Mercedes EIS MOdule reset

**Shakeelbhugeloo** · 23rd January, 2018, 03:12 PM

HEllo

I have a dead MCU MC68HC705
with mask 1D69J .
Can anyone tell me where can i buy a MCU ?
or any website please ?

**Brat** · 23rd January, 2018, 04:04 PM

Did you have tool to write ROM in new mcu ?

**Shakeelbhugeloo** · 23rd January, 2018, 05:08 PM

Yes i have Digimaster 3
i need a blank MCU or New MCU

**droidwayne65** · 23rd January, 2018, 08:28 PM

Originally Posted by Shakeelbhugeloo

Yes i have Digimaster 3
i need a blank MCU or New MCU

What do you plan to do with the new mcu?

**Shakeelbhugeloo** · 24th January, 2018, 12:34 PM

Replace the damaged one.
and i using same data on the first to the new one.

**droidwayne65** · 24th January, 2018, 01:00 PM

Originally Posted by Shakeelbhugeloo

Replace the damaged one.
and i using same data on the first to the new one.

Ahhhh, so the original still communicates or failed after it was dumped? May be easier to pick up a used EIS and clone both mcus or use use just one from it, if you're sure nothing else is wrong with the original EIS.

**schouten1977** · 25th January, 2018, 02:12 AM

check soldering connections ore do it one more time this mcu dont get broken fast most time connection problem

**duplikeytor** · 25th January, 2018, 04:22 AM

The only way to make this work is you need to get another EIS with the same mask, and write the original EEPROM into the outside MCU and inside MCU.

Nothing that I'm aware of can read and write ROM. Outside MCU ROM is different than inside MCU ROM.