Mercedes C200 W205 Delphi CRD3P.D1 Checksum

[shooperis]

Hello.

Anyone can help me to fix checksum on this Delphi ecu?

If i calculate checksum with my tool, car wont start when go to sleep and showing checksum fault.

[kotos96]

Hello.

Anyone can help me to fix checksum on this Delphi ecu?

If i calculate checksum with my tool, car wont start when go to sleep and showing checksum fault.

Here is your file with the corrected check sum
Upload and let me know if everything is ok

[shooperis]

Thank you kotos96,

but your file has same checksum like my tool calculating, so problem will be the same.

[figani]

What you use for writing?
What kind of tool...?

And what you mean with: when car go to sleep...?

[shooperis]

What you use for writing?
What kind of tool...?

And what you mean with: when car go to sleep...?

I using HexProg for read/write.

Go to sleep i mean when turn off ignition and wait 3-5min.

[figani]

I using HexProg for read/write.

Go to sleep i mean when turn off ignition and wait 3-5min.

Does the engine start twice...?
If yes, chksum is ok...

But your modification is bad...

[shooperis]

Does the engine start twice...?
If yes, chksum is ok...

But your modification is bad...

At this moment i can't say, but probably not. As i say when i can't start engine i get checksum fault (P0601 - There is an internal control unit fault affecting the calculation of the checksum.)

What is wrong with modificaton? Can be problem there?

[shooperis]

Problem solved.