Hi, i'm trying to study the immo2 of my car (Italy A3 1.8 Turbo 4 of 1999) because i need to swap instrument cluster, do to led problems. I 'm trying to retrive PIN from dashboard using Vag Commander 2.4. It reads the instrument eprom that i saved but givea a worng pin, i tried to log-in wit vag-com but it is refused. It gives 6392 as wrong login. I tried to change km of dashboard and it has worked without problem, so the cable and the software seems ok.
I read that the PIN is visible in hexdump of the IMMO2 eprom but i don't know where.
Is possible any help !
Thanks a lot to all !
 

06392 is pin!!

Hi, i'm trying to swap my FIS broken cluster with a similar, IMMO2 both.
I'm not able to code the keys to new cluster, probably the reader or the transponder of the key are gone or low power (it still works on old cluster!). I made lot of time the correct procedure with vag-com (i have pin of both cluster, got with vag commander) but nothing, no kay match.
 
So i'm only thinking what can i do. Solder FIS on "new" cluster (little tricky) on the new or DISABLE immo2.
In this immo2 disabling it is made with ECU or in cluster eprom ?
I read differente opinion , i know immo2 is also in ecu but it's not clear for immo2.
So is not clear what i must do to disable immo2 (if is last hope...)
Thanks !

Thanks for reply.
I make the procedure (very easy in theory...) for IMMO2 key matching of Rosstech.
I have pin of old cluster (useless) and of the new, got with vag commander and working (login is accepted)
Cluster part number 8L0919880A (was L the original but is the same) IMMO2 both.

http://wiki.ross-tech.com/wiki/index.php/Immobilizer_II_Key_Matching_(Cluster)

I have vcslite and vagcom 3.12 software with cable (working usually perfect on my 1999 Italy A3 )


[Adaptation - 10]
Enter 21 in "Channel Number".
[Read]
The "Stored Value" is the number of keys currently matched.
Enter a "new value" corresponding to the total number of keys to be matched, including any existing keys.
Any old keys are automatically being cleared. All keys, including existing keys, must be matched at the same time.
[Save]
[Done, Go Back]
[Close Controller, Go Back - 06]

    Repeat the following steps until all Keys have been matched:
        Switch Ignition OFF and remove Key.
        Insert the next Key and switch Ignition ON.
        The Immobilizer Warning Light will light up for ~2 seconds, wait until it goes out, indicating that the key has been matched.

I make in this way, when i put the key (i have only ONE key) the immo light go out and engine starts BUT if a close the igniton and turn ON again it start blingking again ! And again...and again...

In the instrument log i find (after some trying...)

17978 - Engine start blocked by Immo.
01176 - Key 65 - 10 - Unauthorized - intermittant
01176 - Key: Signal too Low
01179 - Incorrect Key Programming 35 - 00 -

So i suppose somenthig wrong with the trasnponder/receiver.
THe key is working perfectly with "old" cluster (that has only FIS broken).
Any idea ?
 

I'll try...
Mine car has no can-bus anyway....k-line only...
 

This was what i did before key matching. That seems working.
Only a doubt : someone say to swich ON BETWEEN a minute (so BEFORE a minute) other to wait AT LEAST a minute without turning on...
Thanks, i'll try to wait 5 minutes after key matching....
 

Just to understand : WHAT happens if i write the "old" cluster dump into the "new" ?
The key is matched directly ?
I can make a backup and try with vag commander...
 

But you can try on your own risk to change cluster dump but as i remember in a6 c5 the dumps are diffrent immo1/immo2 so in a3 will look similar. I think it wont work.