Problem:
Successfully read and write Audi Bosch Md1cs004 ECU with Foxflash. SCR off. But scanner shows fault code U2A200 after scr off. Reductant quality sensor no communication.
How to fix it?
Solution:
Just disconnect adblue pump.
Disconnect adblue if the fault doesn’t
disappear do dtc off solution as well.
User feedback:
Unplugged Scr unit. Dtc gone. But new in gateway instead for scr.. coded scr out with autel in gateway. Now no issue.
It is a Yamaha MT 07 2021 with R5F10DMFJ chip. How to read/write this massive chip? What tool can be used?


Here is the clue.
UPA 1.3 cannot read, you need pogrammer for this mcu smok, xtool, carprotool, CG100/CG100X,vvdi prog ect
Here is the pinout wiring connection.

Feedback:
I finally bought a CG100x from iecutool.ru. I’ve just made on the soldering points. successfully calculate km to 5000. Thanks so much for your help.