2006 Audi A6 C6 ABS Fault 01435

   #1  

davisev5225

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Hello,

I've been having an intermittent issue with my ABS controller, and I'm hoping someone here can help me make sense of it.

Most (but not all) of the time that I start my car and begin driving, shortly after I begin my trip, my ABS module will throw out error code 01435 - implausible signal. However, every time I test my brakes, everything works fine. The brake light switch is functioning properly, the brake pressure sensor is reading accurate pressures, etc. I can clear the code, then continue my trip (for as long as I want) with no further issues - cruise control works, I've had the unfortunate pleasure of finding out that the ABS pump still functions, etc. I have also already replaced the brake light switch, just in case, since it was an inexpensive part. "When in doubt, swap it out."

I've attached a full scan of my car, as well as links to screenshots of some of the measuring block values. The only thing I didn't catch, because I only saw it once and couldn't grab a screenshot before it went away, is for a couple seconds I had a NEGATIVE value for my brake pressure reading while holding down the pedal.

Does anyone know what is going on? I'm hoping to avoid changing my ABS pump and control module, as that is a rather expensive repair.

ABS ERROR:
Code:
Monday,22,July,2019,06:22:15:10305
VCDS Version: Release 19.6.1 (x64) Running on Windows 10 x64
www.Ross-Tech.com

                Address 03: ABS Brakes       Labels: 4F0-910-517.clb
Control Module Part Number: 4F0 910 517 L    HW: 4F0 614 517 L
  Component and/or Version: ESP 8.0 quattro H04 0090
           Software Coding: 0020895
            Work Shop Code: WSC 02325 785 00200
                      VCID: 2D516BBEB4397F2702-8078
1 Fault Found:

01435 - Brake Pressure Sensor 1 (G201) 
            008 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 0
                    Mileage: 304009 km
                    Time Indication: 0
                    Date: 2019.07.22
                    Time: 06:18:34

             Freeze Frame:
                    Hex Value: 0x1600
                    Hex Value: 0x4006
                    Hex Value: 0x001C
                    Hex Value: 0xB1AB
                    Hex Value: 0x00FF
SCREENSHOTS:
https://www.dropbox.com/sh/aptace1euzd3uwt/AACkLKU8hfWAjNfcFT9-1xyia?dl=0

FULL SCAN:
Code:
Tuesday,23,July,2019,13:09:53:10305
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.1.0 (x64)
Data version: 20190529 DS308.0
www.Ross-Tech.com


VIN: WAUKH74F86N------   License Plate: 


Chassis Type: 4F (4F0)
Scan: 01 02 03 05 07 08 09 0E 0F 15 16 17 19 36 37 42 46 47 4F 52
          53 55 56 61 62 65 67 72 76 77

VIN: WAUKH74F86N------   Mileage: 304290km-189077miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
05-Acc/Start Auth. -- Status: OK 0000
07-Control Head -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: OK 0000
0E-Media Player 1 -- Status: OK 0000
0F-Digital Radio -- 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
36-Seat Mem. Drvr -- Status: OK 0000
37-Navigation -- Status: Malfunction 0010
42-Door Elect, Driver -- Status: OK 0000
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: Malfunction 0010
55-Headlight Range -- Status: OK 0000
56-Radio -- Status: OK 0000
61-Battery Regul. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: OK 0000
67-Voice Control -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
76-Park Assist -- Status: OK 0000
77-Telephone -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (AUK)       Labels:. 06E-910-559-BKH.clb
   Part No SW: 4F1 910 559 E    HW: 4F1 907 559 A
   Component: 3.2l V6 FSI         0060  
   Revision: --H15---    Serial number:               
   Coding: 010D0109190F0120
   Shop #: WSC 02325 785 00200
   VCID: 2D516BBEB4397F2702-8078

1 Fault Found:
005715 - Please check DTC Memory of ABS Controller 
               P1653 - 008 - 
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 40
                    Mileage: 304286 km
                    Time Indication: 0
                    Date: 2019.07.23
                    Time: 12:58:59

