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  1. #1
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    00470 Fault Code - Help required please

    Hi All,

    ive just fitted a genuine towbar loom to my A3 this afternoon, since connecting it and enabling in the Can Gateway #69 Trailer, I now have the below fault showing....

    i haven't changed any other parameters other than enabling #69 Trailer

    any ideas as to what I've done wrong?

    below info fron Ross Tech website

    00470 - Combination comfort Databus in Single Wire: Open Circuit


    Possible Symptoms
    Data Bus Comfort working in Single-Wire Mode

    Possible Causes
    Wiring/Connectors from/to Control Modules
    Control Module in CAN Data Bus Comfort faulty

    Possible Solutions
    Check Measuring Value Blocks (MVB)
    Check Wiring/Connectors from/to Control Modules

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  3. #2
    NHN
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    1 of the canbus wires isn't connected properly or at all, hence single wire error.

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

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  4. #3
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    Ok thanks, I take it they are the two orange wires (orange/green and orange/brown)?

  5. #4
    NHN
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    Indeed.

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

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

  6. #5
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    u can check ecu measuring blocks around 125 and maybe up and down a few to see if anything shows up, no number is not installed, 1 is working 0 is failed connection iirc.
    '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.
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  7. #6
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    #Confused ?

  8. #7
    NHN
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    Just check your wiring for now.

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

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

  9. #8
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    Ok, checked wiring tonight and all appears to be in order, I connected the two can bus wires to the back of block "G" using Scotch locks, its wired exactly the same as it was on my 2007 A3?

    I have attached the below screen shots to try and give you some info, I'm not an expert with VCDS and don't really know how to use it for things like this.






  10. #9
    NHN
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    Scotch locks are shxt, do it properly & solder

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

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

  11. #10
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    You still convinced it's these two wires into the back of block "G"?

  12. #11
    NHN
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    Block G where, ce module??

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

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

  13. #12
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    Yes

    Last edited by Avus Sportback; 27th August 2013 at 21:33.

  14. #13
    NHN
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    As I said remove scotch locks & test wound around the wires directly, as scotch locks are crap & don't connect very well at times, I never use them.

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

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

 

 

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