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ABS/ESP and Braking system fault

Discussion in 'A3/S3 Forum (8L Chassis)' started by KENCUTH, Oct 9, 2013.

  1. KENCUTH
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    KENCUTH New Member

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    [Oct 9, 2013]
    Hello, This is my second post and not the best but here it goes.

    I changed my alloys over from 17s - 18s about 2 months ago and have had no issues until 2 weeks ago when my ESP ABS and braking system fault signal come on when i turned the car over. This came on when i was parked up, then i pulled away to hear three dings, which would be part of the fault.
    When driving down the road all these signals dissapeared (to my delight). I then parked up again, to then return turn over the engine for the warning lights t appear again. I drove for roughly 1 mile for them to disappear again. After a few days of this occurring, the warning lights have now stayed on permanently. I have tried all different threads to find out the causes to this issue. Could it have been my wheels??
    Where the warning lights kept on coming on and going i could only imagine that it was a sensor, but when searching the forums there was nothing concrete about this other then the fuse box on top of the battery which is all intact.

    I hooked up the motor to VCDS lite to hopefully shed some light, with the below results.

    VCDS-Lite Version: Release 1.2
    Wednesday, 09 October 2013, 18:23:11:0


    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: Redir Fail!
    Controller: 8L0 906 018 N
    Component: 1.8L R4/5VT 0002
    Coding: 05710
    Shop #: WSC 06435
    VCID: 3A07B1EB3547
    1 Fault Found:
    18057 - Powertrain Data Bus: Missing Message from ABS Controller
    P1649 - 35-10 - - - Intermittent
    Readiness: 0000 0000

    -------------------------------------------------------------------------------
    Address 08: Auto HVAC Labels: Redir Fail!
    Controller: 8L0 820 043 M
    Component: A3 KLIMAVOLL
    VCID: 321799CBED37
    Note: Excessive Comm Errors

    -------------------------------------------------------------------------------
    Address 15: Airbags Labels: 8L0-959-655-AI8.LBL
    Controller: 8L0 959 655 J
    Component: Airbag Front+Seite 3008
    Coding: 01104
    Shop #: WSC 06435
    VCID: 45FDD2174CB9
    No fault code found.

    -------------------------------------------------------------------------------
    Address 17: Instruments Labels: 8L0-920-xxx-17.LBL
    Controller: 8L0 920 980 B
    Component: AB-KOMBIINSTR. VDO D11
    Coding: 01444
    Shop #: WSC 00000
    VCID: 321799CBED37
    ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ AUZ7Z0Y1488686
    No fault code found.

    -------------------------------------------------------------------------------
    Address 22: AWD Labels: 02D-900-554.LBL
    Controller: 02D 900 554 B
    Component: HALDEX LSC ECC 0006
    VCID: 1F31607F8EA5
    1 Fault Found:
    01316 - ABS Control Module
    49-00 - No Communications

    -------------------------------------------------------------------------------
    Address 35: Centr. Locks Labels: 8D0-862-257.LBL
    Controller: 8L0 862 257 P
    Component: CV-Pump, Alarm, RC D13
    Coding: 15178
    Shop #: WSC 06435
    VCID: 42F7C90B5D97
    7 Faults Found:
    01371 - Alarm triggered by Door Contact Switch; Driver's Side
    35-00 - -
    01372 - Alarm triggered by Door Contact Switch; Rear Passenger Side
    35-00 - -
    01374 - Alarm triggered by Terminal 15
    35-00 - -
    01370 - Alarm triggered by Interior Monitoring
    35-00 - -
    00991 - Interior Lights
    28-00 - Short to Plus
    00956 - Key 2
    09-00 - Adaptation Limit Surpassed
    01134 - Alarm Horn (H12)
    49-00 - No Communications

    -------------------------------------------------------------------------------
    Address 45: Inter. Monitor Labels: 4B0-951-173.LBL
    Controller: 4B0 951 173
    Component: Innenraumueberw. D03
    Coding: 00001
    Shop #: WSC 00000
    VCID: E0B3A383735B
    No fault code found.

    -------------------------------------------------------------------------------
    Address 55: Xenon Range Labels: 4B0-907-357-AUT.LBL
    Controller: 4B0 907 357
    Component: LEUCHTWEITEREGLER D004
    Coding: 00002
    Shop #: WSC 06435
    VCID: E5BDB2976C79
    No fault code found.

    End --------------------------------------------------------------------------------------------------


    Any ideas would be appreciated, as im hoping this isn't a new ABS pump or Haldex.
    #1
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  3. sandwich1987
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    sandwich1987 Member

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    [Oct 9, 2013]
    I had something similar to this and it turned out to be a wire that had frayed through in the bundle running to the abs wiring plug, I suggest you get a multimeter and wiring diagrams and go from there. Do you have full version vcds? if you go into the engine module and measuring blocks, go to block 125 this will tell you if the ecu can communicate with the abs module.
    #2
  4. @udi A3
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    @udi A3 Site Sponsor Site Sponsor VCDS Map User

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    [Oct 9, 2013]
    Isnt the abs ecu usually the culprit here?
    #3
  5. sandwich1987
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    sandwich1987 Member

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    [Oct 9, 2013]
    it might well be but for the effort of checking continuity in the wiring, will save spending money on a part that's not needed I found this out to my cost twice lol
    #4
  6. KENCUTH
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    KENCUTH New Member

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    [Oct 9, 2013]
    Hello thanks for the replys, i will check the abs wiring plug and get the multimeter out tomoz.

    I do have VCDS lite full version and did as you said and ran measuring blocks 125 in the engine module.

    Don't know whether it talked to it, but in the second box along i had ABS 1 show up??

    [​IMG]
    #5
  7. sandwich1987
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    sandwich1987 Member

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    [Oct 9, 2013]
    if I remember right that means that the ecu can see the abs controller just cant talk to it if you know what I mean...I piggybacked a long length of wire from the diagnosis wire also called the k-line its the grey/white wire in the diagnostic port connector to the same grey/white wire in the abs connector block, the fact that your abs module doesn't even show up on your auto scan would lead me to think its this wire that might be the issue.

    is it an s3 you have? if so what year and ill see if my diagram is correct.
    #6
  8. KENCUTH
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    KENCUTH New Member

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    [Oct 9, 2013]
    Right i see what you mean. So i need to find/follow the grey and white wire from the abs module see if all is intact. This is what i was hopeing for, as it takes the presence away from the abs pump/module being the culprit.

    I have a S3 2000.

    Thanks
    #7
  9. sandwich1987
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    sandwich1987 Member

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    [Oct 9, 2013]
    what engine code is it?
    #8
  10. CMcKenzie
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    CMcKenzie It's supposed to do that..

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    [Oct 9, 2013]
    It'll be APY
    #9
  11. sandwich1987
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    sandwich1987 Member

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    [Oct 9, 2013]
    You will have trouble tracing it as it goes up into the back of the speedo clock and then to the abs sensor, so I would try either by-passing the clock and taking a wire right from the diagnostic port to the abs plug, its a pain in the arse I had to splice into it so make sure your happy you have the correct wires lol
    #10
  12. KENCUTH
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    KENCUTH New Member

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    [Oct 10, 2013]
    Yes my engine is an APY. Sounds really difficult. Was thinking if the colour is known i could trace the wire the opposite way?
    #11

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