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Disable reverse light bulb out with vcds

dieseldoos Oct 26, 2016

  1. dieseldoos

    dieseldoos Active Member VCDS Map User

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    Having now tried a variety of led reverse light bulbs in my 2012 Audi A6 c7, no matter what bulbs, cheap, expensive, error free can bus etc, my car always shows bulb out errors.

    I have put the originals back, but prefer the look of the led bulbs, so can just the reverse bulbs be coded out with vcds?
     
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  3. EXSpartan36

    EXSpartan36 Active Member Team Phantom VCDS Map User saloon Audi A4 TDi S-line owners group Manual

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    How about working out the resistance of the original bulb and compare it to the resistance of the led bulb then putting a resistor in the circuit to mimic the original?
     
    Bugeye_bob likes this.
  4. Gooders

    Gooders Active Member VCDS Map User

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    Could have a look on the vcds map. Most do it for a few beer chits


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  5. dieseldoos

    dieseldoos Active Member VCDS Map User

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    I have VCDS and I am on the map, searched around the programme, tried a few things but couldnt find where (if anywhere), it could be done. Did similar on a 2009 A4 but the adaptions are a bit different with the A6 so I am yet to find where to change it.

    I am not to clued up on electrical circuits etc regarding resistors, alltho I thought the error free canbus ones would work.
     
  6. dieseldoos

    dieseldoos Active Member VCDS Map User

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    Lots of trial and error, but I worked it out in the end, all sorted now.
     
  7. Bugeye_bob

    Bugeye_bob Active Member

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    How did you sort this ?
     
    EXSpartan36 likes this.
  8. dieseldoos

    dieseldoos Active Member VCDS Map User

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    Module 46 Central Convenience > Security Access 16 > 16017 (You need to use this access code, NOT the one VCDS gives you - this was my first hold up).

    I then took my bulbs out to see what adaption channels were changing.

    Adaption 10 > Channel 181 >Read

    Take note of the value you get, then convert that to decimal.

    When I converted mine to decimal it comes out to 1111111111111111. Bits 8,9,10,11 code for the reverse lights (1111RLRL11111111) so when I converted them it becomes 1111000011111111. Convert that back to binary, enter the new number, test then save. All done.

    ONLY The reverse light check are now disabled (all other bulbs are still checked).
     
  9. desertstorm

    desertstorm Moderator Staff Member Moderator VCDS Map User Audi A4 Audi Avant Owner Group quattro TDi

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  10. KrisKrk

    KrisKrk A6 C6 4F 2010 LeMans Avant Gold Supporter Audi A6 Audi Avant Owner Group TDi S-line owners group Le Mans Edition Manual

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  11. Jordan Pennings

    Jordan Pennings New Member

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    I have a 2002 a4 avant I want to replace the halogens with leds, what light do u recommend
     
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  13. sarkimi

    sarkimi New Member

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    I wanted to make the same upgrate as above on my A6 4F Avant 2010, unfortunatelly I get error 35: Invalid key, when I enter the security access code 16017. Any idea what code should I use?

    Thank you very much!!
     
  14. KrisKrk

    KrisKrk A6 C6 4F 2010 LeMans Avant Gold Supporter Audi A6 Audi Avant Owner Group TDi S-line owners group Le Mans Edition Manual

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    If no one else have vcds and is familiar with electrical work (i.e. diagrams and wiring) I recommend relay installation with load resistor to solve led strobe.
    Just done the number plate lights with that solution and computer bulb check does check them but see load resistor instead of leds. Inly when current to them is given, relay switches them on.


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  15. sarkimi

    sarkimi New Member

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    I am familiar with electrical work, but I would like to perform the same update also on the signal ligh bulbs. I do not think that a relay would be a good solution for this kind of signalization due to the amount of switching. The bulbs, which I have tried, do not have any errors, just when the control unit is performing a bulb check (approximately every 30s) the LED turn light flashes even with this low current. This can be very confusion for the car behind me.
     
  16. KrisKrk

    KrisKrk A6 C6 4F 2010 LeMans Avant Gold Supporter Audi A6 Audi Avant Owner Group TDi S-line owners group Le Mans Edition Manual

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    I have leds all over the car and strobe from each and every one of them.
    So far this has helped the number plate leds. Next are reverse as have the tailgate trim stripped already. Just waiting for parts to arrive.
    Another member here has done it on the rear indicators and gave me tips of how to install and connect these for the front ones and front fogs.
    Neat job and unless you want to, can avoid any connectors cutting.
    He has bot reported any errors or problems with the relays on indicators as of yet and it’s been couple of weeks since he done it.

    I don’t have access to vcds and been advised, it is impossible on A6 C6 to code this out so had to take other routes to solve the strobe.


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