NefMoto

How are you guys and gals doing, so, long story short, at my shop we have a 2005 audi a6 with what seems like a possible bad ecu due to dtc P2404 no going away, seems like ground is not good at pin 24 I believe the tech said. I have a junk 05 a6 here that i would like to use as a donor car for the ecu. I tried installing it but of course immo disabled any starting attempts. I read on other audi forums that this would be the place to come for help with this and possible skc's...is this possible or am I screwed? Thanks in advance for taking the time to answer me.

If it's a 4.2, no problem. If it's a 3.2 with a simos6 ecu, you're semi boned.

haha, awesome. Ive got a 3.2l with a simos6.22... damn. Well, any suggestions or just punt the car to the dealer and shell out the $2,000?

Do you have the login for the spare ecu?

 :( nope. I do have both vehicles here, a vag and vcds and the determination to make this work!

ddillenger84?.... where'd u go?! awww...... :'( Anybody?!

What generation immobilizer is it?

With both clusters and the right tools you can make it work.

Haha ;D now thats what i want to hear! Now, how do I prceed? :)

im pretty sure its 4th gen, has challenge.

You are not going to like the answer. You're going to need real tools, not clones. I think vagtacho can do it. Maybe f1torrents will chime in.

if its 4th gen c/r then you are screwed. avdi would do it probably though.

??? ... sooo are u saying vcds and vag from ross tech will not work? comes with hex+can connector.

You just need to get the login codes from both cars. It'll probably be easiest to retrieve from the instrument cluster.

This is beyond my area of expertise, going to have to wait for f1torrents.

whats up bud, who and or what is an avdi?

i really dont think VT will pull pins from that cluster. avdi has tons more features and does all immo's.

ross tech says this about c/r:


but they list a procedure for adapting, http://wiki.ross-tech.com/wiki/index.php/Immobilizer_IV_ECU_Swapping

Well looks like no matter what, first thing is first and I have to figure out how to get these pins or "skc's" Let me focus on that then I'll hit these boards again. I will still be logged in and open to any suggestions in the meanwhile so leave a comment. Thanks again guys.

***UPDATE*** Found a guy about 20 minutes away from me who was somehow able to transplant all the info from one ecu to the other in about 3 hours and it worked like a charm!!! Car started up no problem and no check engine light.  ;D

Excellent!

How did you do that? Desold and Swap the immo chip or something else?
thanks for sharing

im going to say he cloned it with bdm.

Better late than never, but yes the guy basically cloned the info from one to the other. The main issue on the original ecu was that it was loosing ground.

I think dealer can swap this ECU for 1 minute. At least EDC16 can be swapped, Simos6 is the same generation.