a fault while it is happening , I have tried re coding the ecu , , its extremely dangerous , i can try and post vid of live data ,​


Most likely a mechanical problem not a coding problem.

RTFB and test verify and fix mechanical error.

Have you replaced the rear caliper that is in drag condition and tested for sticking or for burr?

What happens when you crimp a rubber line for stuck zone & after stuck condition has happened, did you isolate the zone by opening the bleeder to see if this is indeed a hydro-static error or if as you speculate from ABS unit & to determine hold PSI or mechanical defect?
 
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   #3  

Jef

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Thank you for posting the Auto-Scan. :thumbs:

  • Are the rear brakes dragging? Getting super hot from normal driving?
  • Tires all the same size/brand?
  • Can you feel the ABS pump kicking in when this happens?
 
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   #4  

GUNT

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ok
tyres same size , calipers not binding , none changed either , the rear is locking up when braking but the ecu does not engage abs pumping , nor does it create a fault , i can leave 100ft of rubber on the road and still nothing , i incorrectly coded a abs unit ion mk5 golf and created the same sanario , live data is picking everything up and still nothing
 
   #5  

Zenerdiode

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Most ABS modules will drop the diagnostic session if you go over a certain speed. Are you ensuring you keep below this level?
 
   #6  

Jack@European_Parts

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Go get the car SVM or install original coding.
Verify no FOD!
 
   #7  

GUNT

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does this in or out of diagnostics , and code verified , and checked , the live data test was to check if the ecu was actually seeing the wheels locking up
 
   #8  

TFSI

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Gunt,

Has there been recent work done on the ABS hydraulic block unit?
I had a similar case but on a VW Golf where somebody interchanged the brake pipes connections (wrong connections) on the abs hydraulic unit from VL/VR HL/HR...so during braking the wheels lock with no abs intervention.
Double check these connections to ensure they are right especially if there has been recent work in that area.
 
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   #9  

GUNT

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, nothing changed of late , i will check , it would have a merky past
 
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