             Freeze Frame:
                    RPM: 1024 /min
                    Mass Air / Rev.: 87.2 mg/str
                    Temperature: 97.5°C
                        Idle
                    Load: 11.4 %
                    Speed: 0.0 km/h

Readiness: 0000 0100

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 09L-927-760.lbl
   Part No SW: 4F2 910 156 D    HW: 09L 927 156 A
   Component: AG6 09L 3,2 FSI USA 0010  
   Revision: --H01---    Serial number:        4121901
   Coding: 0000002
   Shop #: WSC 02325 785 00200
   VCID: 2643949291CF4C7FC3-8072

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 4F0-910-517.clb
   Part No SW: 4F0 910 517 L    HW: 4F0 614 517 L
   Component: ESP 8.0 quattro H04 0090  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0020895
   Shop #: WSC 02325 785 00200
   VCID: 2D516BBEB4397F2702-8078

1 Fault Found:
01435 - Brake Pressure Sensor 1 (G201) 
            008 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 4
                    Mileage: 304286 km
                    Time Indication: 0
                    Date: 2019.07.23
                    Time: 12:59:00

             Freeze Frame:
                    Hex Value: 0x00C0
                    Hex Value: 0x43A2
                    Hex Value: 0x001C
                    Hex Value: 0xB1A2
                    Hex Value: 0x00FF


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth.        Labels:. 4F0-910-852.clb
   Part No SW: 4F0 910 852     HW: 4F0 905 852 B
   Component: FBSAUDIC6 ELV   H31 0180  
   Revision: 30070501    Serial number: 10604000310700
   Coding: 0000143
   Shop #: WSC 22162 444 84622
   VCID: 63C5CD86A27DF957E4-8036

   Subsystem 1 - Part No: 4F0 910 131 L
   Component: FBSAUDIC6 EZS   H45 0070

   Subsystem 2 - Part No: 4F0 910 335 
   Component: FBSAUDIC6 KSG   H27 0080

No fault code found.

-------------------------------------------------------------------------------
Address 07: Control Head        Labels: 4F0-910-7xx-07-H.clb
   Part No SW: 4F0 910 732 Q    HW: 4E0 035 729 
   Component: Interfacebox    H43 4610  
   Revision: 00000000    Serial number: 303LU057513496
   Coding: 0001003
   Shop #: WSC 00000 000 08192
   VCID: 316977CEA8011BC726-8064

   Subsystem 1 - Part No: 4F0 910 609 E
   Component: Bedienteil MMIC6H09 0060

   Subsystem 2 - Serial number: 00000002106611

   Subsystem 3 - Serial number: 0111.04.130000000100010057ÿ

   Subsystem 4 - Serial number: 010057ÿ

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 4F0-910-043.clb
   Part No SW: 4F0 910 043     HW: 4F1 820 043 S
   Component: KLIMABETAETIGUNGH12 0160  
   Revision: 00000027    Serial number: 00000030079589
   Coding: 0524582
   Shop #: WSC 02325 785 00200
   VCID: 5BB5F5669A0DC197AC-800E

1 Fault Found:
00739 - Coolant Circulation Pump (V50) 
            001 - Upper Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100001
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 40
                    Mileage: 303976 km
                    Time Indication: 0
                    Date: 2019.07.22
                    Time: 05:53:43

             Freeze Frame:
                    Temperature: 91.0°C


-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 4F0-910-279.lbl
   Part No SW: 4F0 910 279 D    HW: 4F0 907 279 
   Component: ILM Fahrer      H15 0190  
   Revision: 00000000    Serial number: 4F0907279     
   Coding: 0014123
   Shop #: WSC 02335 785 00200
   VCID: 2A5B60A285D7681FE7-807E

   Subsystem 1 - Part No: 4F1 910 113   Labels: 1KX-955-119.CLB
   Component: Wischer AudiC6  H05 0150  
   Coding: 00062736
   Shop #: WSC 02335  

   Subsystem 2 - Part No: 4E0 910 557   Labels: 8K0-955-559.CLB
   Component: REGENLICHTSENSORH11 0050  
   Coding: 00207440
   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: AUZ5ZBE7263378
   Shop #: WSC 00000 000 00000
   VCID: 1C37B67ADF8386AF65-8048

No fault code found.

