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Thread: ECUs really not responding? (ISTA-D)

  1. #1
    Join Date
    Dec 2017
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    The Netherlands
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    2002 BMW Z3 2.2i

    Question ECUs really not responding? (ISTA-D) - BMW Z3 (E36)

    Hi everyone.

    I own a BMW Z3 2.2i from 2002 (European model) and fixed various issues over the past 3 years using INPA.
    Recently I came across ISTA-D and comparing that program to a printed screenshot from the dealership that printed me an overview of some active errors at the time before I got a diagnostics tool myself seemed very similar.
    So I decided to install ISTA-D for myself on my own laptop.
    First I had some trouble getting it running on Windows 7 (x86), presumably .NET framework related.
    So I installed Windows 10 and ISTA-D pretty much worked out of the box.

    Anyway, I decided to do a full-scan on my car and ISTA-D showed me a nice overview of my car's modules.
    There were some errors active which I decided to clear, but to my surprise there were also quite some modules that ISTA-D marked as "ECU not responding".
    Looking at those specific modules (IR, GM and BC_0xCD), it doesn't seem like they are really "broken" as I don't seem have any issues related to those modules (they seem to work just fine).

    I also notice that there aren't a lot of modules compared to various screenshots and videos of ISTA-D I saw online. Is this always the case with E36 based cars?
    As the car is relatively old, I can imagine that there aren't a lot of modules in these type of cars.

    Do you guys (or gals) think the red modules really have communication issues in my car or if ISTA-D just marks them as false-positives?

    Here are some screenshots of ISTA-D:

    ISTA-D status 28-01-2019.png

    ISTA-D status 28-01-2019 - 2.png

    PS: I'm currently using Windows 10 Pro x86 with a K+DCAN USB cable using OBD.

    Thanks!
    Last edited by Olliek95; 01-28-2019 at 03:20 PM.

  2. #2
    Join Date
    Jul 2004
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    Houston, TX
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    36 Cylinders
    Make sure your cable latency is set to 1ms or 2ms in Device Manager.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  3. #3
    Join Date
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    2002 BMW Z3 2.2i
    Quote Originally Posted by 328 Power 04 View Post
    Make sure your cable latency is set to 1ms or 2ms in Device Manager.
    Thanks for your reply. I've checked and I do have the cable latency set to 1ms:

    COM settings 2.png

    COM settings 1.png

  4. #4
    Join Date
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    2002 BMW Z3 2.2i
    Bump. No-one?

  5. #5
    Join Date
    Jun 2015
    Location
    uk
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    e60 535d
    Did you have any joy with this? I have the same issue with my 2011 E70 X5.

    Sent from my ONEPLUS A6003 using Tapatalk

  6. #6
    Join Date
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    Quote Originally Posted by predshaw78 View Post
    Did you have any joy with this? I have the same issue with my 2011 E70 X5.

    Sent from my ONEPLUS A6003 using Tapatalk
    Unfortunately, nope.

  7. #7
    Join Date
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    Location
    uk
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    My Cars
    e60 535d
    It would definitely seem to be a laptop/software issue or cable maybe as Carly via a Bluetooth dongle seems to work fine. I know Carly is less comprehensive but doesn't seem to have a problem communicating with the ECUs.

    Sent from my ONEPLUS A6003 using Tapatalk

  8. #8
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    Your 2011 X5 is completely different in every possible way in terms of diagnostics than the E36 mentioned in first post.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  9. #9
    Join Date
    Jun 2015
    Location
    uk
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    5
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    e60 535d
    Yes i know, but as the issue appears to be with ISTA-D and not the car itself I was just curious if the OP had found a config issue or anything that might help.

    Sent from my ONEPLUS A6003 using Tapatalk

  10. #10
    Join Date
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    If you're using a K+DCAN, i would first make sure that your latency is 1ms in device manager. Windows default is 16ms and often misses modules.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  11. #11
    Join Date
    May 2012
    Location
    Springfield,IL
    Posts
    46
    My Cars
    2000 Z3
    I had a non-communication with a my immobilizer module in my E36/7 but my car worked fine which makes sense based on how it works (it doesn't use the diagnostic line to communicate with the DME). I found that it had a broken wire that was a pain in the butt to track down.

  12. #12
    Join Date
    Sep 2020
    Location
    Seoul korea
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    Bmw e36/7 z3
    Quote Originally Posted by Olliek95 View Post
    Hi everyone.

    I own a BMW Z3 2.2i from 2002 (European model) and fixed various issues over the past 3 years using INPA.
    Recently I came across ISTA-D and comparing that program to a printed screenshot from the dealership that printed me an overview of some active errors at the time before I got a diagnostics tool myself seemed very similar.
    So I decided to install ISTA-D for myself on my own laptop.
    First I had some trouble getting it running on Windows 7 (x86), presumably .NET framework related.
    So I installed Windows 10 and ISTA-D pretty much worked out of the box.

    Anyway, I decided to do a full-scan on my car and ISTA-D showed me a nice overview of my car's modules.
    There were some errors active which I decided to clear, but to my surprise there were also quite some modules that ISTA-D marked as "ECU not responding".
    Looking at those specific modules (IR, GM and BC_0xCD), it doesn't seem like they are really "broken" as I don't seem have any issues related to those modules (they seem to work just fine).

    I also notice that there aren't a lot of modules compared to various screenshots and videos of ISTA-D I saw online. Is this always the case with E36 based cars?
    As the car is relatively old, I can imagine that there aren't a lot of modules in these type of cars.

    Do you guys (or gals) think the red modules really have communication issues in my car or if ISTA-D just marks them as false-positives?

    Here are some screenshots of ISTA-D:

    ISTA-D status 28-01-2019.png

    ISTA-D status 28-01-2019 - 2.png

    PS: I'm currently using Windows 10 Pro x86 with a K+DCAN USB cable using OBD.

    Thanks!
    Hi. I have the same problem as you. Have you solved this problem? If you have solved it, can you tell me how?

  13. #13
    Join Date
    Aug 2023
    Location
    Netherlands
    Posts
    12
    My Cars
    2001 BMW Z3 Roadster 1.9
    I have the EXACT same problem with my Z3. Even the same modules that are not responding. Did you or anyone find a cause? I checked all my cables with a multimeter but almost out of ideas. Do we have the same (bad) cable?

    Kopie van IMG_5046.jpg

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