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Thread: Haldex not working 2003 audi tt

  1. #1
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    Haldex not working 2003 audi tt

    here is the scan
    Wednesday,25,September,2019,14:15:11:14605
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 19.6.1.0 (x64) HEX-V2 CB: 0.4508.4
    Data version: 20190529 DS308.0
    www.Ross-Tech.com




    Address 22: AWD Labels: 02D-900-554.LBL
    Control Module Part Number: 02D 900 554 C
    Component and/or Version: HALDEX LSC ECC 0010
    Software Coding:
    Work Shop Code:
    VCID: 2019E015D3D073D7EA9-4B00
    3 Faults Found:

    00532 - Supply Voltage B+
    07-00 - Signal too Low
    01155 - Clutch
    04-10 - Mechanical Malfunction - Intermittent
    01316 - ABS Control Module
    79-10 - Please Check Fault Codes - Intermittent


    vin TRUWT28N031******

    the connector was clean and dry.
    voltage at teh connector
    2-3 11V
    the grounding strap to the housing of the Haldex clutch good
    infinite resistance from pin 2 to the grounding strap
    2-4 0V with the parking brake on or off
    2-7 600 ohms
    2-8 600 ohms
    7-8 60 ohms

    Any suggestions?

  2. #2
    Verified VCDS User PetrolDave's Avatar
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    That's an extract from an Auto-Scan, to help we'll ned to see the FULL UNEDITED Auto-Scan.

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  4. #3
    Ross-Tech Employee DrPeter's Avatar
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    Hello,

    I would have a look at the Measuring Value Block group [002], field (1) is current the Voltage supply value as seen by the controller. This value needs to reflect the current battery voltage (+/-1.0V) of the vehicle, if the voltage is correct, it sounds like there could be a concern with the J492-All Wheel Drive Control Module.

    Also we have a Ross-Tech wiki page for the 00532 - Supply Voltage B+: Signal too Low


    Hope this helps,

    drpeter

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  6. #4
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    here is the full scan

    Code:
    Friday,27,September,2019,08:42:46:14605
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 19.6.1.0 (x64)  HEX-V2 CB: 0.4508.4
    Data version: 20190529 DS308.0
    www.Ross-Tech.com
    
    
    VIN: TRUWT28N031000517   License Plate: 
    Mileage: 118680km-73744mi   Repair Order: 
    
    
    Chassis Type: 8N (8N - Audi TT (1999 > 2007))
    Scan: 01 02 03 08 15 17 22 35 37 45 55 56 76 77
     
    VIN: TRUWT28N031000517   Mileage: 118680km-73744miles
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: None
       Part No: 8N0 906 018 BB
       Component: 1.8L R4/5VT     G   0002  
       Coding: 07710
       Shop #: WSC 01236  
       VCID: 72BDDA5D4DBCB147CCD-513C
       TRUWT28N031000517     AUZ5Z0B6125113
    
    2 Faults Found:
    17840 - Secondary Air Injection Solenoid Valve (N112) 
                P1432 - 35-10 - Open Circuit - Intermittent
    18010 - Power Supply Terminal 30 
                P1602 - 35-10 - Voltage too Low - Intermittent
    Readiness: 0110 1101
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 8N0-907-379-MK60-A.lbl
       Part No: 8N0 907 379 H
       Component: ESP ALLRAD MK60     0101  
       Coding: 0022544
       Shop #: WSC 01236 785 00200
       VCID: 41DF45913D9A5ADF857-513C
    
    3 Faults Found:
    01314 - Engine Control Module 
                013 - Check DTC Memory - Intermittent
    00290 - ABS Wheel Speed Sensor; Rear Left (G46) 
                012 - Electrical Fault in Circuit
    01324 - Control Module for All Wheel Drive (J492) 
                004 - No Signal/Communication
    
    -------------------------------------------------------------------------------
    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: 2809F835BBE08B97A29-2580
    
