Vida CEM swapping

[RickHaleParker]

I really have a lot of work to implement the hex editor in my tool at the moment, lack of knowledge, too,

You mention scripts in a earlier post. Are you implementing your tool in JavaScript or something other?

[urosm]

Yesterday I tried to read the PIN from the CEM module with the 1999 S80, but without success. A screenshot has been posted where it stops.
CEM P/N: 9494594.

Am I wrong somewhere or is it impossible to read the PIN via OBD?

[RickHaleParker]

CEM P/N: 9494594.

Am I wrong somewhere or is it impossible to read the PIN via OBD?

9494594 is a CEM-B. VTL has not figured out how to crack the CEM-B yet ... its a tough nut to crack.
CEM-B also requires the K-line hardware on the cracker if you are cracking in car through the OBDII port.

If the CAN-HS and CAN-LS is attached to the back side of a CEM-B the K-Line is not needed, providing that VTL has the code ignore the K-Line if communication with a CEM-B has been established.


Use the [PrntScrn] ( Print Screen ) key on your keyboard then look in Pictures\Screenshots\

[vtl]

Yes, P2 -04 needs K-line keep alive messages, even on the bench. I wasn't able to crack one, the pin compare routine has a "defect" that hides the pin mismatch latency.

[RickHaleParker]

Yes, P2 -04 needs K-line keep alive messages, even on the bench. I wasn't able to crack one, the pin compare routine has a "defect" that hides the pin mismatch latency.

Have you tried disabling the K-line function and tapping the CAN-HS & CAN-LS on the pins that go to other control modules rather then the pins that go to the OBDII connector? My understanding is, you only need the K-line Stay Alive to keep the OBDII port connected to the CEM. Thereafter you can communicate on the CAN-HS or CAN-LS. The other control modules never disconnect from the CEM. They are always alive.

If I am in error ... enlighten me.

Come to think of it, If I am correct the K-line relay could be pulled and jumped, eliminating the need for a K-line Stay Alive and the extra hardware on the cracker.

[matija0610]

Anybody wanting to try a different CAN transceiver. Somebody in Texas has some Bosch CF160 for sale on eBay. 10 for $9.99.

I ordered.
Teensy is waiting, I'm joining "soon"

Screenshot_1.png (152 KiB) Viewed 639 times

[matija0610]

I really have a lot of work to implement the hex editor in my tool at the moment, lack of knowledge, too,

You mention scripts in a earlier post. Are you implementing your tool in JavaScript or something other?

I wrote the tool in vb.net.

[RickHaleParker]

I wrote the tool in vb.net.

Visual Studio 2022 ?, Desktop development (.net) , tool set: Data storage and processing ?

Miss the days where everything was straight forward with scientific precision. How it a multitude of versions ( Community, Professional ... Enterprise ) with conflicting terminology. Massive messes trying to be one size fits all.

[matija0610]

I wrote the tool in vb.net.

Visual Studio 2022 ?, Desktop development (.net) , tool set: Data storage and processing ?

Miss the days where everything was straight forward with scientific precision. How it a multitude of versions ( Community, Professional ... Enterprise ) with conflicting terminology. Massive messes trying to be one size fits all.

https://visualstudio.microsoft.com/vs/f ... velopment/

at the moment, the SW is not capable of anything other than searching Vida's database, and it works well.
i know what, and where i need to change in bin, to change the car configuration.
I read / write .bin with external tool, also, i use other applications.for .bin editing

my mission is to combine all this into one package. i can't do it solo, but i think there are enough of us here to pack everything we know into one project

.

[RickHaleParker]

my mission is to combine all this into one package. i can't do it solo, but i think there are enough of us here to pack everything we know into one project

Keep putting out information on your project. Somebody might chime in and help you with the development. You got to paint an idea of what they would be getting into. Only way they can determine if it is within their skill set. Have you posted your project on Github or some place else?

Keep with us, we are hoping the cracker will evolve to where it can read and flash the .bin. If it gets that far, your project could become a client side application for the cracker.

What happen to T5Luke? I think he has a SBL.