Need cs from touareg ecu dump

[urcarpc]

Hi i need to programme a spare key on a 2008 touareg, ive read ecu with fvdi and k-tag, but i cant see cs and pin. Can someone help me with the cs. I also have kessy dump.

Thanks

[rafal]

post ecu label.............

[urcarpc]

post ecu label.............Its a tricore infineon mcuhttps://uploads.tapatalk-cdn.com/20191214/142b2140f7793d72ed79c21a1bf55b55.jpg

ive included kessy dump above

[rafalgt]

immo data from ECU

[urcarpc]

today i tried super vag handheld to retrieve pincode, and i got 41073 under edc17 ecu. Then i tried login in via vcds under engine/security, it accepted it.

i will try your details, and see how i get on. need cs to precode transponder.

thanks rafalgt

[EDIT] i tried it but the pincode doesnt work :(
will test whether cs is correct

[urcarpc]

Cs not working either

[rafalgt]

Try this immo data

[urcarpc]

Try this immo dataPincode is right, all 6 bytes of cs are correct. But i think 7th byte is encrypted because i cant programme key in using full 7 bytes cs

I used fvdi to find 7th byte from original key, by using above pincode and 6 bytes cs. After it completes search, I get a result, found cs 0x67(hex). So ive prepped a new transponder (virgin 7936) with 7th byte as 67, then tried to find 7th byte from this newly prepped chip, and i get the exact same result as the original working key, but when i try programming it, it doesnt unlock steering wheel. This damn tourareg is baffling me

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[Weasel3]

Name of Kessy.
Conti or Siemens?

[urcarpc]

Name of Kessy.
Conti or Siemens?Continental with 93c86

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[urcarpc]

I find the 7th byte as 67. Thats the original master keyhttps://uploads.tapatalk-cdn.com/20191216/093ef2a40fcf85e181a4d1ab7162e6f1.jpg

Another day wasted on this car, just cant get my head around it. When i change 6th byte to 98, it doesnt find the 7th byte from original key, this shows more evidence that i have correct cs.

But then i loaded vvdi2, under 4th gen immo touareg. In here we can unlock id46 with cs, which helped me save a few transponders. In this section i can make dealer key with working key, so i fill in cs (full 7 bytes) and login, but it fails to prepare key, i get error 'cant find 7th byte cs'. If i use the tp i prepared with above cs, i find the 7th byte as 67 and ready to precode new key. In vvdi2 it shows i might have wrong cs.

[urcarpc]

Right guys ive finally got car sorted, all started with 1 new tp key and 1 new remote key. You wouldnt believe why i couldnt programme key into system even tho having the correct cs and pincode. It was the key blade that was cut normal pattern instead of extended pattern. Such a silly mistake