VW Passat and ABS problem

   #1  

V3lmu

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Hey! :)

I'm looking at a VW Passat MY02 and its abs malfunction.

The owner had driven with cool and damp weather their car until the distance between the instrument cluster to become the abs and traction control lights.

Parts have been replaced / tested:
- 2 pcs units of ABS (Brain and Hydraulics block)
- 3 pcs brake pressure sensors
- 1 pcs new brake pedal sensor
- The current stationary abs unit has the following non-resettable fault code: 01435 - Brake Pressure Sensor 1 (G201) 57-00 - Electric Circuit Failure.
- The other ABS unit had not received the coding by the car electrical repair.

I run out of ideas for this problem. Anyone have any repercussions on how to stop the malfunctioning lights?

Auto-Scan log
Code:
Tuesday,22,October,2019,19:02:01:00464
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.2.0 (x64)  HEX-V2 CB: 0.4508.4
Data version: 20190930 DS308.0
[url]www.Ross-Tech.com[/url]

Dealer/Shop Name: J.P

VIN: WVWZZZ3BZ3P096336   License Plate: ABS PASSAT
Mileage: 235650km-146426mi   Repair Order: 



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


Chassis Type: 3B (3B - VW Passat B5 (1997 > 2005))
Scan: 01 02 03 08 15 16 17 19 35 36 37 46 47 55 56 57 58 75 76 77
         
 
VIN: WVWZZZ3BZ3P096336   Mileage: 235650km-146426miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06B-907-557-ALT.lbl
   Part No SW: 3B0 907 557 R    HW:             
   Component: 2.0L R4/5VS         0001  
   Coding: 0011501
   Shop #: WSC 00028 000 00000
   VCID: 382928F7BE4396C7317-5160

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 4B0-614-517.lbl
   Part No: 4B0 614 517 G
   Component: ABS/ESP front       1728  
   Coding: 04275
   Shop #: WSC 00000  
   VCID: 2517F1831CF11B2F9A1-51F2

2 Faults Found:
01486 - System Function Test Activated 
            35-00 - -
01435 - Brake Pressure Sensor 1 (G201) 
            57-00 - Electric Circuit Failure

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 B
   Component: 0A AIRBAG VW51 04   0004  
   Coding: 12353
   Shop #: WSC 00028  
   VCID: 2313EF9B12C5E51FF45-513C

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 3B0-920-xx5-17.lbl
   Part No: 3B0 920 827 
   Component: KOMBI+WEGFAHRSP VDO V08  
   Coding: 05115
   Shop #: WSC 00000  
   VCID: 619FA5934859B70FA69-513C
   WVWZZZ3BZ3P096336     VWZ7Z0B5569029

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: Gateway K<->CAN    0001  
   Coding: 00006
   Shop #: WSC 00028  
   VCID: 70B9D0D793B30E87397-513C

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1C0-959-799.lbl
   Part No: 1C0 959 799 A
   Component: 6Z Komfortgerát HLO 0001  
   Coding: 00067
   Shop #: WSC 00094  
   VCID: 353721C3AC516BAF2A1-4B1E

   Subsystem 1 - Part No: 1C1959801
   Component: 6Z Tõrsteuer.FS KLO 0004  

   Subsystem 2 - Part No: 1C1959802
   Component: 6Z Tõrsteuer.BF KLO 0004  

1 Fault Found:
00929 - Locking Module for Central Locking; Front Passenger Side (F221) 
            27-00 - Implausible Signal

End----------(Elapsed Time: 04:42, VBatt start/end: 13.6V/13.6V)-----------
 
   #3  

V3lmu

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Have You checked wiring from G201 to ABS module?
We have not yet checked the electrical connections.
Does anyone know any websites, which could be studied electrical diagram of the VAG-Group's cars?

What does MVB 005-3 shows?
Code:
Wednesday,23,October,2019,18:55:25:00464
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.2.0 (x64)  HEX-V2 CB: 0.4508.4
Data version: 20190930 DS308.0
www.Ross-Tech.com

Dealer/Shop Name: J.P




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


                Address 03: ABS Brakes  (4B0 614 517 G)

18:55:19 Group 005
  -2.5°  Steering Angle Sensor (G85)
  0.00°/s  Rotation Rate 
  291.97 bar  Brake Pressure 
  0.00 m/s*2  Transverse Acceleration
 
   #5  

MartinsX

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Code:
                Address 03: ABS Brakes  (4B0 614 517 G)

18:55:19 Group 005
  -2.5°  Steering Angle Sensor (G85)
  0.00°/s  Rotation Rate 
 [COLOR="#FF0000"] 291.97 bar  Brake Pressure [/COLOR]
  0.00 m/s*2  Transverse Acceleration
This looks like open/short to plus condition.
 
   #6  

V3lmu

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Okay. So does this mean that the owner needs to start investigating the electrical connections more closely?
 
   #8  

V3lmu

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Sounds easy job :)
 
   #9  

V3lmu

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Problem solved! :rolleyes:

Original "repaired" abs unit, replaced by a workshop to another used abs unit. This is followed by coding to the original abs unit and calibration of the G85 sensor.

There is strong suspicion that the original "repaired" abs unit was not correctly repaired.

Prior to this operation, the power cords had been checked and there were power cords in good condition and voltages OK.
 
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