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Solved ✔ How to calculate cksm 93C86 dash psa - Printable Version

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+--- Thread: Solved ✔ How to calculate cksm 93C86 dash psa (/showthread.php?tid=46013)



How to calculate cksm 93C86 dash psa - fab - 03-02-2019

Hi guys,

I am trying to change milage in dash 308 93c86.
But i need to calc checksum..
Is there any tool?

tnx


RE: How to calculate cksm 93C86 dash psa - Clusters - 03-02-2019

Post your file and someone can help you.


RE: How to calculate cksm 93C86 dash psa - fab - 03-02-2019

(03-02-2019, 16:02 PM)Clusters Wrote:  Post your file and someone can help you.

tnx!
change to 94000 pls.

(i am trying to help someone else btw and i think dump is no good).

I tried this dump (2nd file) but chsm error....


RE: How to calculate cksm 93C86 dash psa - Clusters - 03-02-2019

Dumps are bad


RE: How to calculate cksm 93C86 dash psa - fab - 03-02-2019

(03-02-2019, 16:17 PM)Clusters Wrote:  Dumps are bad

Tnx m8 i thought so.
Strange thing is that when writing back ori there is no verify error...
Any idea how to reconstruct dump based on good dumps?
(i tried but without success...)


RE: How to calculate cksm 93C86 dash psa - Clusters - 03-02-2019

Might not be a verify error, but I'll bet the dash doesn't work. Did you read this as 16 bit? What programmer are you using? Read in circuit or desolder?

There is no way to reconstruct the dump, you will need a good dump.


RE: How to calculate cksm 93C86 dash psa - fab - 03-02-2019

(03-02-2019, 16:28 PM)Clusters Wrote:  Might not be a verify error, but I'll bet the dash doesn't work.  Did you read this as 16 bit?  What programmer are you using?  Read in circuit or desolder?

There is no way to reconstruct the dump, you will need a good dump.

Thats the funny thing;
Dash ok, Car ok.
Carprog, 8bits read.... 16bits no read...
Both out- & in-circuit....


RE: How to calculate cksm 93C86 dash psa - Clusters - 03-02-2019

You're luck if the dash works. You need to read it as 16 bit.

Your 94000 calculation is spot on.


RE: How to calculate cksm 93C86 dash psa - fab - 03-02-2019

THNX M8!!
(pls check also your pm)