Adding the immobilizer to a b5 s4/a4 using an a6 ecu?

Pages: 1 [2]

« previous next »

Author

Topic: Adding the immobilizer to a b5 s4/a4 using an a6 ecu? (Read 19658 times)

terok

Full Member

Karma: +8/-3
Offline

Offline

Posts: 134

	Re: Adding the immobilizer to a b5 s4/a4 using an a6 ecu? « Reply #15 on: March 15, 2012, 03:51:34 AM »

2002 model might have immo3, it was introduced around that time.
In immo3 clusters, VIN is shown in the additional info field.


	Logged

Gonzo

Sr. Member

Karma: +21/-30
Offline

Offline

Posts: 483

	Re: Adding the immobilizer to a b5 s4/a4 using an a6 ecu? « Reply #16 on: March 15, 2012, 05:20:01 PM »

You DO know that disabling the IMMO takes 30 seconds over the OBD port with the right tool right? Grin


	Logged

NOTORIOUS VR

Administrator
Hero Member

Karma: +58/-7
Offline

Offline

Posts: 1056

	Re: Adding the immobilizer to a b5 s4/a4 using an a6 ecu? « Reply #17 on: March 15, 2012, 06:46:36 PM »

Quote from: Gonzo on March 15, 2012, 05:20:01 PM

You DO know that disabling the IMMO takes 30 seconds over the OBD port with the right tool right? Grin

I'm aware of this.. but I'm also aware that 98% of people will not have the tools or the know how to use them in order to take my car.

And having IMMO is better then not having it at all... besides it wouldn't be the only safeguard I have... just another one that is mostly transparent in operation which is nice.


	Logged

SCHNELL ENGINEERING BLOG · STANDALONE ECUS · TUNING · DYNO · WIRING · PARTS · VEMS
Google Talk: NOTORIOUS.VR
n00bs start here: http://s4wiki.com/wiki/Tuning

jibberjive

Hero Member

Karma: +23/-2
Offline

Offline

Posts: 536

	Re: Adding the immobilizer to a b5 s4/a4 using an a6 ecu? « Reply #18 on: April 11, 2012, 06:28:54 PM »

Quote from: NOTORIOUS VR on March 12, 2012, 05:43:08 PM

^^^ very nice, thanks

not sure what the next step would be.. but I assume I will try to read out my friends allroad EEPROM... then I suppose I would need to edit it to match the VIN in the RS4 cluster of mine and stick it into my ECU.

Once everything is wired up, decide what flash/software to use that will enable the IMMO.


	Logged

julex

Hero Member

Karma: +79/-4
Offline

Offline

Posts: 923

	Re: Adding the immobilizer to a b5 s4/a4 using an a6 ecu? « Reply #19 on: April 13, 2012, 06:49:04 AM »

Quote from: NOTORIOUS VR on March 15, 2012, 06:46:36 PM

The $1 mil question is can this be done without key with valid immo ID? remember that while it is possible to disable immo with a tool via OBD2 with a tool, it so only because you normally have original key with valid immo ID in the ignition which is a prerequisite for ECU to allow programming session.

If you don't have valid key in or do it on the bench, it is not that easy. It requires boot mode programming.

I am not 100% sure if there is a work around this by hacking into a cluster, taking SKC and re-programming it to some other ID, then trying to do ECU adaptation to your "hijack" immo id with the VCDS procedure, but it sounds like a lot of effort to jack somebody's car. It would just be easier to flatbed the car tbh.


	Logged

BDK

Jr. Member

Karma: +2/-0
Offline

Offline

Posts: 28

	Re: Adding the immobilizer to a b5 s4/a4 using an a6 ecu? « Reply #20 on: April 15, 2012, 09:01:11 AM »

Just a few thoughts on this,

-Yes, it is possible to read the me7 eeprom via obd and disable the immobilizer with some tools regardless of if they are matched or a valid key is used. This I have done and know sure.

-If you're really worried about someone disabling the immobilizer over obd why not just install a K wire kill switch somewhere. It would slow someone down, and they probably wouldn't hang around to check wiring. If they really want your car they'll come with a spare ecm with the immobilizer off or a flatbed but it's a easy inexpensive way to make it harder.

-As for actually adding the immobilizer to an s4, when matching the ecm and cluster I believe there are more than just the vin and skc. To use vag commander nomenclature there are component security and mac bytes . I started doing some experiments on this but lost interest. I will take a look if you guys would like, or maybe you already have this figured out. From what I remember it didn't appear be as simple as putting the same values in both the ecm and cluster but I'm not sure. To further complicate things I'm fairly certain you can only replace 1 component (ecm/cluster/key) at a time or else you need to replace all with new previously unadapted parts. I know vag commander has functions to reset the ecm or cluster to virgin state but I haven't personaly tested these functions. Again, I have some cluster bin files showing various states of being adapted so I could try to find various values in the bin file but I haven't had time to really disect them. If it will help I'll try to find them and see what I can get out of them. All of my research files are from golf/jetta cars with vdo clusters just to warn you. Who is the manufacturer of the rs4 immo clusters?


	Logged

Pages: 1 [2]

« previous next »

Jump to:

Navigation

Personal Tools

November 28, 2024, 10:33:42 PM

Welcome, Guest. Please login or register.
Did you miss your activation email?

Navigation

Personal Tools

Search