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Thread: MK100 ABS Coding

  1. #11
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    Per dnoremann, I have re-added the T6 Transporter and 2K Caddy

    MK100 ABS Coding
    If you are curious about the MK100 ABS controller's Bits and Bytes >>MK100 ABS Coding (Google Drive)<< NOT 100% ACCURATE, INFORMATION ONLY

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  3. #12
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    Quick Update: (and to help with forum searches)

    I have seen a few questions pop up around the wheel speed sensor coding in the MK100 ABS module (Byte 26)

    Specifically, should it be 50 or F0 for the bi-directional sensors.

    Well, from my research, the answer is:

    50 is for Multi-Link Rear Suspension
    F0 is for Torsion Beam Rear Suspension
    If you are curious about the MK100 ABS controller's Bits and Bytes >>MK100 ABS Coding (Google Drive)<< NOT 100% ACCURATE, INFORMATION ONLY

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  5. #13
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    I am writing with the hope that my info will make your spreadsheet more complete. if you look at my autoscan:

    https://forums.ross-tech.com/showthr...chback-3-doors

    I find your sheet to be "wrong" for bytes 01 02 06 08 12 24 25

    let me know what you think
    my Golf came out of the factory with 13 ECUs. now she has 20. and counting

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  7. #14
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    Quote Originally Posted by darkchina811 View Post
    I am writing with the hope that my info will make your spreadsheet more complete. if you look at my autoscan:

    https://forums.ross-tech.com/showthr...chback-3-doors

    I find your sheet to be "wrong" for bytes 01 02 06 08 12 24 25

    let me know what you think
    You are indeed correct, the spreadsheet is far from a complete source, but I am grateful for the information that your scan has provided.

    I have updated the spreadsheet accordingly.

    If I may ask, which part of Bytes 20 & 24 & 25 are incorrect?

    EDIT: My Apologies, I misread byte 25 as 20.
    Last edited by Somnus; 12-14-2019 at 04:39 PM. Reason: Grammar
    If you are curious about the MK100 ABS controller's Bits and Bytes >>MK100 ABS Coding (Google Drive)<< NOT 100% ACCURATE, INFORMATION ONLY

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  9. #15
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    I beg to differ here with darkchina. Byte 24 bits are well known for a long time already. Byte 20 is inverse byte of byte 10.

    So I’m also interested in hearing what is wrong with those bytes?

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  11. #16
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    BYTE 24 is ok for ACC, but I also have PLA 3.0. how come my bits 5 and 6 are both at 0...? I happen to remember that setting those bits enabled always resulted with errors in the PLA.

    BYTE 25 I have AUTO HOLD (it's a perk from the Electronic Parking Brake), maybe I am wrong in assuming it's the same as HILL HOLD...?
    my Golf came out of the factory with 13 ECUs. now she has 20. and counting

  12. #17
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    Byte 24: In regards to PLA3, I have marked Bit 6 as "PLA related" since we have incomplete information regarding that bit specifically. I have however seen some scans with factory equipped PLA3 that has Bit 5 selected

    Byte 25: I was under the impression that Auto-hold and HHC are different since auto-hold will hold the vehicle in place (Via the EPB) indefinitely, whereas HHC only holds line pressure for a short duration before releasing the pressure and letting the car roll back. which begs the question, are the two controlled via two separate byte locations, or is auto-hold an Adaptation.

    I definitely have some more digging to do...
    Last edited by Somnus; 12-14-2019 at 08:58 PM. Reason: Decluttering my mind (and post)
    If you are curious about the MK100 ABS controller's Bits and Bytes >>MK100 ABS Coding (Google Drive)<< NOT 100% ACCURATE, INFORMATION ONLY

  13. #18
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    They are different things. Hill hold and autohold.

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  15. #19
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    Quote Originally Posted by downtime View Post
    They are different things. Hill hold and autohold.
    +1

    My Octavia III with manual gearbox cannot have Auto Hold as the Octavia III doesn't have an EPB but it does have Hill Hold where the hydraulic pressure is maintained for a few seconds after you release the brake pedal.

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