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Thread: MK100 ABS Coding

  1. #1
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    MK100 ABS Coding

    NOTE: USE AT YOUR OWN RISK! NONE OF THIS INFORMATION HAS BEEN VALIDATED
    I wanted to post this info to see if anyone else could add to it.

    This is the information I have found regarding the MK100 ABS controller sourced from (Mostly GTI) Auto-scans I have had access to as well as from other threads on the matter

    EDIT: I have moved all of the below information to a Google Docs spreadsheet found >>HERE<<
    Last edited by Uwe; 10-16-2019 at 12:22 PM. Reason: Edit per post #3, 6, & OP's request

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    I am starting to wonder if Byte 0-3 are combined to make the Vehicle model.
    For Example
    Code:
    01FA6BA1: VW Golf 7
    
    43FA6AA1: VW Golf Variant 7
    
    0BFA6BA4: VW Tiguan MQB

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    Since I cannot edit the first post any longer here is some updated info regarding Byte29

    Code:
    Byte29    ESC Control & Driver Assistant Coding
    
    Ax    RCTA and HCA Installed
    8x    RCTA Installed
    2x    HCA Installed
    0x    RCTA And HCA NOT Installed
    
    x1    ESC ON
    x2    ESC ON/ASR OFF
    x3    ESC ON/ESC SPORT
    x4    ESC ON/ESC OFF
    x5    ESC ON/ASR OFF/ESC OFF
    x6    ESC ON/ESC SPORT/ESC OFF
    x7    ESC ON/ASR OFF/ESC OFF
    x8    ESC ON/ESC SPORT/ESC OFF
    x9    ESC ON/ASR OFF/ESC SPORT
    RCTA=Rear Cross-Traffic Alert (Blind Spot Monitoring)
    HCA=Lane Keep Assist

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  7. #4
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    Quote Originally Posted by Somnus View Post
    Since I cannot edit the first post any longer here is some updated info regarding Byte29
    I took the liberty of doing it for you.

    Quote Originally Posted by Somnus View Post
    RCTA=Rear Cross-Traffic Alert (Blind Spot Monitoring)
    Added to the forum's acronym decoder.

    -Uwe-
    Lock-down of sick people: Quarantine
    Lock-down of healthy people: Tyranny

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    Information regarding Byte 24 & 27

    So, to test a theory, I applied some coding changes to my car. During that adventure I found some more info regarding Byte 24 and 27.

    1) If I set Byte 24 Bit 4 I get the following from the ABS controller
    Code:
    1 Fault Found:
    8196 - Databus 
              U1121 00 [009] - Missing Message
              [FCAN : ACC_10 message is not received]
              Confirmed - Tested Since Memory Clear
    Byte 24 Bit 4 seems to be a flag for the vehicle having Adaptive Cruise Control.



    2) If I set Byte 27 Bit 0 I get the following from the ABS controller
    Code:
    8331 - Databus 
              U1121 00 [137] - Missing Message
              [FCAN: Quersperre_03 message is not received]
              MIL ON - Confirmed - Tested Since Memory Clear
    Byte 27 Bit 0 seems to be a flag for the vehicle having a Differential Lock module (VAQ).



    3) If I set Byte 27 Bit 1 I get the following from the ABS controller
    Code:
    8260 - Databus 
              U1121 00 [009] - Missing Message
              [FCAN: Pla_01 message is not received]
              Confirmed - Tested Since Memory Clear
    Byte 27 Bit 1 seems to be a flag for the vehicle having a PLA module.



    4) If I set Byte 27 Bit 7 I get the following from the ABS controller
    Code:
    8216 - Databus 
              U1121 00 [009] - Missing Message
              [FCAN: Fahrwerk_01 message is not received]
              Confirmed - Tested Since Memory Clear
    Byte 27 Bit 7 seems to be a flag for the vehicle having a Suspension Regulation module (DCC).
    Last edited by Somnus; 02-22-2019 at 09:46 PM. Reason: added title

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    Another addendum RE: Byte 24 & ACC

    So after some digging I have some more info regarding Byte 24

    NOTE: AS THIS BYTE DEALS WITH ADAPTIVE CRUISE, PLEASE TREAT THIS INFORMATION WITH A GRAIN OF SALT.

    This info has been validated across a limited group of NAR GTIs from year 2015-2018

    Byte 24
    Code:
    00: no Front Radar, standard cruise control (PR 8T2)
    10: Front Radar with standard cruise control (PR 8T2)
    14: Front Radar with ACC (PR 8T5)
    16: Front Radar with ACC (PR 8T3) [returns an OUT OF RANGE error on MK100ESP systems]
    ALSO, I have a google docs sheet with all this information in a slightly better format. If you would like to view it/make a comment to help out, you can find it HERE
    Last edited by Somnus; 04-30-2019 at 05:39 PM.
    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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    And another addition...

    It looks like Byte 26 has (AHEM, Lets pause for a moment and be honest here, figuring out MK100 coding is like trying to read a book with no letters. might have) something to do with the type of rear wheel speed sensor is installed as the vehicles that have byte 26 set as 50 show in PL24 as having the bi-directional sensors by VIN

    Byte 26 Rear Wheel Speed Sensors
    Code:
    00    Standard Rear Wheel Speed Sensors
    50    Bi-Directional Rear Wheel Speed Sensors
    also, I got around to checking out Byte 10 as well and it definitely has a connection to FWD/4motion

    Byte 10
    Code:
    02: FWD
    03: 4motion | If I set this on my GTI, it throws a Missing Message fault for the Allrad (I'm assuming short for Allradantrieb "all wheel drive") module.
    Last edited by Somnus; 05-09-2019 at 11:12 AM. Reason: Added some comic relief
    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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    Quote Originally Posted by Somnus View Post
    ALSO, I have a google docs sheet with all this information in a slightly better format. If you would like to view it/make a comment to help out, you can find it HERE
    Somnus, thanks for sharing the Spreadsheet.
    But please correct your thanks on the T6 Page.
    I don't know who the person is that you are thanking there, but clearly he just took my work from here: https://forums.ross-tech.com/showthr...l=1#post163327 and gave it to you in his name.
    That is not ok.
    Correct this please.

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  17. #9
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    dnoermann,

    I am terribly sorry that your work was taken from you and reposted without your permission. It was and is not my intent to have other people's work stolen from them in such a manner. I have removed the offending name and information
    Last edited by Somnus; 10-04-2019 at 04:55 PM.
    If you are curious about the MK100 ABS controller's Bits and Bytes >>MK100 ABS Coding (Google Drive)<< NOT 100% ACCURATE, INFORMATION ONLY

  18. #10
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    Quote Originally Posted by Somnus View Post
    dnoermann,

    I am terribly sorry that your work was taken from you and reposted without your permission. It was and is not my intent to have other people's work stolen from them in such a manner. I have removed the offending name and information
    Somnus, apology accepted, all ok
    Please keep the Data in your Spreadsheet, it was my intention to make this Data public, so better it is available on different places.
    Just add a short link to the original source.
    Greetings

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