MK2-VRT
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« on: July 22, 2013, 06:51:09 AM »
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Hello,
I have problems with immo off, when i make the immo off, it dont work, the car starts and go out.
I have try this with 3 different 1.8T ECU's ME7.5
Anyone knows what i do wrong ?
See the original file and the off file in att.
With EDC15 and MSA ecu's its no problem, only the ME7.5 will not work..I read / Write with UPA..
Regards,
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ddillenger
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« Reply #1 on: July 22, 2013, 11:23:50 AM »
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Is that the eeprom from your ecu?
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MK2-VRT
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« Reply #2 on: July 22, 2013, 12:20:35 PM »
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No the ecu is not from myself, i can make it immo off on bench, but i cannot test it on car..
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ddillenger
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« Reply #3 on: July 22, 2013, 12:42:06 PM »
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Is that eeprom from the ecu you're trying to turn off, or is it one you got offline?
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MK2-VRT
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« Reply #4 on: July 22, 2013, 01:42:48 PM »
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No no, i desolder the eeprom from the original ECU, read it with UPA and make it immo off, solder it back and it dont work.
Even when i use the program Meucci / Otocheck / Volta / Immo dec / Immo tool.
Can you see what is wrong with the dump ?
Regards,
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ddillenger
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« Reply #5 on: July 22, 2013, 02:02:45 PM »
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Some ecu's use different eeproms. For instance, using a narrowband dump in a wideband does weird things.
Try changing 12 and 22 to 04 instead of 02.
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MK2-VRT
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« Reply #6 on: July 23, 2013, 01:34:58 AM »
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What do you mean with : using a narrowband dump in a wideband does weird things ? I dont use another dump or eeprom , just the eeprom that matcht with that ecu.
I will test the next time the immo off trick with 04, but than also recalculated the checksums ? ( -2 )
I think its not posseble to check it with VCDS if immo off is oke ? When i cannot test the ecu on the car, its *$&%^#*
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Carsinc
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« Reply #7 on: July 24, 2013, 06:16:18 PM »
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Why are there so many differences between these two files? None of these look like EEPROMS I've seen before,  |
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ddillenger
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« Reply #8 on: July 24, 2013, 06:46:15 PM »
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ECU's that use 512k flashes have odd eeproms. They XX the login code, and XX the vin/immo ID. They almost look like immobilizer 2, but not quite. If you use an eeprom from a 1024kb flash ecu on the earlier models it doesn't always work right, softcoding will be stuck at 00000, and all sorts of other issues.
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Carsinc
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« Reply #9 on: July 24, 2013, 07:00:12 PM »
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AHH that explains alot, but I still don't get the huge amount of differences between the files, From what I understand a Immo delete is 2 changes and 2 checksums. I don't get the changes, there is like 300 differences between the 2 files?  |
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ddillenger
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« Reply #10 on: July 25, 2013, 01:47:42 PM »
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If you turn off your OWN eeprom, there will be 4 changes.
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MK2-VRT
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« Reply #11 on: July 25, 2013, 02:51:02 PM »
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@Carsinc,
What do you meen ? When you look at the ori and immo off file, you see only 4 bytes changes, but it make the immo not off..:s its a ST95040 from a 2000 1.8T 20VT
Anyone an idea whats going wrong al the time ?
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Carsinc
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« Reply #12 on: July 25, 2013, 09:38:29 PM »
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No I see like 300 changes, is this a universal Immo off bin?
Just change the ori bin, it should work.
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MK2-VRT
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« Reply #13 on: July 25, 2013, 11:32:30 PM »
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No my friend, first unzip the file and than read it with a hex editor !! Than you see no 300 changes but 2.
And this is a immo off from ori bin, but it dont work.
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ddillenger
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« Reply #14 on: July 25, 2013, 11:41:10 PM »
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I told you what to do. Instead of changing bytes 12 and 22 from 1 to 2, change them to 4. Then, correct the checksums (decrease the checksum total by the amount you increased the page).
That should work.
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