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  1. #1
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    Horn and MFSW buttons not working

    Wondering if there is anybody out there that can understand this weird problem on my 2007 Audi S3...

    My horn and buttons on the steering wheel do not work at all, nor do they light up. It seems there is no power to them.
    I had it in at Audi today for a service and mentioned it to them, they took it apart and made sure everything was connected properly which it was. Now they want 2 hours labour just to investigate the problem!

    On VCDS I remember them saying something like no operating power to the steering control unit.

    Background info...
    I replaced the MFSW with a FBMFSW about 2 months ago. Everything was plug and play and worked fine. Around 2 weeks ago, my horn stopped working but everything else still functioned. Now, everything has completely packed up.

    Any ideas?

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  3. #2
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    checked fuses? have you scanned with vcds since the failure?
    '02 TDi 130 Sport: Mods to date: BXP 160 conversion, EGR delete, Decat, Helix SMF fast road clutch, 312mm front rotors, full DIS , CC, Xenons.
    VCDS fully registered and happy to help.
    *Need a Spare Key or Remote? SKC retrieval? Clock/ECU swap or milage correction? I am fully insured to work on your vehicle! Offering a good deal and quality service to ASN members Nationwide!*

  4. #3
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    I dont have VCDS, however when Audi scanned it they said the errors were not helpful!

    Not checked fuses, I dont think there is a particular one for horn and steering controls....

  5. #4
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    Ok I have the error codes...

    01426 Control Unit in Steering Wheel - E221
    No Signal/No Communication

    00588 Airbag Igniter Driver Side - N95
    Upper Limit Reached

    Any ideas??

  6. #5
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    Any thoughts guys? Audi are charging me £220 just to look at the issue on Friday!

  7. #6
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    where did you get the codes from? what module were they in? vcds would tell you a fair bit, audi dont get to see the reason things went bad, they just generally hook u up to the computer and charge you to fix it...

    worth plugging vcds in before going there, who plugged you in before?
    '02 TDi 130 Sport: Mods to date: BXP 160 conversion, EGR delete, Decat, Helix SMF fast road clutch, 312mm front rotors, full DIS , CC, Xenons.
    VCDS fully registered and happy to help.
    *Need a Spare Key or Remote? SKC retrieval? Clock/ECU swap or milage correction? I am fully insured to work on your vehicle! Offering a good deal and quality service to ASN members Nationwide!*

  8. #7
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    a quick read suggests likely a wiring issue to the steering module, the airbag light could be from the faulty slip ring. wiring or blown fuses, retrace your work, check connectors to steering wheel. is there any module in the wheel itself?
    '02 TDi 130 Sport: Mods to date: BXP 160 conversion, EGR delete, Decat, Helix SMF fast road clutch, 312mm front rotors, full DIS , CC, Xenons.
    VCDS fully registered and happy to help.
    *Need a Spare Key or Remote? SKC retrieval? Clock/ECU swap or milage correction? I am fully insured to work on your vehicle! Offering a good deal and quality service to ASN members Nationwide!*

  9. #8
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    01426 - Controls in Steering Wheel (E221): No Signal/Communication

    Possible Symptoms

    • Multi-Function-Display (MFD) can not be operated
    Possible Causes

    • Steering Column Control Module Supply Voltage insufficient
    • Fuse(s) faulty
    • Wiring/Connectors from/to Steering Wheel Controls faulty
    Possible Solutions

    • Check Steering Column Control Module Supply Voltage
    • Check Fuse(s)
    • Check Wiring/Connectors from/to Steering Wheel Controls
    Special Notes

    • When found in VW Golf/Jetta (1K): Steering Column Control Module
      • Check Fuse(s) SB2 (E-Box Low) or SB16 (E-Box High) in the Engine Compartment Fuse Box.
      • Check Connector T5k on the Steering Wheel Controls


    00588 - Airbag Igniter; Driver Side (N95)