-------------------------------------------------------------------------------
Address 0F: Digital Radio        Labels: 4E0-910-593-XM.lbl
   Part No SW: 4E0 910 593 G    HW: 4E0 035 593 C
   Component: SDAR XM         H04 0670  
   Revision: 00000000    Serial number: AUZ4Z7E0036900
   Shop #: WSC 00000 000 00000
   VCID: 2B5565A68A2D71171C-807E

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 4F0-910-655-8R.clb
   Part No SW: 4F0 910 655 F    HW: 4F0 959 655 A
   Component: 66 AIRBAG AUDI8RH29 0300  
   Revision: 14H29000    Serial number: 00359D0B0SG%  
   Coding: 0013878
   Shop #: WSC 02325 785 00200
   VCID: 2A5B60A285D7681FE7-807E

   Subsystem 1 - Part No: 4F0 910 339 A
   Component: BF-Gewichtsens. H02 0050

   Subsystem 2 - Serial number: 6332CSME0D3D03755

   Subsystem 3 - Serial number: 6342CSME0D3C74089

   Subsystem 4 - Serial number: 6352QSME07174677G

   Subsystem 5 - Serial number: 6362QSME07561A119

   Subsystem 6 - Serial number: 63734SME0527123F-

   Subsystem 7 - Serial number: 63834SME070E29472

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: 90026053240045
   Coding: 0002142
   Shop #: WSC 02323 785 00200
   VCID: 66C3D492514F8C7F03-8032

   Subsystem 1 - Part No: XXXXXXXXXXX 
   Component: Lenkradmodul    H07 0090

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 4F0-910-xxx-17.lbl
   Part No SW: 4F0 910 930 A    HW: 4F0 920 980 N
   Component: KOMBIINSTR. M73 H16 0630  
   Revision: 00200000    Serial number: 4PY57VXC5     
   Coding: 3153203
   Shop #: WSC 22162 067 57207
   VCID: 2149878EF8E1AB47B6-8074

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 4F0-910-468.clb
   Part No SW: 4F0 910 468 A    HW: 4F0 907 468 D
   Component: Gateway         H11 0070  
   Revision: 11          Serial number: 1300805C060338
   Coding: ECFE73CD1B7904
   Shop #: WSC 02334 785 00200
   VCID: 275D999696C55577F8-8072

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr        Labels: None
   Part No SW: 4F0 910 760     HW: 4F0 959 760 
   Component: Sitzmemory FS   H04 0050  
   Revision: 00000000    Serial number: 00000000896400
   Coding: 0082954
   Shop #: WSC 02334 785 00200
   VCID: 61C9C78EB861EB47F6-8034

No fault code found.

-------------------------------------------------------------------------------
Address 37: Navigation        Labels: 4E0-910-88x-37.lbl
   Part No SW: 4E0 910 888 M    HW: 4E0 919 887 C
   Component: MNS US          H45 1100  
   Revision: 00000000    Serial number: 355KX057557242
   Shop #: WSC 02323 785 00200
   VCID: 387F4AEA4B7BCA8F61-806C

1 Fault Found:
02261 - Data Medium 
            014 - Defective - Intermittent
             Freeze Frame:
                    Fault Status: 00101110
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 35
                    Mileage: 303792 km
                    Time Indication: 0
                    Date: 2019.07.18
                    Time: 19:11:26

             Freeze Frame:
                    Hex Value: 0x5D30
                    Hex Value: 0xC45E
                    Hex Value: 0x0E00
                    Hex Value: 0x75BC


