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Solved ✔ How to calculate cksm 93C86 dash psa
03-02-2019, 15:53 PM, (This post was last modified: 03-02-2019, 18:36 PM by Clusters.)
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fab Offline
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PPeugeot  How to calculate cksm 93C86 dash psa
Hi guys,

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

tnx
03-02-2019, 16:02 PM,
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Clusters Offline
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RE: How to calculate cksm 93C86 dash psa
Post your file and someone can help you.
If someone took the time to help you, the least you can do is take a few seconds and press two buttons! 

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03-02-2019, 16:03 PM, (This post was last modified: 03-02-2019, 16:09 PM by fab.)
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RE: How to calculate cksm 93C86 dash psa
(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....


Attached Files
DASH_93C86_204000kms_out.rar
File Type: .rar
Downloaded: 6 times
Size: 577 bytes

DASH_93C86_204000kms_out_94000.rar
File Type: .rar
Downloaded: 5 times
Size: 582 bytes

03-02-2019, 16:17 PM,
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Clusters Offline
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RE: How to calculate cksm 93C86 dash psa
Dumps are bad
If someone took the time to help you, the least you can do is take a few seconds and press two buttons! 

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03-02-2019, 16:22 PM,
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RE: How to calculate cksm 93C86 dash psa
(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...)
03-02-2019, 16:28 PM,
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Clusters Offline
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RE: How to calculate cksm 93C86 dash psa
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.
If someone took the time to help you, the least you can do is take a few seconds and press two buttons! 

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03-02-2019, 16:32 PM,
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fab Offline
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RE: How to calculate cksm 93C86 dash psa
(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....
03-02-2019, 16:41 PM,
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RE: How to calculate cksm 93C86 dash psa
You're luck if the dash works. You need to read it as 16 bit.

Your 94000 calculation is spot on.
If someone took the time to help you, the least you can do is take a few seconds and press two buttons! 

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03-02-2019, 16:47 PM,
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RE: How to calculate cksm 93C86 dash psa
THNX M8!!
(pls check also your pm)
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