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Thread: Audi TT MK1 - 8N - problem with not being able to switch off alarm or use remote key

  1. #1
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    Audi TT MK1 - 8N - problem with not being able to switch off alarm or use remote key

    Hi all,

    I've been using VCDS for years and don't know why I haven't signed up earlier but this one has got me stumped. I think it is all related to the rear window in the hood failing and allowing A LOT of water in. This resulted in the key stopping working (but the car driving) and then eventually a K line fault. I traced this to the module below the subwoofer which was submerged in water. Mircaculously, after drying this out and cleaning up the corrosion it appears to be working and the K line fault has gone. This was preventing the car conencting to VCDS at all.

    However, I cannot work out the fault with the remote. I only have the one key and I cannot get it to resync with the car at all. I do wonder if it is a CCM fault and that has got wet? I have seen a few threads about de-soldering the unit that controls the locking and putting a new one in from a donor board and then you don't need to code the CCM?

    Here is a log from the other day:

    Code:
    Friday,28,December,2018,15:05:26:56783
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 18.9.0.1 (x64)
    Data version: 20180927 DS296.0
    www.Ross-Tech.com
    
    
    Mileage: 171290km-106434mi   Repair Order: 
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 8N - Audi TT (1999 > 2007)
    Scan: 01 02 03 08 15 17 22 35 37 45 55 56 76 77
     
       Mileage: 171290km-106434miles
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: 06A-906-032-APX.clb
       Part No: 8L0 906 018 M
       Component: 1.8L R4/5VT         0002  
       Coding: 05710
       Shop #: WSC 01236  
       VCID: 3977FD9723845D82D1-5178
    
    3 Faults Found:
    17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28) 
                P1340 - 35-10 - Incor. Correlation - Intermittent
    16885 - Vehicle Speed Sensor 
                P0501 - 35-10 - Implausible Signal - Intermittent
    18010 - Power Supply Terminal 30 
                P1602 - 35-10 - Voltage too Low - Intermittent
    Readiness: 0000 0000
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 8N0-907-379-MK20-E.clb
       Part No: 8N0 907 379 E
       Component: ESP     20    CAN  V004   
       Coding: 18446
       Shop #: WSC 01236  
       VCID: 3E7DEE8B3AAA7ABAE4-4B18
    
    4 Faults Found:
    00778 - Steering Angle Sensor (G85) 
                62-00 - No or Incorrect Adjustment
    00778 - Steering Angle Sensor (G85) 
                27-10 - Implausible Signal - Intermittent
    00778 - Steering Angle Sensor (G85) 
                49-10 - No Communications - Intermittent
    00778 - Steering Angle Sensor (G85) 
                37-10 - Faulty - Intermittent
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 8N0-820-043.lbl
       Part No: 8N0 820 043 A
       Component: TT-KLIMAVOLLAUTOMAT D03  
       Coding: 00041
       Shop #: WSC 01236  
       VCID: 285128D3C82ED40ABE-258C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 8N8-909-601.lbl
       Part No: 8N8 909 601 
       Component: Airbag Front+Seite 1005  
       Coding: 10102
       Shop #: WSC 01236  
       VCID: 77F33BAF55108BF2E7-513C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 8Nx-920-xxx-17.lbl
       Part No: 8N2 920 930 A
       Component: KOMBI+WEGFAHRS. M73 D08  
       Coding: 05444
       Shop #: WSC 00052  
       VCID: 3061C0B3F0FE9CCA66-4B18
    
       Subsystem 1 - Part No: Ident
       Component: Nr. Wegfahrs.:AUZ5Z0Y4303242  
       Ident.-Nr. Wegfahrs.:AUZ5Z0Y4303242
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 22: AWD        Labels: 02D-900-554.lbl
       Part No: 02D 900 554 B
       Component: HALDEX LSC  ECC     0006  
       VCID: 1F43330F9D6013B2CF-4B18
    
    1 Fault Found:
    00526 - Brake Light Switch (F) 
                27-10 - Implausible Signal - Intermittent
    
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks        Labels:. 8Nx-962-267.lbl
       Part No: 8N7 962 267 B
       Component: Central Lock/Alarm  D04  
       Coding: 06874
       Shop #: WSC 00501  
       VCID: 3F83938F3DA073B2EF-4EE6
    
