Saab Trionic 8 how to change VIN and IMMO code?

[chipauto]

i soldering original flasch in clone t8 cars not worc
dtc imnou
dtc ecu -nou
starter worcing-cars not started

[Bllinda]

T8 has 2 MCU, but all info is stored only in external flash (29BL802CB). I wrote above how to make correct clone of that ECU. Last I did it about one week ago. Tested and works for sure.

To read with Kess?
Please e-mail I will send you all the damp paste trionic8. Thanks


No Email addys please

[electrix]

Electrix, what file to program after bdm reading?


Christian Johansson via Iphone 5s

If You have file readed by BDM, just write it to new ECU by BDM first, and after that write the same file by CAN. If it doesn't works, make sure Your programming by BDM was correct - read file from new ECU programmed by BDM and compare to ori.

[electrix]

[QUOTE=Bllinda;2335888]To read with Kess?
Please e-mail I will send you all the damp paste trionic8. Thanks


I don't have Kess, but if it works with T8 You can read it, but for full working ECU clone You must have tool that writes T8 also by BDM.

[soxten]

Electrix, if I clone flash desolder flash read by wellon) and then program by obd (fgtech) same file from flash.
Do this work?



Christian Johansson via Iphone 5s

[electrix]

No, it won't work. File readed by external programmer is encrypted and You can't write it directly by BDM or CAN.

[soxten]

what program and adapter to read BDM on Trionic 8?

[electrix]

I use FGTech with Siemens-Marelli adapter.

[soxten]

Electrix, please give me pinout and how to connect for this ecu.
I have spend 4 hours to do it by fgtech but I give up now!....
Fgtech tells me that can hi and can lo is on pin 4 and 5 but if you read it normaly over can it is in pin 5 and 6....
I have try`d BDM but don`t have connect to mcu

[soxten]

I have now read by FGtech BDM

My FGtech don`t giv 5volt to mcu (and I have choose 5.0v in program) so I need to giv 5volt to pin/pad nr:9
I have read BDM and even desolder flash and read by wellon, I see that wellon swap lines when reading compare to bdm.
but if you swap lines when you read by wellon I think it work.

here you all have info how to read BDM link= t8 recovery
I use this pinout to read by can by FGtech (see my picture)

Pad numbers are: (3 and 5 are the dubbel pad=ground (-)
10 - 9
8 - 7
6 - 5
4 - 3
2 - 1

2. ECU gives 3,3V from PIN9 but it's not enough for BDM adapter to work so I made separate 5V power supply from my laptop. You can use any 5V supply for powering adapter if you want, just leave PIN9 disconnected and connect the ground of yours supply to the ground of combiadapter and the +5v to the pin 9 of combiadapter.
3.First give power to ecu (pin 2+3 +12v, pin63 ground WITHOUT THE RIBBON CABLE CONNECTET ON COMBIADAPTER).
4. Connect the combiadapter on windows xp machine. Usb port should be from motherboard and not from hub, so use the usb port from the back of machine.
5. Open bdm tool and connect to the combiadapter.
6. give the 5v to the combiadapter.
7. Connect the ribbon cable from ecu to combiadapter.
8. Try erase flash and erase/write flash.
To me the first erase give me fault, but after that the erase/write starts and finish 100%.
I don' remember good who steps is first, the 6 or the 7. try both.
hope these steps helps a little...

[soxten]

1) DUMP your BIN file from your original ECU, either BDM or CAN it doesn't matter but making a CAN connection is usually easier
2) BDM FLASH your original BIN file to your spare ECU - this step copies the VIN and IMMO, your car will start but won't the engine won't run properly
3) CAN FLASH your original BIN file to your spare ECU - this step 'resets' some adaption values (I think) and your engine will now run properly

You can now start tuning with your spare ECU .

[soxten]

If you read flash by wellon and then do "swap 16" the file gets correct. (swap in wellon program after reading)
open in T8suite and tune, then "swap 16" and reprogram to flash and I think it work perfect.

[soxten]

When I compare files from BDM and from CAN reading I see 3 byte is diffren in files.
(and last line FGtech write there name, no worry)

On BDM this 3 byte are "FF FF FF"

[soxten]

I did get truble when I read back file... 5v and I can`t write to MCU, 3,3 volt and I could write it to flash.
BUT all info get wrong...
I desolder flash and take original file and swap byte and program back into flash and solder it back on pcb.
Now I can read info from ECU.
after that I did write original file by can.
Testing ecu tomorrow.

[soxten]

Working 100%

Easy way to do this is
1:Read broken ecu by can (fgtech) and save "original.can.bin"

2:swap byte in file and save as "original.bdm.bin"

You have now 2 files!

3: program used ecu by fgtech BDM with "original.bdm.bin"
OR program flash by desolder flash and program with Wellon with file "original.bdm.bin"
(I like to desolder and program on my wellon)

4rogram used ecu by fgtech can with file "original.can.bin""

Mount in car and start!