Understanding VAG Immobilizer 3 -- nefariousmotorsports-com.pdf

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Re: Understanding/retrofitting immobilizer (Updated for Allroad owners/DEATH CODE) Reply #30 on: February 22, 2013, 04:16:46 AM





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NefMoto > Technical > Cluster and Immobilizer (Moderator: ddillenger) > Understanding/retrofitting immobilizer(Updated for Allroad owners/DEATH CODE)

Author Topic: Understanding/retrofitting immobilizer (Updated for Allroad owners/DEATH CODE) (Read 11698 times)

prjHero Member

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Thanks for the info about the code.

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AARDQFull Member

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Quote from: ddillenger on February 21, 2013, 05:06:39 PM

The immo-off files in this thread won't work on the me7.1.1 allroads. If you flash one, you'll get a p1640, EEPROM error.

The attached immo-off has worked for me on four different ME7.1.1 ECUs. All running 4Z907551R or Nsoftware. Also worked on a 551S but I had other issues ('programming not finished' error) so can'tvouch for consistency. The ME7.1.1 uses a 5p08c3 rather than 95040, but 95040 file does work giventhat half of the 5p08c3 isn't used. Another option...

I can't for the life of me find the thread the file was originally posted in, but credit to whomevermodified it to begin with. Last Edit: February 22, 2013, 10:52:51 AM by AARDQ Logged

ddillengerGlobalModeratorHero Member

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I flashed every immo-off file I had. Every time, the ecu coding field was all 0's, wouldn't allow changes,and was stuck with the eeprom error code. I finally just Off'd my own bin (don't ask me why I didn't dothis to begin with, I just got in the habit of flashing a universal off) and cleared the death code and allwas well. The immo-off bin I attached is the one I created, I filled the vin and immo-id portions withplaceholders and corrected the sums.

In any event, I'm not unfamiliar with the Immobilizer, but this threw me for a loop. I figured why notupdate the thread as it seems more and more me7.1.1's are being tuned.

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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity tolearn from your experience!

Email/Google chat:DDillenger84(at)gmail(dot)com

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AARDQFull Member


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Your way is more correct, immo (sorry, bad pun).

Oh, just remembered, the file I posted will require that cruise be recoded.

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ddillengerGlobalModeratorHero Member Quote from: AARDQ on February 22, 2013, 11:07:01 AM

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Re: Understanding/retrofitting immobilizer (Updated for Allroad owners/DEATH CODE) Reply #36 on: February 22, 2013, 06:07:07 PM

Re: Understanding/retrofitting immobilizer (Updated for Allroad owners/DEATH CODE) Reply #37 on: April 04, 2013, 08:09:08 AM

Re: Understanding/retrofitting immobilizer (Updated for Allroad owners/DEATH CODE) Reply #38 on: April 04, 2013, 01:25:34 PM

Re: Understanding/retrofitting immobilizer (Updated for Allroad owners/DEATH CODE) Reply #39 on: April 04, 2013, 02:45:25 PM

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Oh, just remembered, the file I posted will require that cruise be recoded.

Try my immo-off next time, It should work without any additional coding. I pulled it from an R-box thatread out as S, and modified it accordingly. My goal with this thread is a one stop shop for all me7Immobilizer research. As such, I'd love feedback on ways to make it better, along with results!

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k0mpresdHero Member

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Quote from: ddillenger on February 22, 2013, 10:57:20 AM

I flashed every immo-off file I had. Every time, the ecu coding field was all 0's, wouldn't allow changes, and wasstuck with the eeprom error code. I finally just Off'd my own bin (don't ask me why I didn't do this to begin with, Ijust got in the habit of flashing a universal off) and cleared the death code and all was well. The immo-off bin Iattached is the one I created, I filled the vin and immo-id portions with placeholders and corrected the sums.

In any event, I'm not unfamiliar with the Immobilizer, but this threw me for a loop. I figured why not update thethread as it seems more and more me7.1.1's are being tuned.

why would you not use the original bin each time? using a "universal" file is such a bad idea. it will getyou in trouble one day. and i think that day was yesterday. it takes about 5 seconds to modify theoriginal bin.

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ddillengerGlobalModeratorHero Member

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Quote from: k0mpresd on February 22, 2013, 11:19:26 AM

why would you not use the original bin each time? using a "universal" file is such a bad idea. it will get you introuble one day. and i think that day was yesterday. it takes about 5 seconds to modify the original bin.

When you're right, you're right. But to be honest, I'm glad I did run into this. Had I not, I couldn't havewritten this up. It was a bit frustrating, I'll give you that.

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cyril279Full Member


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24c02 Immo & checksums

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eliotroyanoFull Member

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Quote from: cyril279 on April 04, 2013, 08:09:08 AM

24c02 Immo & checksums

Great info friend. But does this apply to all M382, M383 and M592 Immo II ecus? Logged

cyril279Full Member


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I don't have the answer to that, this is just an illustration of the patterns of usage that I've seen thusfar that have worked. trial and feedback is the best way to know for certain.

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cyril279Full Member


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the image was generated to give pictoral reference to the structure of the 95040.If i've crossed up a few details, please let me know, and I'll fix them.cheers

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esilviuNewbie


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I have next situation I bought a spare used ME 7.5.10 ECU and I don't have its pin code, I know myoriginal pin code from the ECU I have now on the car. If I install the spare ECU in the car and try tostart - the immo will come on . In this particular case is it possible to read over OBD not in bootmodethe content of 95040 chip with ArgDub tool ME7_95040 in order to decode the pin from the spare ECU

In other words:

Has somebody succeeded to read the content of 95040 chip with ArgDub tool ME7_95040 over the OBDport from an ECU not matched with the cluster?

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cyril279Full Member


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esilviu,This is a relatively small board, whose members take the time to read through most if not all of thethreads.Posting the same question in different locations within one hour will not help the amount or quality offeedback that you receive.

Post once, give the board some time to respond, and in the meantime, enter



Re: Understanding/retrofitting immobilizer (Updated for Allroad owners/DEATH CODE) Reply #44 on: July 10, 2013, 05:20:46 AM

"site:nefariousmotorsports.com [your question]" into google for the best results.

I appreciate the specific nature of your question, but most questions about eeprom-over-OBD usingargdubs' tool, end in "bench-and-bootmode it"

-Cyril Logged

esilviuNewbie


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Thanks for you fast reply

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automan001Full Member

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Next 7 bytes after pin code (0x34-0x3A & copy in 0x44-0x4A) is a immo key which links cluster withecu. In example above it's 69 D9 38 E6 D3 B2 71. When cluster is bind, same key is stored in the cluster. Tomake cluster linked with ECU you just need to make these byte sequences equal. Read from cluster andwrite into ecu without any adaptation. Or read from ecu and write into cluster, but then you will needto rebind your keys This is very helpful when you try to bind incompatible cluster and ecu or youconstantly get an immo error. Instead of just immo off this is better solution. Last Edit: July 10, 2013, 05:26:18 AM by automan001 Logged

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Understanding VAG Immobilizer 3 -- nefariousmotorsports-com.pdf

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