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Thread: ABS issues

  1. #1
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    ABS issues

    Hi All

    This my first time of using this software and I’m more of a DIY mechanic (not on electrics, absolute beginner) so keep suggestions in simple terms please.

    Long story short, I purchased this car a week ago with 1 warning light flashing, I checked the basics sensors and rings etc, nothing wrong so I took the car to my mate who plugged his Snap-on machine in, code below.



    01542 Yaw rate sensor (G202) electrical problem in circuit
    01468 System function test activated

    After reading up on that code I thought it strange that the ABS light wasn’t flashing so I decided to take the dials out and investigate, sadly under the black layer with the writing on, the tunnels down to the ABS & EML lights had been filled with black silicone to mask the problems.

    So this car has been molested before I purchased it, I’m kicking myself for not noticing but I’m stuck with it now so here goes.

    I have changed the sensor (1J0 907 657 B) for a second hand one and since then purchased VCDS-Lite and the results are below.

    Code:
    VCDS-Lite Version: Release 1.2
    Monday, 03 October 2016, 22:24:53:523
     
     
    Chassis Type: 8L - Audi A3/S3
    Scan: 01,02,03,08,15,16,17,22,35,37,45,55,56,57,75,76
     
    -------------------------------------------------------------------------------
    Address 01: Engine       Labels: 06A-906-032-AUM.LBL
       Controller: 06A 906 032 HL
       Component: 1.8L R4/5VT         0001
       Coding: 11530
       Shop #: WSC 00186
       VCID: 6F9152B43E85
       WAUZZZ8L02A002535     AUZ5Z0A6024009
    No fault code found.
    Readiness: 0000 0000
     
    -------------------------------------------------------------------------------
    Address 02: Auto Trans       Labels: 01M-927-733.LBL
       Controller: 01M 927 733 JJ
       Component: AG4 Getriebe 01M    4827
       Coding: 00000
       Shop #: WSC 00000
       VCID: 8175840C9811
    No fault code found.
     
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes       Labels: None
       Controller: 1C0 907 379 E
       Component: ESP FRONT MK60      0104
       Coding: 0000000
       Shop #: WSC 80093
       VCID: 2C2B85B8CF13
    1 Fault Found:
    01486 -  System Function Test Activated
                000 -   -
     
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC       Labels: Redir Fail!
       Controller: 8L0 820 043 K
       Component: A3  KLIMAAUTOMAT   0105
       Coding: 00041
       Shop #: WSC 06435
       VCID: 301391C8E33B
    No fault code found.
     
    -------------------------------------------------------------------------------
    Address 15: Airbags       Labels: 8L0-959-655-AI8.LBL
       Controller: 8L0 959 655 J
       Component: Airbag Front+Seite 5008
       Coding: 01104
       Shop #: WSC 06435
       VCID: 45FDD01C4CB9
    No fault code found.
     
    -------------------------------------------------------------------------------
    Address 17: Instruments       Labels: 8L0-920-xxx-17.LBL
       Controller: 8L0 920 980 P
       Component: KOMBI+WEGFAHRS. M73 D07
       Coding: 00444
       Shop #: WSC 00319
       VCID: 40F3C108539B
       WAUZZZ8L02A002535     AUZ5Z0A6024009
    No fault code found.
     
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks       Labels: 8D0-862-257.LBL
       Controller: 8D0 862 257 E
       Component: CV-Pump, Alarm, RC  D17
       Coding: 15178
       Shop #: WSC 06435
       VCID: 2F1192B4FE05
    6 Faults Found:
    01371 -  Alarm triggered by Door Contact Switch; Driver's Side
                35-00 -   -
    01374 -  Alarm triggered by Terminal 15
                35-00 -   -
    01370 -  Alarm triggered by Interior Monitoring
                35-00 -   -
    01369 -  Alarm triggered by Hood Switch
                35-00 -   -
    00955 -  Key 1
                09-00 -  Adaptation Limit Surpassed
    01134 -  Alarm Horn (H12)
                49-10 -  No Communications - Intermittent
     
    -------------------------------------------------------------------------------
    Address 45: Inter. Monitor       Labels: 4B0-951-173.LBL
       Controller: 4B0 951 173 
       Component: Innenraumueberw.    D03
       Coding: 00001
       Shop #: WSC 00000
       VCID: E0B3A188735B
    No fault code found.
     
    -------------------------------------------------------------------------------
    Address 56: Radio       Labels: 8D0-035-1xx-56.LBL
       Controller: 8L0 035 195 H
       Component: symphony II NP2    0005 
       Coding: 00201
       Shop #: WSC 06435
       VCID: 33199EC4122D
    No fault code found.
     
    End   --------------------------------------------------------------------------------------------------
    I have noticed that the ABS & Auto trans units have no coding ?

    What I have done to try and fix the problem:

    1. Basic settings, everything checks out ok except “ERROR not available” in group 069 and also on measuring block 006
    2. Coding ABS unit to no avail, labels below if anyone can tell me what codes I should be using
    3. Tracking aligned as it was 11 degrees out
    4. Changed cracked vacuum hoses
    5. Repositioned brake sensor switch, checked wires
    6. Changed Yaw rate sensor and checked for problem with the Latitude sensor beside it and checked all wires

    The only thing I haven’t done is check behind the glove box to find the Longitude sensor, it’s an automatic so I assume it must have one ?







    All this and the problem still remains, ABS light flashing, large red (!) light flashing and 01486 - System Function Test Activated still on.

    Car drives fine and gearbox is ok as well.

    Hopefully I haven’t forgotten to mention anything but my head is spinning now.

    I’d really appreciate some help with this.

    Thanks Dave
    Last edited by drjohnson666; 10-05-2016 at 09:42 AM. Reason: Photo links didn't work first time.

  2. Likes Jack@European_Parts liked this post
  3. #2
    Benevolent Dictator Uwe's Avatar
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    Coding of all zeros is normal for that gearbox.

    ABS: Try coding of: 0019970.

    This video may also be helpful:



    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

  4. Likes Boki Ar liked this post
  5. #3
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    Hi Uwe

    I had tried performing that test drive loads of times as well in a large car park, I forgot to put that in the post. The ABS coding I calculated was 0001997 so I wasn't far off your code. I have put your code in and it worked straight away. It even did the reset test whilst I went to pick my wife up, within 10 minutes of driving normally in rush hour traffic.

    For anybody else who reads this post:

    Before I got the right coding in the ECU the lights I had on were the ABS and red (!) both constantly flashing and I could only get the traction control light to flash on for a moment.

    After the correct code was in the ABS ECU, foot on the brake pedal, ABS light on constantly and traction control light was flashing like in the video, then just go for a drive.

    Thanks for your help Uwe.

    Yours Dave

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  7. #4
    NostraJackAss Jack@European_Parts's Avatar
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    This is a perfect example as to why a used car pre purchase inspection is recommended, along with an auto-scan.
    European Parts Emporium/Performance / Immobilizer Solutions EPE
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    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
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