I am also interested on making an app which can write back by DiCE the modified flash into the car, thanks to T5Luke, on 28f400 cem that is possible but in the M32C CEM is still not solved.

I can help you change the config you want just send me the 320kb flash and i change it for you!

Hello,

I can help you modifying that flash, i have all neccesary data to change and information.

But i have no idea how to write it back to CEM and this is an issue!

If you want you can send me the flash.

Thanks!

Hello everyone! Thanks to all the posts and contribute there I was able to assemble a Teensy 4.0 to decode the pin of P2 and P1, it was quite easy. By the posts I have seen I was also able to read the Flash from a P2 V70 2006 and got the 320kb flash from it. Now my question is how to write the flash...

I am not sure what to do

So what should i do? Connect only LS CAN?

Hello, the CAN transreceiver is connected to 3,3v and GND but is from behind, i just connected the 120 ohm resistors and still have almost the same results, log attached. Key is in position 0. CPU Maximum Frequency: 600000000 CPU Frequency: 600000000 Execution Rate: 600 cycles/us PIN bytes to measur...

Where can i put the resistors? And what kind of resistors do i need?
I will install them, have the Teensy powered by 5v and send full log.

Fastest solution for that is disconnecting the connector is located if you just open the small plastic behind the mirror, other alternative is visit the closest Volvo dealer and they can disable it by software i think.

Hello, i followed the instructions and build the board as attached but i tried several times on P1 and P2 and have the same error.
Car key postion 0 on P2 when i tried, and on P1 i tried on postion 2.
I also tried with 100, 60 and 30 samples on P2 but still no results. Please help