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00470 Fault Code - Help required please

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Avus Sportback, Aug 26, 2013.

  1. Avus Sportback
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    Avus Sportback Member

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    [Aug 26, 2013]
    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
    #1
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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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    [Aug 26, 2013]
    1 of the canbus wires isn't connected properly or at all, hence single wire error.
    #2
  4. Avus Sportback
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    Avus Sportback Member

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    [Aug 26, 2013]
    Ok thanks, I take it they are the two orange wires (orange/green and orange/brown)?
    #3
  5. NHN
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    [Aug 26, 2013]
    Indeed.
    #4
  6. @udi A3
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    @udi A3 Site Sponsor Site Sponsor VCDS Map User

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    [Aug 26, 2013]
    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.
    #5
  7. Avus Sportback
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    Avus Sportback Member

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  8. NHN
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    [Aug 26, 2013]
    Just check your wiring for now.
    #7
  9. Avus Sportback
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    Avus Sportback Member

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    [Aug 27, 2013]
    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.



    [​IMG]
    [​IMG]
    [​IMG]
    #8
  10. NHN
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    [Aug 27, 2013]
    Scotch locks are shxt, do it properly & solder :)
    #9
  11. Avus Sportback
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    Avus Sportback Member

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    [Aug 27, 2013]
    You still convinced it's these two wires into the back of block "G"?
    #10
  12. NHN
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    [Aug 27, 2013]
    Block G where, ce module??
    #11
  13. Avus Sportback
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    Avus Sportback Member

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    [Aug 27, 2013]
    Yes

    [​IMG]
    Last edited: Aug 27, 2013
    #12
  14. NHN
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    [Aug 27, 2013]
    As I said remove scotch locks & test wound around the wires directly, as scotch locks are **** & don't connect very well at times, I never use them.
    #13

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