-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels: 4F0-910-793-42.lbl
   Part No SW: 4F0 910 793 E    HW: 4F0 959 793 E
   Component: TSG FA          H12 0270  
   Revision: 00-00000    
   Coding: 0052907
   Shop #: WSC 22162 444 84622
   VCID: 2C5766BA8F23762F15-8078

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 4F0-910-289.lbl
   Part No SW: 4F0 910 289 G    HW: 4F0 907 289 G
   Component: Komfortgeraet   H22 0170  
   Revision: 01700022    Serial number: 01009192410000
   Coding: 4618941
   Shop #: WSC 02335 785 00200
   VCID: 2E536CB2B93F043F3B-807A

   Subsystem 1 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HORN H03 1301

1 Fault Found:
01134 - Alarm Horn (H12) 
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 3
                    Fault Frequency: 254
                    Reset counter: 4
                    Mileage: 280724 km
                    Time Indication: 0
                    Date: 2019.01.03
                    Time: 17:52:33


-------------------------------------------------------------------------------
Address 47: Sound System        Labels: 4F0-910-223-BO.lbl
   Part No SW: 4F0 910 223 J    HW: 4F0 035 223 G
   Component: DSP-High C6     H09 0240  
   Revision: PROD_01     Serial number: 00000000702745
   Coding: 0000126
   Shop #: WSC 22162 444 999999
   VCID: 2541939EECC94767CA-8070

No fault code found.

-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II        Labels: 4F0-910-280.lbl
   Part No SW: 4F0 910 280     HW: 4F0 907 280 B
   Component: ILM Beifahrer   H10 0080  
   Revision:             Serial number: 00000000013563
   Coding: 0002114
   Shop #: WSC 02323 785 00200
   VCID: 5EB3FC72891FD4BFCB-800A

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels: 4F0-910-793-52.lbl
   Part No SW: 4F0 910 793 E    HW: 4F0 959 792 E
   Component: TSG BF          H12 0270  
   Revision: 00-00000    
   Coding: 0052907
   Shop #: WSC 22162 444 84622
   VCID: 2C5766BA8F23762F15-8078

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: 0005022
   Shop #: WSC 02334 785 00200
   VCID: 5DB1FB7E8419CFA7D2-8008

1 Fault Found:
01316 - ABS Control Module 
            013 - Check DTC Memory - Intermittent
             Freeze Frame:
                    Fault Status: 00101101
                    Fault Priority: 3
                    Fault Frequency: 8
                    Reset counter: 44
                    Mileage: 304280 km
                    Time Indication: 0
                    Date: 2019.07.23
                    Time: 12:59:34

             Freeze Frame:
                    Voltage: 12.63 V
                    Count: 236


-------------------------------------------------------------------------------
Address 55: Headlight Range        Labels: 4F0-910-357.lbl
   Part No SW: 4F0 910 357 E    HW: 4F0 907 357 E
   Component: AFS 1           H01 0010  
   Revision: 00000001    Serial number:               
   Coding: 0000016
   Shop #: WSC 02325 785 00200
   VCID: 285F9AAA9BDB5A0FF1-807C

   Subsystem 1 - Part No: 4F0 941 329 A
   Component: AFS-Modul links H05 0010

   Subsystem 2 - Part No: 4F0 941 329 A
   Component: AFS-Modul rechtsH05 0010

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 4E0-910-541.lbl
   Part No SW: 4E0 910 541 T    HW: 4F0 035 541 B
   Component: TUNER EU/US/RDW H42 0630  
   Revision: 00000000    Serial number: 394L+057632927
   Coding: 0000002
   Shop #: WSC 02323 785 00200
   VCID: 316977CEA8011BC726-8064

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  H12 0470  
   Revision: 00000000    Serial number: 00000000006954
   Shop #: WSC 03830 444 45040
   VCID: 23458D86E2FDB957A4-8076

