G85 sensor retrofit

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Danypolo5
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Joined: Mon Mar 07, 2022 12:02 pm
Drives: Polo 9n3 1.4 tdi bnv
Location: Italia

G85 sensor retrofit

Post by Danypolo5 »

Hello everyone :mrgreen:

I'm trying to retrofit a g85 sensor on a polo 9n3 (BNV engine) non esp to subsequently install a sports steering box (no g250 sensor).
The sensor I purchased is this:
Image
Image
Image

To test I connected the cables as shown in the diagram:
Image

-pin 2 (can low) to pin 3 of the BMC xs6 connector;
Image

-pin 3 (can high) to pin 5 of the BMC xs6 connector;
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-pin 4 to earth directly to the battery; pins 5 (+30) and 6 (+15) joined together directly to the battery positive.

Are the connections correct?

Now if I change the power steering coding (44) from 101xx to 112xx this excludes the g250 sensor;

Subsequently if I go into the CAN control unit (19) in group 126 I see that it recognizes the sensor.
Image

But now I'm stuck here, I don't know how to proceed because I can't find the angle reading given by the sensor: how should I proceed?

As additional info I can say that I saw the g85 sensor present in the instrument control unit (17) but here I note that there is no communication
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and that I only tried to turn on the car without walking on it.

Thanks everyone in advance
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iichel
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Drives: Polo 6R 2.0 TDI, Passat B8 2.0 TSI
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Re: G85 sensor retrofit

Post by iichel »

can you access the module itself? does your car have an ESP system? I guess not since your car didn't have it from factory? vcds autoscan?
Danypolo5
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Posts: 7
Joined: Mon Mar 07, 2022 12:02 pm
Drives: Polo 9n3 1.4 tdi bnv
Location: Italia

Re: G85 sensor retrofit

Post by Danypolo5 »

no, I can't access block 04 (if that's what you mean);
My Polo doesn't have an ESP from the factory (thankfully).

I tried to do a lap and I don't have power steering, so I loaded my sister and gave her the g85 telling her to turn it as similar as possible to my movements... it's difficult, but seems to have power assistance like this; I'll have to mount it behind the wheel and give it a good try.

But in any case I can't login to calibrate the sensor and I can't find the degree reading from any control unit :|
Image
Image

Vcds scan no error:
  • Tuesday,12,March,2024,14:57:30:00009
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x86
    VCDS Version: 21.9.0.2
    Data version: 20210903 DS330.0
    www.Ross-Tech.com


    VIN: WVWZZZ9NZ6Y235903 License Plate:


    Chassis Type: 9N (9N - VW Polo (2002 > 2010))
    Scan: 01 02 03 08 09 15 17 19 25 37 44 45 46 56 76

    VIN: WVWZZZ9NZ6Y235903 Mileage: 228980km-142281miles
    -------------------------------------------------------------------------------
    Address 01: Engine Labels: Redir Fail!
    Part No: 045 906 019 CA
    Component: 1,4l R3 EDC 0000SG 7537
    Coding: 00002
    Shop #: WSC 00788
    VCID: 56A9DB9AB20754394B-4B32
    WVWZZZ9NZ6Y235903 VWZ7Z0F3718612

    No fault code found.
    Readiness: 0 0 1 1 1

    -------------------------------------------------------------------------------
    Address 03: ABS Brakes Labels: 6R0-907-37x-ABS80.clb
    Part No SW: 6Q0 907 379 AF HW: 6Q0 907 379 AF
    Component: ABS 8.0 front H04 0002
    Revision: 00000000 Serial number: 00000000000000
    Coding: 0002190
    Shop #: WSC 00788 785 00200
    VCID: 0103D8C65B0903814E-515A

    No fault code found.

    -------------------------------------------------------------------------------
    Address 08: Auto HVAC Labels: 6Q0-820-045-V1.clb
    Part No: 6Q0 820 045
    Component: Klimaanlage X0840
    VCID: 6AD19F6A167FE0D9FF-5178

    No fault code found.

    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. Labels:. 6Qx-937-049-C.lbl
    Part No: 6Q1 937 049 D
    Component: 00BK BN-SG. 1S34
    Coding: 09358
    Shop #: WSC 00788
    VCID: 3C7D69322C6BAE695D-5178

    No fault code found.

    -------------------------------------------------------------------------------
    Address 15: Airbags Labels: 6Q0-909-605-VW5.lbl
    Part No: 1C0 909 605 K
    Component: 18 AIRBAG VW51 0P 0009
    Coding: 12600
    Shop #: WSC 00788
    VCID: 2C5D5972DC0B3EE9CD-515A

    No fault code found.

    -------------------------------------------------------------------------------
    Address 17: Instruments Labels: 6Q0-920-xxx-17.lbl
    Part No: 6Q0 920 802 K
    Component: KOMBI+WEGFAHRSP VDO V02
    Coding: 01132
    Shop #: WSC 00000
    VCID: 3777761E154D8D31B0-515A
    WVWZZZ9NZ6Y235903 VWZ7Z0F3718612

    No fault code found.

    -------------------------------------------------------------------------------
    Address 19: CAN Gateway Labels: 6N0-909-901-19.clb
    Part No: 6N0 909 901
    Component: 0B7L GATEWAY CAN 1S34
    Coding: 00014
    Shop #: WSC 00788
    VCID: 70E58D0230A31A09B1-515A

    No fault code found.

    -------------------------------------------------------------------------------
    Address 44: Steering Assist Labels: 6Q0-423-156.clb
    Part No: 6Q0 423 156 AB
    Component: LenkhilfeTRW V270
    Coding: 11281
    Shop #: WSC 00788
    VCID: 6FE78E7E2D9D05F1A8-5178

    No fault code found.

    -------------------------------------------------------------------------------
    Address 46: Central Conv. Labels:. 6Q0-959-433.clb
    Part No: 6Q0 959 433 E
    Component: 3F Komfortgerát 0002
    Coding: 00067
    Shop #: WSC 00788
    VCID: 3D7B64363771A7616A-4B18

    Subsystem 1 - Part No: Steuerger
    Component: t Fahr. antwortet nicht

    Subsystem 2 - Part No: Steuerger
    Component: t Beif. antwortet nicht

    No fault code found.

    End-------------------------(Elapsed Time: 03:07)--------------------------
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iichel
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Drives: Polo 6R 2.0 TDI, Passat B8 2.0 TSI
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Re: G85 sensor retrofit

Post by iichel »

maybe you can do the basic setting via 44 power steering module?
Danypolo5
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Posts: 7
Joined: Mon Mar 07, 2022 12:02 pm
Drives: Polo 9n3 1.4 tdi bnv
Location: Italia

Re: G85 sensor retrofit

Post by Danypolo5 »

Image

I login by entering "40168" but after 2 seconds it reloads everything and the highlighted text appears (in the various measurement blocks of the power steering control unit there is nothing that refers to the g85, but only to the g250; which having changed the coding to 112xx results "no")
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