VW Kessy

[yugo45]

This is really strange but past 2 days I had 4 guys ( 2 of them good friends) asking me do I know about some home made software that car read Eeprom in VW Kessy form Touareg,A8, Phaeton via OBD. I told them I have no idea that is possible.

Does anyone know anything about this?

[qeso705]

Any screenshots? Why they are sure that it was working? On which years?

[yugo45]

Any screenshots? Why they are sure that it was working? On which years?

2004-2008 with VDO Kessy .

[H2Deetoo]

I know these modules support write commands (to eeprom I guess).
This is used by dealer tool to reset them.
Most likely they will also support some read commands as well ;-)

[yugo45]

I am surprised that no one on this forum do not know about it.

[sleepyrz]

maybe they do but they just not talking..........

[H2Deetoo]

What would be the use to read/write eeprom? Just to modify the VIN to be able to use a used Kessy module+remotes in another car ?

[TESTASTRETTA]

No its not so easy to change VIN only and the cars you mentioned have completely different kessy for example A8 vs touareg. I am working with these kessy couple of years already, sucesfully repair a lot of them but i do not know anybody who is able to used second hand kessy by recode, only option is to clone MCU

[yugo45]

What would be the use to read/write eeprom? Just to modify the VIN to be able to use a used Kessy module+remotes in another car ?

To extract data , Add key by dump, or ETC.

[hack_dd]

Hello
if the kessy is semens VDO you can adapt to another car. You need to check immo status - if is 6 you can adapt on chanel 50. If is different from 6 you have to change to 6 and after that to adapt on chanel 50.

[yugo45]

Hello
if the kessy is semens VDO you can adapt to another car. You need to check immo status - if is 6 you can adapt on chanel 50. If is different from 6 you have to change to 6 and after that to adapt on chanel 50.

I know how to adopt/program it, I just want to see if is possible to read it OBD, like people saying. It will be much easy this way instead pulling Kessy out.

[hack_dd]

Hello. NOT possible is to read eeprom from the kessy by OBDII. Need to open and read 93c86 eeprom.

[H2Deetoo]

First I would say that most likely always there is a backdoor to read/write eeprom.
However for example with Passat CCM module this is also possible, but in code the most important regions are blocked to read or write.

[danyparis]

I can change manualy the PIN code, CS and MAC, add key, VIN, date, immo ID in kessy