No-erasable DTC (checksumm error) in me7.1.1 4Z7_907

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Topic: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) (Read 21833 times)

prj

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #15 on: August 22, 2012, 12:10:19 PM »

Where could I buy this test clip?


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RS4boost

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #16 on: August 22, 2012, 12:43:18 PM »

Quote from: prj on August 22, 2012, 12:10:19 PM

Where could I buy this test clip?

The 3M with gold-plated contacts are the best...

http://de.farnell.com/ic-test-clips

But sometimes it doesn`t works reliably, because the power from the prommer supplied the circuit with voltage.
So, parts of the circuit will try to run and makes conflicts by accessing the EEPROM.
In some cases it helps to bridge the oscillator quarz.

Last week I have read successfull the EEPROM in my instrument cluster with a clamb, but writing back no chance.


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envisible

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #17 on: August 29, 2012, 01:22:18 AM »

Hello.
I have similar situation on my A4 B6.
ECU Bosch ME 7.5
HW 0261206878
SW 1037360910
95040 EEPROM

After flashing with my flash (CS corrected in WINols) and 20 miles running I have 19685 error and engine doesn't start.

As it is described above I changed in EEPROM: 1C - from 33 to 00, 2C - from 33 to 00.

How I need to correct checksum..
Which value I must set in 1E/1F and 2E/2? 00?
or I need some software to correct CS?
Thanks


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professor

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #18 on: August 29, 2012, 02:39:08 AM »

Easy way is to make the changes you want on the eeprom and save it.
The run this program on cmd (all files on same folder and cd to this folder too): Checksum85040 yourimmo.bin yourimmochecksummed.bin.

Do a checkup/comparison and normally the yourimmochecksummed.bin is the correct immo to flash back.

Kudos for this file to Julex


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envisible

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #19 on: August 29, 2012, 02:53:16 AM »

Big thanks to you.

Is my changes to 00 in EEPROM right?
Tonight I will try to correct chechsum and upload to ECU.

Maybe you can prompt me some free software to correct CS in ME7.5 flash to avoid that trouble in future.


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professor

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #20 on: August 29, 2012, 03:10:35 AM »

Changes in 1c & 2c from 33 to 00 yes.
Why and what changes those values is the question and of course how to stop it.


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envisible

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #21 on: August 29, 2012, 03:55:24 AM »

it's bad, but this program doesn't work..Maybe its because my system language..

professor
I'm so sorry, If you can use this programm, can you correct my eeprom on you computer?


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professor

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #22 on: August 29, 2012, 04:35:54 AM »

Here you go.


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envisible

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #23 on: August 29, 2012, 04:39:56 AM »

Big thanks. Wink

And one more question..Which software I should use to correct checksum on mappnig file?


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kenmac

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #24 on: August 29, 2012, 06:26:47 AM »

Quote from: nyet on August 20, 2012, 10:21:31 AM

I thought flashing through Nefmoto clears this

This wasn't the case on my ME7.5 when I had the same DTC. NefMoto didn't touch it. I ended up having to use me7_95040.exe to reflash the 95040 on the bench.

FYI, you can see what I changed here: http://nefariousmotorsports.com/forum/index.php?topic=1433.0


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kenmac

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	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #25 on: August 29, 2012, 06:30:03 AM »

BTW, this is what I used to flash the 95040. Worked like a charm and no soldering necessary. Boot-mode I believe is required.

http://nefariousmotorsports.com/forum/index.php?topic=1168.0


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funnix

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1.8t AUM

	Re: No-erasable DTC (checksumm error) in me7.1.1 4Z7_907_551N (Allroad 2.7tt) « Reply #26 on: November 19, 2014, 01:47:11 AM »

Moin,

i've got the error, too.(P0601) Now i readout the 95040.bin and modify the bits to clear the error! I#ve update checksumms with julex Checksum85040 tool. At last i've readput the DTC with Nefmoto and now the P0601 is cleared but i've got many other issues like p0600 and so on! Is that normal by bench flashing?


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