    00588 - Airbag Igniter; Driver Side (N95): Resistance too Low

    00588 - Airbag Igniter; Driver Side (N95): Resistance too High

    00588 - Airbag Igniter; Driver Side (N95): Upper Limit Exceeded

    00588 - Airbag Igniter; Driver Side (N95): Lower Limit Exceeded

    00588 - Airbag Igniter; Driver side (N95): Short to positive

    00588 - Airbag Igniter; Driver side (N95): Short to ground

    Possible Symptoms

    • Airbag Warning Light active
    Possible Causes

    • Wiring from/to Airbag Igniter Driver Side (N95) faulty
    • Coil Spring with Slip Ring (F138) faulty
    • Airbag Igniter Driver Side (N95) faulty
    Possible Solutions

    • Check Wiring from/to Airbag Igniter Driver Side (N95)
    • Check Coil Spring with Slip Ring (F138)
    • Check Airbag Igniter Driver Side (N95)
    Special Notes

    • When "Short to positive" or "Short to ground" is found, DO NOT CLEAR THE DTC. This can cause the airbag to deploy. See repair manual for more information.
    '02 TDi 130 Sport: Mods to date: BXP 160 conversion, EGR delete, Decat, Helix SMF fast road clutch, 312mm front rotors, full DIS , CC, Xenons.
    VCDS fully registered and happy to help.
    *Need a Spare Key or Remote? SKC retrieval? Clock/ECU swap or milage correction? I am fully insured to work on your vehicle! Offering a good deal and quality service to ASN members Nationwide!*

  10. #9
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    As its now clear the FBMFSW was working for a while before failing, im going to say steering wheel module failure or blown fuse. VCDS will narrow down to this if its the case.
    '02 TDi 130 Sport: Mods to date: BXP 160 conversion, EGR delete, Decat, Helix SMF fast road clutch, 312mm front rotors, full DIS , CC, Xenons.
    VCDS fully registered and happy to help.
    *Need a Spare Key or Remote? SKC retrieval? Clock/ECU swap or milage correction? I am fully insured to work on your vehicle! Offering a good deal and quality service to ASN members Nationwide!*

  11. #10
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    I would say either you have damaged the slip ring, damaged the wiring inside wheel or not connected it as well as you possibly think as the logs seem to suggest its getting comms with the steering module, just nothing after the slip ring.

    £220 seems steep just to look at it, but I suspect parts maybe needed if airbag looms ok.

    If not sorted, give us a shout.

    OEM RETROFITS - CRUISE CONTROL - SAT NAV - BLUETOOTH - AMI - HEADLIGHT SYSTEMS

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

  12. #11
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    Thanks for the info...

    Audi are saying they 'think' its the slip ring and want permission from me to change it. It's quite an expensive job...

    Not sure what to do, don't really want to do it myself because it probably needs calibrating and coding!

  13. #12
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    its not that expensive to find a part on ebay, and coding it is easy as is calibration if it needs it.
    '02 TDi 130 Sport: Mods to date: BXP 160 conversion, EGR delete, Decat, Helix SMF fast road clutch, 312mm front rotors, full DIS , CC, Xenons.
    VCDS fully registered and happy to help.
    *Need a Spare Key or Remote? SKC retrieval? Clock/ECU swap or milage correction? I am fully insured to work on your vehicle! Offering a good deal and quality service to ASN members Nationwide!*

  14. #13
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    Quote Originally Posted by realstig View Post
    Thanks for the info...

    Audi are saying they 'think' its the slip ring and want permission from me to change it. It's quite an expensive job...

    Not sure what to do, don't really want to do it myself because it probably needs calibrating and coding!
    Well we have stock & we can fix in Manchester if interested & more than likely for less than audi

    OEM RETROFITS - CRUISE CONTROL - SAT NAV - BLUETOOTH - AMI - HEADLIGHT SYSTEMS

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

 

 

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