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Thread: Audi TT 2002 ABS control module confusion

  1. #1
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    Unhappy Audi TT 2002 ABS control module confusion

    Hi,
    I'm new to the forum and to audi ownership, but very excited to have recently bought a 2002 TT roadster. The price was great, so we expected a few repairs and were told that the steering angle sensor might be the problem explaining the ESP light being on along with the ABS and brake lights. Cleaning the wheel speed sensors and replacing the steering angle sensor has reduce the number of fault codes in the ABS from ten to three, but it would still seem that the ABS control module is defective.

    Code:
    Log-TRUTC28N221004229-07192014_new_steeringanglesensor
    Saturday,19,July,2014,23:13:23:58821
    VCDS -- Windows Based VAG/VAS Emulator
    VCDS Version: 12.12.2.0 (x64)
    Data version: 20140212
    VIN: TRUTC28N221004229
    License Plate:
    Mileage:
    Repair Order: 07192014_new_steeringanglesensor
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    Chassis Type: 8N (8N - Audi TT (1999 > 2007))
    Scan: 01 02 03 08 15 17 22 35 37 45 55 56 76 77
    VIN: TRUTC28N221004229
    -------------------------------------------------------------------------------
    Address 01: Engine
    Labels: 06A-906-032-AWP.lbl
    Part No: 8N0 906 018 AL
    Component: 1.8L R4/5VT
    G
    0004
    Coding: 07500
    Shop #: WSC 01236
    VCID: 7BFBFE516900A5C6CE5-515A
    TRUTC28N221004229
    AUZ5Z0A6200108
    2 Faults Found:
    18057 - Powertrain Data Bus
    P1649 - 35-00 - Missing Message from ABS Controller
    18010 - Power Supply Terminal 30
    P1602 - 35-10 - Voltage too Low - Intermittent
    Readiness: 0000 1000
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes
    Labels: 8N0-907-379-MK20-E.lbl
    Part No: 8N0 907 379 D
    Component: ESP
    20
    CAN V006
    Coding: 23049
    Shop #: WSC 01236
    VCID: 3D7F304937946BF6B01-4B18
    3 Faults Found:
    65535 - Internal Control Module Memory Error
    00-00 - -
    00778 - Steering Angle Sensor (G85)
    62-00 - No or Incorrect Adjustment
    00778 - Steering Angle Sensor (G85)
    49-00 - No Communications
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC
    Labels: 8N0-820-043.lbl
    Part No: 8N0 820 043 A
    Component: TT-KLIMAVOLLAUTOMAT D03
    Coding: 00140
    Shop #: WSC 01236
    VCID: 2851F11DC816DE5EF37-2592
    1 Fault Found:
    01206 - Signal for Duration of Ignition Off Time
    27-10 - Implausible Signal - Intermittent
    Page 1Log-TRUTC28N221004229-07192014_new_steeringanglesensor
    -------------------------------------------------------------------------------
    Address 15: Airbags
    Labels: 8N0-959-655.lbl
    Part No: 8N0 959 655 A
    Component: Airbag Front+Seite 5000
    Coding: 01103
    Shop #: WSC 01236
    VCID: 3E7D37453A9270EEA9B-515A
    No fault code found.
    -------------------------------------------------------------------------------
    Address 17: Instruments
    Labels: 8Nx-920-xxx-17.lbl
    Part No: 8N1 920 980
    Component: KOMBI+WEGFAHRS. M73 D14
    Coding: 02244
    Shop #: WSC 26131
    VCID: F3EB5671C1506D86165-4B32
    TRUTC28N221004229
    AUZ5Z0A6200108
    No Faults Found
    or DTCs not supported by controller
    or a communication error occurred
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks
    Labels: 8Nx-962-267.lbl
    Part No: 8N7 962 267 A
    Component: Central Lock/Alarm D06
    Coding: 15884
    Shop #: WSC 26131
    VCID: 3E7D37453A9270EEA9B-4F1E
    1 Fault Found:
    01559 - Drivers Door
    58-10 - Can't Lock - Intermittent
    -------------------------------------------------------------------------------
    Address 55: Xenon Range
    Labels: 4B0-907-357-AUT.lbl
    Part No: 4B0 907 357
    Component: LEUCHTWEITEREGLER D004
    Coding: 00009
    Shop #: WSC 01236
    VCID: E5CF38297F848336881-51B2
    No fault code found.
    -------------------------------------------------------------------------------
    Address 56: Radio
    Labels: 8E0-035-1xx-56.lbl
    Part No: 4B0 035 186 H
    Component: concert II NP2
    0007
    Coding: 04001
    Shop #: WSC 03132
    VCID: 254FF829BF04C336C81-4ECA
    No fault code found.
    End
    ---------------------------------------------------------------------
    Page 2
    So we have been looking for an 8N0 907 379 D ABS control module and have been having some trouble locating one. One salvage yard swore that an 8N0 907 379 E would work perfectly well - this one comes from the Quattro of the same vintage as my roadster.
    The Ross-Tech question I have comes from looking in the ABS Adress at information shown again here:
    Address 03: ABS Brakes
    Labels: 8N0-907-379-MK20-E.lbl
    Part No: 8N0 907 379 D
    Component: ESP
    20
    CAN V006
    Coding: 23049
    Shop #: WSC 01236
    VCID: 3D7F304937946BF6B01-4B18
    3 Faults Found:

    The second info line refers to "Labels: 8N0-907-379-MK20-E.lbl".
    What are "labels"? In this label I see Mk-20 - E!!! So are the E and the D interchangeable or can we expect even more fault codes with a Quattro ABS module?

    Second question - will we be able to check for the clearing of fault codes without totally reconnecting the brake lines and bleeding the brakes, or is it necessary to do all that first? We only have enough replacement brake fluid around to replace it one time at present - just hoping to do everything at once.
    Last edited by Uwe; 08-02-2014 at 06:22 PM. Reason: Fixed CODE tags

  2. #2
    Benevolent Dictator Uwe's Avatar
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    What are "labels"?
    See this page.

    I see Mk-20 - E!!! So are the E and the D interchangeable
    Mk20 ABS control modules were around for many years. I think they were introduced in 1996 and were still around in some applications a decade later. But they are not all the same; i.e. they can't all be described by the same label file. Hence there's a plain-jane MK20 label file and an MK20-E label file. This does not imply that 8N0-907-379-D and 8N0-907-379-E are interchangeable. I don't know off the top of my head whether they are or aren't. One would have to check an authoritative source such as the dealer's ETKA system or PL24 to know for sure.

    -Uwe-

  3. #3
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    Quote Originally Posted by Uwe View Post
    See this page.


    Mk20 ABS control modules were around for many years. I think they were introduced in 1996 and were still around in some applications a decade later. But they are not all the same; i.e. they can't all be described by the same label file. Hence there's a plain-jane MK20 label file and an MK20-E label file. This does not imply that 8N0-907-379-D and 8N0-907-379-E are interchangeable. I don't know off the top of my head whether they are or aren't. One would have to check an authoritative source such as the dealer's ETKA system or PL24 to know for sure.

    -Uwe-
    I'm super-impressed at the speed of your response - thank you so much. I will check out the PL24 once I have subscribed to it. (something through Ross-Tech?) Meanwhile, dealers do show 2 different new modules for AWD and FWD, so OK, no assumptions should be made.

    Thx again,
    Anne

  4. #4
    Benevolent Dictator Uwe's Avatar
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    Ross-Tech is not associated with PL24, we simply make people aware that it's available as a resource.

    -Uwe-

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    NostraJackAss Jack@European_Parts's Avatar
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    Please try a default/recode and reboot of the entire system for 0x03 ABS.
    Then attempt to recalibrate of the steering angle sensor and that its baseline mechanically is correct for centerline.

    E is for Quattro.
    D is for FWD only.

    Which means one from a Golf or Jetta will fit..........and the car wont care.
    Try above first.........It costs nothing but some time.
    Last edited by Jack@European_Parts; 08-03-2014 at 08:24 PM.

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