    9 Faults Found:
    01366 - Opened Due to Crash Signal 
                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 -  - 
    01616 - Signal Wire to Interior Monitor 
                36-10 - Open Circuit - Intermittent
    01570 - Turn-Off Delay; Terminal 15 
                29-10 - Short to Ground - Intermittent
    01559 - Drivers Door 
                58-00 - Can't Lock
    01134 - Alarm Horn (H12) 
                49-00 - No Communications
    01617 - Please Check DTC Memory of Interior Monitoring 
                35-10 -  -  - Intermittent
    
    -------------------------------------------------------------------------------
    Address 45: Inter. Monitor        Labels: 8E0-951-177.lbl
       Part No: 8N7 951 177 
       Component: Innenraumueberw.    D14  
       Coding: 00001
       Shop #: WSC 00000  
       VCID: 7BFB279F6938AF9283-5178
    
    3 Faults Found:
    01463 - Alarm triggered by Sensor for anti-theft alarm System 
                43-00 - Closed
    01463 - Alarm triggered by Sensor for anti-theft alarm System 
                81-00 - Open
    01462 - Anti-theft alarm ultra sonic Sensor (G209) 
                27-10 - Implausible Signal - Intermittent
    
    -------------------------------------------------------------------------------
    Address 56: Radio        Labels: 
       VCID: 55AF5127ACDC99E2D5-FFFE
    
    
    End-------------------------(Elapsed Time: 02:41)--------------------------
    Any help greatly appreciated.

    James
    Last edited by Uwe; 01-02-2019 at 09:28 AM. Reason: CODE tags

  2. #2
    Benevolent Dictator Uwe's Avatar
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    Start by clearing the faults in the 35 and 45. Then do another scan to see what comes back.

    I would also suggest a physical inspection of the CCM.

    -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.

  3. #3
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    OK I cleared both and then re-ran the scan:

    Code:
    Saturday,05,January,2019,13:23:01:56783
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 18.9.0.1 (x64)
    Data version: 20180927 DS296.0
    www.Ross-Tech.com
    
    
    Mileage:    Repair Order: 1
    
    
    Chassis Type: 8N - Audi TT (1999 > 2007)
    Scan: 01 02 03 08 15 17 22 35 37 45 55 56 76 77
     
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: 06A-906-032-APX.clb
       Part No: 8L0 906 018 M
       Component: 1.8L R4/5VT         0002  
       Coding: 05710
       Shop #: WSC 01236  
       VCID: 3977FD9723845D82D1-5178
    
    2 Faults Found:
    17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28) 
                P1340 - 35-10 - Incor. Correlation - Intermittent
    18010 - Power Supply Terminal 30 
                P1602 - 35-00 - Voltage too Low
    Readiness: 0000 0000
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 8N0-907-379-MK20-E.clb
       Part No: 8N0 907 379 E
       Component: ESP     20    CAN  V004   
       Coding: 18446
       Shop #: WSC 01236  
       VCID: 3E7DEE8B3AAA7ABAE4-4B18
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 8N0-820-043.lbl
       Part No: 8N0 820 043 A
       Component: TT-KLIMAVOLLAUTOMAT D03  
       Coding: 00041
       Shop #: WSC 01236  
       VCID: 285128D3C82ED40ABE-258C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 8N8-909-601.lbl
       Part No: 8N8 909 601 
       Component: Airbag Front+Seite 1005  
       Coding: 10102
       Shop #: WSC 01236  
       VCID: 77F33BAF55108BF2E7-5178
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 8Nx-920-xxx-17.lbl
       Part No: 8N2 920 930 A
       Component: KOMBI+WEGFAHRS. M73 D08  
       Coding: 05444
       Shop #: WSC 00052  
       VCID: 3061C0B3F0FE9CCA66-FFFE
    
       Subsystem 1 - Part No: Ident
       Component: Nr. Wegfahrs.:AUZ5Z0Y4303242  
       Ident.-Nr. Wegfahrs.:AUZ5Z0Y4303242
    
    
    -------------------------------------------------------------------------------
    Address 22: AWD        Labels: 02D-900-554.lbl
       Part No: 02D 900 554 B
       Component: HALDEX LSC  ECC     0006  
       VCID: 1F43330F9D6013B2CF-4B18
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks        Labels:. 8Nx-962-267.lbl
       Part No: 8N7 962 267 B
       Component: Central Lock/Alarm  D04  
       Coding: 06874
       Shop #: WSC 00501  
       VCID: 3F83938F3DA073B2EF-4F02
    