   Subsystem 1 - Part No: 4F0 915 105 C
   Component: von VA0  170129T0X7       
   Coding: 344630393135313035432056413031373031323954305837
   Shop #: WSC 99999 444 16786

2 Faults Found:
02479 - Partial Consumer Shut-Off Active 
            000 - - - Intermittent
             Freeze Frame:
                    Fault Status: 00100000
                    Fault Priority: 7
                    Fault Frequency: 36
                    Reset counter: 255
                    Mileage: 303538 km
                    Time Indication: 0
                    Date: 2019.07.17
                    Time: 17:14:48

02254 - Interface to Generator 
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 4
                    Fault Frequency: 43
                    Reset counter: 44
                    Mileage: 303538 km
                    Time Indication: 0
                    Date: 2019.07.17
                    Time: 17:14:55


-------------------------------------------------------------------------------
Address 62: Door, Rear Left        Labels: 4F0-910-795.lbl
   Part No SW: 4F0 910 795 E    HW: 4F0 959 795 E
   Component: TSG HL          H21 0050  
   Coding: 0052778
   Shop #: WSC 02327 785 00200
   VCID: 2E536CB2B93F043F3B-807A

No fault code found.

-------------------------------------------------------------------------------
Address 65: Tire Pressure        Labels: 4F0-910-273-BA.lbl
   Part No SW: 4F0 910 273 B    HW: 4F0 907 273 A
   Component: Reifendruck 3   H05 0100  
   Revision: 00050100    Serial number: 00000900015030
   Coding: 0062221
   Shop #: WSC 02334 785 00200
   VCID: 224B8882FDE7B05FAF-8076

No fault code found.

-------------------------------------------------------------------------------
Address 67: Voice Control        Labels: 4E0-910-75x-67.lbl
   Part No SW: 4E0 910 754 Q    HW: 4E0 035 753 A
   Component: SDS 3501 US     H45 0630  
   Revision: 00000000    Serial number: 00000511290193
   Shop #: WSC 12336 024 394758
   VCID: 34677EDA57132EEF4D-8060

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right        Labels: 4F0-910-795.lbl
   Part No SW: 4F0 910 795 E    HW: 4F0 959 794 E
   Component: TSG HR          H21 0050  
   Coding: 0052778
   Shop #: WSC 02327 785 00200
   VCID: 2E536CB2B93F043F3B-807A

No fault code found.

-------------------------------------------------------------------------------
Address 76: Park Assist        Labels: 4Fx-910-283.lbl
   Part No SW: 4F0 910 283 B    HW: 4F0 919 283 B
   Component: Parkhilfe 4-Kan H09 0030  
   Revision: 00H09000    Serial number: 11720533417232
   Coding: 0201216
   Shop #: WSC 131071 1023 2097151
   VCID: 23458D86E2FDB957A4-8076

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 4E0-910-336.lbl
   Part No SW: 4F0 910 336 H    HW: 4E0 862 335 
   Component: Handyvorb2      H11 1130  
   Revision: 00000000    Serial number: 00000007525555
   Coding: 0010900
   Shop #: WSC 00000 000 00000
   VCID: 285F9AAA9BDB5A0FF1-807C

No fault code found.

End-------------------------(Elapsed Time: 02:56)--------------------------
 
Last edited:
   #2  

Uwe

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Nice post.

Obviously, you've been to the Wiki article for this fault.

It sure would be nice if Audi provided more details as to what can cause this "Implausible Signal" code. To me it means the value from the brake pressure sensor isn't reasonable given other values the ABS module is seeing at the same time.

I really wonder about that negative value.. Have you logged Group 9 while driving?

-Uwe-
 
   #3  

davisev5225

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My phone ate my first attempted reply...

This is a Bosch controller, so unfortunately, I cannot log anything while driving. Also of interest, now that I've made a post about it, my car has been behaving itself all day today. Go figure.

And yes, I live by your wiki when doing diagnostics work. It's a wonderful resource. I always start there, and only go elsewhere if it doesn't have enough/any information. Unfortunately, even "elsewhere" doesn't have anything terribly helpful for this one.
 