    1 Fault Found:
    00792 - A/C Pressure Switch (F129) 
                31-00 - Open or Short to Ground
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 8N0-959-655.lbl
       Part No: 8N0 959 655 B
       Component: Airbag Front+Seite 6000  
       Coding: 01103
       Shop #: WSC 01236  
       VCID: 3FDB43694E6E2C2FF33-513C
    
    2 Faults Found:
    01218 - Side Airbag Igniter; Passenger Side (N200) 
                32-10 - Resistance Too High - Intermittent
    00532 - Supply Voltage B+ 
                07-10 - Signal too Low - Intermittent
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 8Nx-920-xxx-17.lbl
       Part No: 8N1 920 930 S
       Component: KOMBI+WEGFAHRS. M73 D04  
       Coding: 07344
       Shop #: WSC 00000  
       VCID: 41DF4591389A5ADF857-4B00
       TRUWT28N031000517     AUZ5Z0B6125113
    
    4 Faults Found:
    01039 - Coolant Temperature Sensor (G2) 
                30-00 - Open or Short to Plus
    00668 - Supply Voltage Terminal 30 
                53-10 - Supply Voltage Too Low - Intermittent
    01304 - Radio 
                49-00 - No Communications
    01305 - Databus for Infotainment 
                37-00 - Faulty
    
    -------------------------------------------------------------------------------
    Address 22: AWD        Labels: 02D-900-554.lbl
       Part No: 02D 900 554 C
       Component: HALDEX LSC  ECC     0010  
       VCID: 2019E015D3D073D7EA9-4B00
    
    3 Faults Found:
    00532 - Supply Voltage B+ 
                07-00 - Signal too Low
    01155 - Clutch 
                04-10 - Mechanical Malfunction - Intermittent
    01316 - ABS Control Module 
                79-10 - Please Check Fault Codes - Intermittent
    
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks        Labels:. 8Nx-962-267.lbl
       Part No: 8N8 962 267 F
       Component: Central Lock/Alarm  D08  
       Coding: 15884
       Shop #: WSC 01236  
       VCID: 44D14C8527884FF7AE1-4EC8
    
    3 Faults Found:
    01371 - Alarm triggered by Door Contact Switch; Driver's Side 
                35-00 - -
    01374 - Alarm triggered by Terminal 15 
                35-00 - -
    00668 - Supply Voltage Terminal 30 
                07-10 - Signal too Low - Intermittent
    
    -------------------------------------------------------------------------------
    Address 55: Headlight Range        Labels: 4B0-907-357-AUT.lbl
       Part No: 4B0 907 357 
       Component: LEUCHTWEITEREGLER  D004  
       Coding: 00010
       Shop #: WSC 01236  
       VCID: 6597B1018C7256FF59F-5184
    
    No fault code found.
    
    End----(Elapsed Time: 02:53, VBatt start/end: 11.4V/11.3V. VIgn 11.3V)-----
    [COLOR="#0000FF"]I do have my work cut out for me!
    I have ordered the SAIR selenoid and a new connector for the wheel sensor.

    The A/C and the door and the air bag I have not started to look at yet.
    Last edited by Uwe; 09-27-2019 at 01:45 PM. Reason: CODE tags

  7. #5
    NostraJackAss Jack@European_Parts's Avatar
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    Twisted pair for W-CAN might be dropped out from ABS to AWD controller due to gateway in cluster being FUBAR.

    01305 - Databus for Infotainment
    37-00 - Faulty
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  8. #6
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    01305 - Databus for Infotainment
    I suspect that is due to an aftermarket radio being installed.

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  10. #7
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    the voltage at battery is 12.4 (on a trickle charger)
    Measuring Value Block group [002], field (1) shows 12.3
    measuring at connector it is 12.3 pin 2-3 on the harness side.

  11. #8
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    I also did an oil and filter change and the oil came out looking clean and the filter was not dirty.

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