MS41 compatible?

[einsilas]

Hey, love your pydiabas!
I wanna try it out later!
This works on any ediabas compatible ECU? I wanna try it out with my MS41 (which is Ediabas compatible)
Thanks!

[BembelBytes]

Hi.
Thanks for your message.
The module should work with any ECU which is accessible trough EDIABAS. Let me know if you face any problems.
Ciao
Aljoscha

[einsilas]

Hey!
Thanks for your reply!

The one thing that I am currently not sure of, is what name my ecu should have? Hopefully I didn´t overlook that in the documentation...
TMODE is obviously the test ecu, but what should my MS41 ecu name be? like "MS41" ? That does currently throw an exception.

Am I supposed to add a new ECU manually to the pydiabas/ecu folder?

In advance thanks for you help!

Cheers
Silas

[BembelBytes]

Hi Silas.

You will most probably get the error SYS-0005: OBJECT FILE NOT FOUND which means the ECU name is not known to EDIABAS. If the name is known but the ECU cannot be reached you will get SYS-0010: INITIALIZATION ERROR.

There are different ways to find out the right name for your MS41:

• Use INPA to access your engine control unit and try to find the name in the section INFO [F1].
• Look inside your EDIABAS\ECU folder usually located at C:\EDIABAS\ECU and search for *.prg files starting with MS41 like MS410DS1.prg. You can then try all the files by using their file name without extension as names in pydiabas (in this case the name would be "MS410DS1").
• Use the group name D_MOTOR, G_MOTOR or D_0012 (depending on your BMW model) as ECU name in pydiabas. The correct ECU name will be found automatically. Using the following job you can than extract the exact name of your ECU:

from pydiabas import PyDIABAS

with PyDIABAS() as pydiabas:

    # Get identification of engine ECU through group file D_MOTOR
    # Depending on the cars generation, try the following group files too: G_MOTOR or D_0012
    result = pydiabas.job("D_MOTOR", "IDENT")
    
    # Get ECU name from result. Can be found as key VARIANTE in system Set
    ecu_name = result.systemSet["VARIANTE"]

    print(ecu_name)

I hope this can help you.
Ciao
Aljoscha

[BembelBytes]

Depending on the age of your car you might also need to try some different group files to access your engine control unit:

• D_MOTOR
• G_MOTOR
• D_0012 (This is for older cars using just the ECU address 0X12)

As far as I know, BMW uses 0x12 as address for the engine control unit, but I'm not 100% sure about it. By using a different group file you can access ECUs by the address like D_0010 for 0x10.

[einsilas]

Hey!

It works like a charm <3

MS410DS3 was the correct ecu name with my EDIABAS installation.

Thank you very much for your help!

Cheers
Silas

[BembelBytes]

Thanks for your feedback. I'm glad you are happy using pydiabas.

If you have further questions, just ask.

Best regards
Aljoscha