   #4  

Jack@European_Parts

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The sensor is bad, there is a connection issue, ( most likely bad ground since happens cold )contaminated fluid port (doubtful) or faulty ABS module.
The negative value is when sensor reading went or goes offline.
 
   #5  

davisev5225

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The sensor is bad, there is a connection issue, ( most likely bad ground since happens cold )contaminated fluid port (doubtful) or faulty ABS module.
The negative value is when sensor reading went or goes offline.
Just to clarify and make sure we're on the same page... is that ANY negative value, or just a negative value such as -1? My sensor gave a negative value equivalent to what the actual pressure should be if positive. It was 30-something bar, except negative.
 
   #6  

Jack@European_Parts

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Unplug it and watch values in blocks or additionally hook up a decade box and watch blocks as you tap out reading's to qualify the circuit.
 
   #7  

davisev5225

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Unplug it and watch values in blocks or additionally hook up a decade box and watch blocks as you tap out reading's to qualify the circuit.
I'm afraid you've lost me. There's only a single plug to the ABS controller, so if I unplug it, I can't communicate with it anymore. And what is a decade box?
 
   #8  

Jack@European_Parts

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Variable resister in this case to put between controller and sensor.
JPPSG it's in there & Google it.
Plug to ABS module doesn't mean anything being a single wire, what's the point of your statement?
 
   #9  

davisev5225

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Variable resister in this case to put between controller and sensor.
JPPSG it's in there & Google it.
Plug to ABS module doesn't mean anything being a single wire, what's the point of your statement?
The sensor is built into the controller, so I can't put anything between them.

Single plug means I can't power or communicate with the module if I unplug it, so I also can't try and isolate a single output from it without ruining my wire loom.

It's sounding like I need to replace the module. Didn't want to, but it is what it is. Thank you both for your assistance.
 
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Jack@European_Parts

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The sensor is built into the controller, so I can't put anything between them.

Single plug means I can't power or communicate with the module if I unplug it, so I also can't try and isolate a single output from it without ruining my wire loom.

It's sounding like I need to replace the module. Didn't want to, but it is what it is. Thank you both for your assistance.


Oh sigh.........





Nope...........

Wire looms can be taken apart without ruining them, time to get proficient?

 
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davisev5225

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Wire looms can be taken apart without ruining them, time to get proficient?
Yeah, no thanks. Already dealing with that headache on my 2001 Allroad. The "eco friendly" biodegradable wiring that Audi used, combined with the 13-year-old heat-damaged plastics, means it is stupidly easy to break a wire or snap a connector. This is my daily driver, I don't want to be replacing sections of the loom because the insulation disintegrated, or the connector broke in half.
 
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Uwe

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This is a Bosch controller, so unfortunately, I cannot log anything while driving.
At what speed does it hang up the connection?

-Uwe-
 
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davisev5225

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Broadcast shuts down at approx 15 mph usually & some as high as 25 mph depending on where set for COM.
I'm pretty sure it's lower than that. I've been coasting in stop-and-go traffic with no connection.

I'll see if I can figure it out sometime in the near future.
 
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davisev5225

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So... this was interesting. I've tried to figure out what speed the ABS controller stops communicating at, but I still cannot say. It will not allow me to open a new diagnostics session, nor will it allow me to send commands to an existing one, but it WILL maintain an existing logging session, so long as it was started while the vehicle was stationary!

Log for a trip to and from the grocery store uploaded to the Dropbox link in my original post. There are quite a few entries with varying negative values for the brake pressure.
 
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Uwe

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Log for a trip to and from the grocery store uploaded to the Dropbox link in my original post. There are quite a few entries with varying negative values for the brake pressure.
I guess the question now is whether that's really the cause of the DTC. Clear the fault code. Try to reproduce a negative value. Is that when the fault code sets?

-Uwe-
 
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