    1 Fault Found:
    01134 - Alarm Horn (H12) 
                49-00 - No Communications
    
    -------------------------------------------------------------------------------
    Address 45: Inter. Monitor        Labels: 8E0-951-177.lbl
       Part No: 8N7 951 177 
       Component: Innenraumueberw.    D14  
       Coding: 00001
       Shop #: WSC 00000  
       VCID: 7BFB279F6938AF9283-5178
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio        Labels: 8D0-035-1xx-56.lbl
       Part No: 4B0 035 186 D
       VCID: 214735F7AB142542F9-4B18
    
    No Faults Found
      or DTCs not supported by controller
      or a communication error occurred
    
    End-------------------------(Elapsed Time: 04:00)--------------------------
    The alarm horn has simply been unplugged hence that code, but it was disconnected prior to this problem without issue.

    I also took the CCM out and there was some minor corrosion to the pins/plugs but nothing major and nothing on the board. I cleaned them up and back in and still nothing from the key.
    Last edited by Uwe; 01-05-2019 at 12:05 PM. Reason: CODE tags

  4. #4
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    A check on 35:


    Address 35: Centr. Locks Labels: 8Nx-962-267.lbl
    Control Module Part Number: 8N7 962 267 B
    Component and/or Version: Central Lock/Alarm D04
    Software Coding: 06874
    Work Shop Code: WSC 00501
    VCID: 3F83938F3DA073B2EF-4EE6
    4 Faults Found:

    01374 - Alarm triggered by Terminal 15
    35-00 - -
    01559 - Drivers Door
    58-10 - Can't Lock - Intermittent
    01559 - Drivers Door
    60-10 - Won't Safe - Intermittent
    01134 - Alarm Horn (H12)
    49-00 - No Communications

    Also on the advanced measuring values the comfort operation status is "not oper."

  5. #5
    Verified VCDS User PetrolDave's Avatar
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    Quote Originally Posted by JimyFloyd View Post
    Address 35: Centr. Locks Labels: 8Nx-962-267.lbl
    Control Module Part Number: 8N7 962 267 B
    Component and/or Version: Central Lock/Alarm D04
    Software Coding: 06874
    Work Shop Code: WSC 00501
    VCID: 3F83938F3DA073B2EF-4EE6
    4 Faults Found:

    01374 - Alarm triggered by Terminal 15
    35-00 - -
    01559 - Drivers Door
    58-10 - Can't Lock - Intermittent
    01559 - Drivers Door
    60-10 - Won't Safe - Intermittent

    01134 - Alarm Horn (H12)
    49-00 - No Communications
    If the drivers door lock can't lock or won't safe then the alarm can't be enabled.

    Check the wiring to the drivers door lock, and if all seems OK then it's not uncommon for the microswitch in the lock to go out of adjustment - the Audi "fix" is to replace the complete lock, but this often isn't necessary.

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  7. #6
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    OK so the microswitch on the drivers side has had it - literally nothing left to push down on. The switch itself works and I can replace that once I get the part.

    I've cut the old one off, but I am still getting the alarm going off if I try to start the car - I'm not convinced a new switch is going to resolve that problem?

    James

  8. #7
    Verified VCDS User PetrolDave's Avatar
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    Quote Originally Posted by JimyFloyd View Post
    I've cut the old one off, but I am still getting the alarm going off if I try to start the car - I'm not convinced a new switch is going to resolve that problem?
    If the alarm still thinks the door is locked and you try to start the car then it thinks that someone is trying to steal the car - wait and see once the new microswitch is fitted...

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  10. #8
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    The problem being the remote doesn't work so I can't switch the alarm off...?

  11. #9
    Verified VCDS User PetrolDave's Avatar
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    Quote Originally Posted by JimyFloyd View Post
    The problem being the remote doesn't work so I can't switch the alarm off...?
    Once the microswitch is replaced you can turn the alarm off with the key in the drivers door - you don't only have to use the remote.

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  13. #10
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    Quote Originally Posted by PetrolDave View Post
    Once the microswitch is replaced you can turn the alarm off with the key in the drivers door - you don't only have to use the remote.
    OK so yesterday replaced the microswitch (I've been away!) and all seemed OK.

    Fast forward to today, and the alarm is going off again and I just can't understand why. The alarm faults are back after this latest incident saying the alarm has been triggered by the Driver's door contact switch, the hood switch and then interior monitor is an Open circuit.

    I disconnect and reconnect the battery and it works fine...???

    Any ideas?

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