Volvo V70/S80/S60 1999-2004 CEM Thread

**sipelgas** · 6th May, 2013, 10:19 AM

Can you give HW numbers from these units?

**soxten** · 6th May, 2013, 10:42 AM

Cem black/gray number "9" in my list is the one with extra chip

**makz** · 29th May, 2013, 03:55 AM

HELP !
I need FLASH from Black/Gray CEM H/W number: 8688513 S/W 8696035 =INTEL AB28F400 B5B80 and MC68376BGCFT20 MASK=0F65K
my flash dump file corrupted !!!

**soxten** · 29th May, 2013, 06:31 PM

I need pinout how to bench CEM and DIMI have read wiring diagram but no luck.On CEM + 12v on pin E3/E6GND on pin E1How to fire it up, +12v on B1/B2/B3?CanL + CanH on pin D2 and D3DIM+12v on pin 14GND on pin 1CanL and CanH on pin 8 and 960/80/100 ohm parallel to CanL and CanH Please help to fire it up

**soxten** · 3rd June, 2013, 03:01 PM

I have now testad to put a "vigin" file in to a used Volvo CEM and mount in a car to let Volvo program as "new"
It`s no problem for Volvo VIDA to program the CEM and to make a update on software.
The car starts and run fine.

Of topic
(but my used CEM was broken to

the SRS/Airbag was flashing in DIM and we can`t delete it... and the seatbelt warning did`t sound on driver side.)

**Pzolee** · 2nd October, 2013, 10:36 AM

Hi guys.

I have a s80 2.0t. my dump is corrupted, my hw is 9494594. Anyone have a good dump, or a virgin dump? Please help.
Thanks!
Regards.
Pzolee

**chriskross** · 19th December, 2013, 05:55 PM

Hi soxton!

Are there no import data in the Motorola mcu? Is just the flash needed to clone a cem?
Btw can you send me virgin flash please?

Thx chris

**soxten** · 19th December, 2013, 06:35 PM

Hi
Pm me you'r email

**chriskross** · 20th December, 2013, 09:47 PM

just other question there are BDM points @ the back of the CEM, has someone already tested to read/write CEM? would be MUCH easier and FASTER to programm the CEM.20131220_170353.jpg

**jp_olli** · 23rd December, 2013, 09:18 AM

Interesting thread you have Soxten. I have also played alot with CEM-units.

I hope I?ve found this topic earlier since I?ve had a virgin flash for a year now. The black connector "CEM" is actually a Rear Electric Module unit called REM.

If someone has corrupted data on their CEM you could use Codecard.lt small soft to try repair the flash content. Usually you need new keys also. It does fail sometimes since the data is too corrupted. Then it?s best to make the CEM virgin with a new flash memory and use the dealers VIDA-online to adapt it to your car.

It would be great if we could make a database of CEM-softwares that have different features like cruise, aux heater, etc. Making our own (affordable) cruise installation sw-update would surely be a great product.

Never thought to BDM a CEM before, but sounds very interesting...

**ged** · 2nd February, 2014, 11:12 PM

I found the programmer, which reads flashCEM without soldering. Unfortunately, I already have a programmer, and for one function will not be buying another. With such a possibility could be to read all of the CEM and build a database.