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Thread: Golf 6 MK6 Xenon to Halogen *Help pls*

  1. #11
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    Try the following:

    1. Open BCM 09 Central Electric and select security access
    2. Code is 31347 and click do it
    3. Select adaptations menu and search for "(2)-Daytime Running Lights- Tagfahrlicht Aktivierung durch BAP oder Bedienfolge mŲglich"
    4. Set to active.
    5. Go onto your light options menu in the infotainment and remove the tick from daytime running lights.

    Separately, you will also need to go into the Gateway module and remove the tick in the installation list for 55, otherwise those errors will remain.

  2. #12
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    Quote Originally Posted by myounus View Post
    Try the following:

    1. Open BCM 09 Central Electric and select security access
    2. Code is 31347 and click do it
    3. Select adaptations menu and search for "(2)-Daytime Running Lights- Tagfahrlicht Aktivierung durch BAP oder Bedienfolge mŲglich"
    4. Set to active.
    5. Go onto your light options menu in the infotainment and remove the tick from daytime running lights.
    I don't think this will work on a PQ35 BCM that doesn't even use UDS.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  4. #13
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    Thanks all, appreciate the advice!

    Iíll try the gateway removal first to see how that impacts the low beam functionality. And if it does Iíll try a couple DRL options.

    Couple questions:

    1. Do either of you know if I have to physically disconnect the AFS module?
    2. Are there any changes you think are necessary for byte 18 to tell the BCM that halogen lights are installed?

    Cheers

  5. #14
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    You can remove it but it'll involve re-wiring as the gateway will pickup on the installations. Try disabling it in the gateway.
    You can try changes in Byte 18.

  6. #15
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    I would definitely physically remove the AFS master and take it out of the gateway installation list. You might need a resistor between the unused CAN low/high wires but it'll probably be fine for now.

    Given you have a non-zero value in byte 18, I'd also suggest changing that to something appropriate for a halogen based vehicle (with LED tails) as that's what these lights are designed to fit. It's easy enough to restore to the existing behaviour.

    You should also change the other bits of the BCM coding to match a halogen based car too.

  7. #16
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    Ok great! Iíll disconnect the AFS module and remove it from the gateway and see what we got!

    Any suggestions on what to change byte 18 to? I.e. what coding would be halogen headlights with LED tails w/o fogs? Is there anything I can reference?

    Thanks again!!!

  8. #17
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    Alright, progress!!!

    Removing the AFS module physically and from the gateway, allowed us to turn off the headlights.

    Now for some reason we are unable to change byte 18 to either 1F or 21 which based on research should be the setting for Halogen with LED tails.

    Any thoughts on why that might be?

    Thanks!

  9. #18
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    Quote Originally Posted by the.seabass View Post
    Alright, progress!!!

    Removing the AFS module physically and from the gateway, allowed us to turn off the headlights.

    Now for some reason we are unable to change byte 18 to either 1F or 21 which based on research should be the setting for Halogen with LED tails.

    Any thoughts on why that might be?

    Thanks!
    What error do you get?

  10. #19
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    Quote Originally Posted by myounus View Post
    What error do you get?
    Neither of them are options in the dropdown menu, and typing in the values isnít working. Not sure why. Right now Byte 18 is set to 15. Does that mean that the BCM canít accept any other codes, other than the ones in the dropdown?
    Last edited by the.seabass; 10-20-2019 at 11:38 AM. Reason: Missed something

  11. #20
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    Update: We Never started the engine after the changes. Now we got a few other wonky things that we believe probably have to do with byte 18 still being set to a Xenon car.

    https://drive.google.com/file/d/1oiW...w?usp=drivesdk

    Next step is trying to figure out how to change byte 18. This might become a longer project, but it keeps it interesting 😀

    Anyone able to help figuring out why we are unable to change byte 18 to either 1F or 21?
    Last edited by the.seabass; 10-21-2019 at 08:35 AM. Reason: Forgot something

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