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Thread: VCDS capabilities with Touareg 7P/ SVM

  1. #1
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    VCDS capabilities with Touareg 7P/ SVM

    Hello,

    I'd like to purchase the latest VCDS but have a question before I do. I retrofitted the complete OEM air suspension system to my 2015 Touareg 7P (Canadian spec). It is fully functional, and I was able to code the cluster, gateway, and engine ECUs, but am unable to code the ABS module (MK25A). VCDS says that coding for this module is generally done with SVM and offers no bit explanations in long coding. I have compiled a large list of ABS coding for various 7Ps from around the world that have factory air suspension and I believe I'm certain which bits need to change (found the difference with models that do have and do not have air suspension). When I go to change these bits, the coding fails. I currently have an ABS DTC for "module incorrectly coded", which disables my traction control and ACC.

    I'm used a friends VCDS 16.8. Does the latest version support MK25A coding, or have some long coding info for the MK25A ABS module, or perhaps a security access code? I'm pretty confident that bit 1 and 4 need to be changed.

    Scan of the ABS module:

    Code:
    Address 03: ABS Brakes (J104)       Labels: 7P0-907-379.clb
       Part No SW: 7P0 907 379 R    HW: 7P0 907 379 A
       Component: MK25A         H37 0521  
       Revision: --------    Serial number: 43384438264023
       Coding: 5B7613C349246F59DAF4C89A92D7F6607701
       Shop #: WSC 31414 790 00001
       ASAM Dataset: EV_MK25AXT 010001
       ROD: EV_ESPMK25A01000.rod
       VCID: 4C970E56E70A3D220C-8018
    
    1 Fault Found:
    267264 - Control Module Incorrectly Coded 
              U1014 00 [137] - -
              MIL ON - Confirmed - Tested Since Memory Clear

  2. #2
    Benevolent Dictator Uwe's Avatar
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    Let's start with the fact that "your friend" is using a clone/pirate copy of VCDS.

    Does the current version of VCDS show you the bits and bytes for that ABS module's coding? I don't think so. VW has not documented them anywhere that I know of.

    Can it change those codings? Yes, it should be able to.

    Is a Security Access necessary? There's a good chance of that. Is it known? I'm not sure. We probably have some you could try, but we're certainly not giving them to someone using a clone/pirate copy.

    -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.

  3. #3
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    I just verified that the issue persists with the latest version of VCDS. Guess that answers my question.

    Oh well.

  4. #4
    Verified VCDS User PetrolDave's Avatar
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    Quote Originally Posted by chewblekka View Post
    I just verified that the issue persists with the latest version of VCDS. Guess that answers my question.
    What cable did you use with the latest VCDS - HEX-CAN, HEX-V2, HEX-NET or something else?

    A picture of the cable showing the serial number would be useful

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  6. #5
    VCDS Distributor
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    Or even post an autoscan using the latest version...

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