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Author Topic: Reading/writing/cloning your immobilizer: A beginners guide.  (Read 205014 times)
turboat
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« Reply #30 on: July 31, 2014, 09:29:54 AM »

Is it worth pruning this thread and adding a FAQ? Or writing a new one?
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ljscodex
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« Reply #31 on: August 01, 2014, 05:38:21 AM »

hi, me again.

sorry but anybody reply my asks.

yesterday i wrote 95040 eeprom with this tool, thanks.

Audi A4 RB4 cant read via OBD/ non bootmode.

ONLY READ IN BOOTMODE!.

My ecu:  8E0 909 018 A / 8E0 909 518 AT
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matrai
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« Reply #32 on: August 23, 2014, 02:07:53 AM »

hello, do please immo off
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TCSTigersClaw
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« Reply #33 on: August 23, 2014, 07:10:30 AM »

hello, do please immo off

dude really ? Only 1 post and you are pleasing for immo off ? Sad
At least do a search there is already a solution for you
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VAG cars newbie tuner Smiley
matrai
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« Reply #34 on: August 23, 2014, 09:11:23 AM »

dude really ? Only 1 post and you are pleasing for immo off ? Sad
At least do a search there is already a solution for you
because of this can not be helped? I only recently found out about this forum. so I figured out that you have to change 01 to 02 in line 010 i020 and recalculate the amount and nothing else to do. but after writing to the ecu not appears line scan, and immediately close com port.
« Last Edit: August 23, 2014, 09:21:37 AM by matrai » Logged
SamH
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« Reply #35 on: September 04, 2014, 02:09:22 PM »

I'm having trouble getting the DME to read. I grounded pin 24 then connected power to pin 3.

I've posted a screen shot of the error I get. I'm trying to flash delingers IMMO off.

It's a ME 7.1.1 out of a 2.7T A6


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turboat
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« Reply #36 on: September 04, 2014, 04:12:13 PM »

Probably hasn't gone into boot mode, try counting to 8 or 10 not 5. You should be able to read in obd mode anyway, no need to bootmode (read an a6 2.7t in the car in obd mode today)
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SamH
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« Reply #37 on: September 04, 2014, 06:10:24 PM »

No luck. The DME is on the bench. I'm using a Galletto 1260 cable with the K line connector it comes with. I can't read in OBD either. I don't know what I'm doing wrong. I have the DME at 13.5v it's drawing about 0.25A. I kept pin 24 grounded for about 15 seconds after applying power to pin 3.

« Last Edit: September 04, 2014, 06:26:14 PM by SamH » Logged
316LV
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« Reply #38 on: September 14, 2014, 07:05:44 PM »

Fifteen seconds is a bit long. Try five to ten. You will get it eventually. Remember if you can connect with Nefmoto, then it isn't in bootmode... Get it connected to Nef on the bench to ensure your rig is working, then try bootmode.
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316LV
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« Reply #39 on: September 14, 2014, 07:38:00 PM »

because of this can not be helped? I only recently found out about this forum. so I figured out that you have to change 01 to 02 in line 010 i020 and recalculate the amount and nothing else to do. but after writing to the ecu not appears line scan, and immediately close com port.

Here is some help from Turboat: http://nefariousmotorsports.com/forum/index.php?topic=6134.msg57169#msg57169

Try his tool to immo off your file. It is possible something went wrong with your attempt.

As for the com port closing, not sure about that. Flashing the 95040 shouldn't have any effect on communications after the fact. All I can say is try and try again...
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Bi-turbo
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« Reply #40 on: September 14, 2014, 11:49:41 PM »

I wanted to sum up my experience with cloning Immobilizer and VIN data from one ecu to another.  I felt like I had to dig around a bit for this information, so I just wanted to summarize it all here in one post.

I started with a tuned ECU from GIAC and got another ECU as a spare to continue my tuning.  I disabled IMMO in the spare and tuned and ran it with immo off for a while.

I read the 95040 from both ecu's. I only wanted to clone over just the IMMO and VIN specific data in the eeprom.  Of course, I could have just wrote the eeporm from the GIAC ECU to the current one, but there was unisettings tweaks and who knows what GIAC writes to that file...  I just wanted the IMMO data.

Locations in file of data
VIN = 0xB5-0xB9, 0xD0-0xDB AND 0xC5-0xC9, 0xE0-0xEB
SKC = 0x32-0x33 AND 0x42-0x43. (To decode the skc: flip bytes, convert to dec, add leading zero)
IMMO Data (key data shared w/ cluster) = 0x34-0x3A AND 0x44-0x4A
IMMO ID = 0xDC, 0xF0-0xFC AND 0xEC, 0x100-x10C
IMMO ON/OFF=  0x12 AND 0x22 (01 on, 02 off)

I copied the data from each of these locations (using a hex editor) from my previous file to my new tuned file, immo flagged as on of course, checksummed the file and wrote it back to the 95040 on my tuned ecu.  Plugged the ecu back in and the my car fired right up.

Again, this is not new information, I just felt it was a bit scattered through threads and here it is all in one post.

Attached are:
1) screenshots from vcds showing vin and immo ids of both ecus
2) giac.bin is the source of my immo/vin data
3) custom.bin is the file I had been using with IMMO off while tuning
4) customAdapted.bin shows the adapted eeprom with the pertinent data merged from giac.bin
5) customAdapted(checksum).bin is the last file with the checksums corrected.

I am working on an eeprom editor/wizard in visualme7logger (uses me795040 to read and write) for an future release so you can do all this without even thinking about opening up a hex editor or command prompt.  Smiley  Of course you'll have to write your changes back to the ecu in bootmode.

Great write up, thanks

Is the Vin, immo etc always at the same address in the bin file?

Would like to be able to do the immo off easyer as i struggle at the moment.

Thanks
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turboat
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« Reply #41 on: September 15, 2014, 01:04:50 AM »

From what I've seen so far, yes the data is always in the same place, the only differences is the pages that don't have checksums calculated are sometimes different, but this will not affect an immo off.

If you are struggling, try 95040tool.
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Bi-turbo
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« Reply #42 on: September 15, 2014, 01:07:02 AM »

Thanks again, i will try both but i'd prefer to hex edit the immo off as i find that way easyer.
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turboat
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« Reply #43 on: September 15, 2014, 08:58:48 AM »

Thanks again, i will try both but i'd prefer to hex edit the immo off as i find that way easyer.

Using a hex editor is definitely better as you get a decent view of the file and can spot if its an odd one or corrupt input data, but I tend to use a tool because Im too lazy to calculate checksums manually and it works about 98% of the time Smiley
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Bi-turbo
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« Reply #44 on: September 15, 2014, 12:36:38 PM »

Ah didn't think about the checksums, take it the me7 checker won't correct it?
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