FastECU

Sometimes, need to desolder chip from board to get a clear reading. If data every times differs, 100% need to do it.

On ecutools.eu I found the information that WA12212970WWW is a rebranded M32170F4VFP. Is that correct? I found Renesas documentation for that which has some info on flashing. I am pretty sure you guys already have this information and tried flashing it using that method, right? Why did that not ...

Oh no :/
I had done some research today and read something about iProg Pro recovery using a special script that I found for 300-400$. Is that what I would need then? And a iProg Pro (which I saw clones of for 60-90€)?

This script will work only with ORGIGINAL IProg Pro, not with clones...


I ...

*UJ70 = WA12212970WWW, just shorter.
Recovery is only available for UJ20/30 MCU's.
PCMFlash can't recover bricked UJ/WA series.

You should be able to read and flash. Attach the log's if you can't.

*970 ECU's can't be recovered with FastECU for now. Some time ago we tried to find a cheap way, but still no luck.
Fastest way is replace spare ECU and resolder eeprom chip from original one.

Just resolder EEPROM from original BIU to "new" one.

@gnif if you want, I can upload a patched MiniVCI firmware with extended buffer for testing.

Mini VCI J2534 is not good choice for flashing. It have very small CAN buffer. Try to use other J2534 device first.

Well, after some time is gone... Can we flash ECU's with SH7055 350nm and 180nm versions?
EcuEdit have one kernel for both of them. I think EcuFlash has the same.

There is no definitions for TCU modules. Forget it.

LV9N001E - Subaru Impreza WRX 2.0 DIT 2MB Hitachi SH72543R. FastECU supports Hitachi SH72543R, what a problem?
Maybe need to try it first, then ask?

This ECU can't be recovered with FastECU.

ROM is corrupted.
[2025-10-18 19:26:38.887] Send msg: 00 00 07 e0 10 43
[2025-10-18 19:26:39.092] Received msg: 00 00 07 e8 7f 10 22

Base of these old Hitachi definitions owns to Sasha_A80. And it was posted at some forum's without his permission. It's not Opensource.
So if you want to got it. You need to do it from a scratch.

MiikaS, do you need access to my OP with connected Hitachi ECU for development?