Vida CEM swapping

[Volvisti]

Hello, short qustion before i go ahead, is it enough to just pull the CEM out and put +- 12V on the appropriate contacts or do i have to have the keylock to put it in pos 1/2 to start and the rest aswell for a bench cracking? i have a 12V 4Amp power supply from my dad, which would deliver steady power, thanks
(its a P1, 2007)

[vtl]

You can save your time and crack it in the car. Unless your CEM is FUBAR and needs a replacement.

[Volvisti]

hi, thanks for reply! i have some wiring issues in the car i am about to fix, there is no obd socket etc in the car at the moment, so i thought i could do it while i'm sorting other things. was just wondering if i need keylock etc as well or not - or is it just power on and go....

[vtl]

CAN and power/GND. Pinouts are here in the topic, search for "719" for example.

[Volvisti]

thank you, will have a look

[Bekirebu]

hello everyone;
I prepared my circuit according to @vtl's recommendations. It managed to decode the PIN on the first try. I now have the PIN code for my MY12 XC90. Thank you very much.
I'm a novice at this and I'm just getting started. I have some experience in coding field. I'm working on Python and Arduino. I have information about CANBUS. I can perform detailed analysis on the VIDA database. Besides, I don't know much about vehicle software hacking.
I will see what I can do with the PIN code I obtained. I am open to your ideas that will help you get started on this matter.

[vtl]

hello everyone;
I prepared my circuit according to @vtl's recommendations. It managed to decode the PIN on the first try. I now have the PIN code for my MY12 XC90. Thank you very much.
I'm a novice at this and I'm just getting started. I have some experience in coding field. I'm working on Python and Arduino. I have information about CANBUS. I can perform detailed analysis on the VIDA database. Besides, I don't know much about vehicle software hacking.
I will see what I can do with the PIN code I obtained. I am open to your ideas that will help you get started on this matter.

As far as I know, there's no opensource CEM flash reader via CAN. You can use your cracker board to write an Arduino sketch to read the CEM. For that you need an SBL (secondary boot loader). I think someone here in the thread mentioned he has it.

If we get a solution to write flash dump back, it would be triple awesome.

[oscilloscope]

So I have been offered free volvo v50 today from a customer who's husband sadly passed away. , as far as his wife knows he was having some starting issues , cant see the key or somthing she said and someone had changed the region settings too france so now all the ICM is in French. , I'm considering taking on the car as its free and it's an estate petrol.

[minormatt]

Hi Guys

I'm not a technophobe - but im not an electronics engineer either. I have been reading through tbe thread and have got to page 124... and my brain is fried! There are some really smart people here!

I have 2 cars which need the CEM pin, a 2004 T5 and a 2005 D5..

Has a solution been identified to get the pin from the earlier (brick) P2 CEM? And does anyone make units to sell for those of us who are less electrically competant?

Thanks!

[vtl]

Hi Guys

I'm not a technophobe - but im not an electronics engineer either. I have been reading through tbe thread and have got to page 124... and my brain is fried! There are some really smart people here!

I have 2 cars which need the CEM pin, a 2004 T5 and a 2005 D5..

Has a solution been identified to get the pin from the earlier (brick) P2 CEM? And does anyone make units to sell for those of us who are less electrically competant?

Thanks!

Brick CEM is not crackable over CAN-bus yet.