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A4 Cab b6 alarm horn short to ground.

Discussion in 'VCDS (formerly VAG-COM) forum' started by Cabbyfan, May 24, 2013.

  1. Cabbyfan
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    Cabbyfan Member

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    [May 24, 2013]
    Hi,

    had the dreaded alarm siren failure by corroded batteries etc. Fitted a new second hand unit today and still hazards flash but no sound. Scanned with vcds lite and get...

    01134 alarm horn h12 29.00 short to ground.

    soon as I clear it then it returns.

    Im not actually sure it's a fault of if the rechargeable cells inside have to charge up first before I will hear any sound. Does anyone know ?

    Many thanks.
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  3. NHN
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    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    [May 24, 2013]
    Mine worked straight of the bat, so you sure its not a faulty unit again, definitely new unit as second hand & new in same sentence seems contradictive :p
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  4. Cabbyfan
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    Cabbyfan Member

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    [May 24, 2013]
    Thanks for the quick reply. It was an ebay job, stated as tested and working but hard to tell. It was listed as for a TT but pared code is identical to the one I removed. I'm wondering if it does need charging up from the car first though.
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  5. NHN
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    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    [May 24, 2013]
    Well take it for a little run, that will give it a charge, check your coding is correct aswell for horn warnings, then test.
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  6. Cabbyfan
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    Cabbyfan Member

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    [May 24, 2013]
    Roger that. Cheers. Will update later.
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  7. Cabbyfan
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    [May 26, 2013]
    Well it's been on a 40 mile drive, still no sound only flashing lights. When I scan with vcds lite I get the h22 short to ground, if I unplug the siren I get the no communication error as you would expect. I'm wondering if my ebay purchase is a duffer.
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