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Author Topic: MED9sum: Correct those MED9 eeprom checksums!  (Read 133549 times)
DiegoAC
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« Reply #30 on: November 04, 2014, 06:22:06 AM »


Never heard of immo off through eeprom only, but with immo off file (flash), there´s no checksum error, so probably the checksum block that the MCU looks for is only for maps related to engine control, not sure if I´m clear enough.
I´ve used the above method for immo off and never had any problems with checksum. WinOLS has it covered pretty well, so if no check correction is made, you can trust it.

Regards,
Diego.
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flaattire
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« Reply #31 on: November 04, 2014, 03:33:14 PM »

Thanks for the clarification folks!
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technic
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« Reply #32 on: November 10, 2014, 02:49:16 PM »

E2PA is now version 2.0.0.

See : http://nefariousmotorsports.com/forum/index.php?topic=5833.msg54763#msg54763
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MK2-VRT
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« Reply #33 on: November 10, 2014, 03:03:19 PM »

Have anyone test it to make a MED9.1 immo off in only the eeprom ? If yes, it works or not ?
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technic
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« Reply #34 on: November 10, 2014, 03:23:07 PM »

Have anyone test it to make a MED9.1 immo off in only the eeprom ? If yes, it works or not ?
Why don't you try? VCDS channel 99 Wink
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_mumin_
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« Reply #35 on: November 10, 2014, 03:26:59 PM »

It works ...
Technic from who You have this solution ? DD ?
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technic
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« Reply #36 on: November 10, 2014, 03:31:56 PM »

It works ...
Technic from who You have this solution ? DD ?
Does it matter? I would probably have found solution sooner or later myself anyway. But, no, it wasn't dd.

Edit: I didn't mean to be arrogant, but I had an idea how to solve it myself Smiley
« Last Edit: November 11, 2014, 02:47:02 AM by technic » Logged
MK2-VRT
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« Reply #37 on: November 10, 2014, 03:39:06 PM »

Why don't you try? VCDS channel 99 Wink

I cant try because i'm not have a MED9.1 at home at the moment.

But whats the solution ?

I have a off file for eeprom and flash, with only that eeprom file it dont work.

End what about ch 99 ?

Do you mean ch 91 ? There you see the immo status..1 for off, 4 = immo on..
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technic
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« Reply #38 on: November 10, 2014, 03:45:43 PM »

Sorry, yes, 91
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MK2-VRT
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« Reply #39 on: November 11, 2014, 08:18:29 AM »

Tommorow i'v a MED9.1 ecu, i have read the same ecu last week, and have the eeprom file here.

I have load the file into the version 2.0.0 and save it.

Tommorow i load the 'eeprom off' file into the ecu and check ch 91 with vcds ( I dont have te car for real testing ).

I let you now guys..

In Att

1) Original file from ecu
2) Eeprom off from E2PE 2.0.0
3) Eeprom off file Winols
4) Flash off file Winols

3 and 4 works also, but now i will test it wih 2) only in eeprom..
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technic
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« Reply #40 on: November 11, 2014, 09:37:44 AM »

Your immo off files, flash+eep must be used together. eep file from E2PA will be enough for immo off, doesn't matter what flash you use.

 
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MK2-VRT
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« Reply #41 on: November 11, 2014, 09:41:52 AM »

I would be great if this work, i report tomorrow  Grin
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MK2-VRT
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« Reply #42 on: November 12, 2014, 09:03:41 AM »

I test and not working..

Immo status ch 91 : 4 ( Immo on )

Also DTC 005642 Checksum error and 005696 eeprom faulty.

Ori eeprom is 1) ( post above ) and eeprom off 2)

Is the checksum not correct or ... ??
« Last Edit: November 12, 2014, 09:38:57 AM by MK2-VRT » Logged
technic
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« Reply #43 on: November 12, 2014, 09:42:34 AM »

Works for me. I'll check your file soon
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MK2-VRT
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« Reply #44 on: November 12, 2014, 11:17:06 AM »

Thx mate..

I have tested with this file in att..

Also Immo status Ch 91 : 4

But now the faults : 005642 and 005696 are gone..
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