Volvo S80 2.4 CEM P2 read on bench

**Willinickersen** · 19th January, 2021, 12:17 PM

Hi
I need to read Volvo CEM
HW - PN 9494594
9494997
99W263
Have to replace ECM Denso He2 and also need to read CEM to get immo info..

I have the Volvo Sync tool software for Synchronization

There should be possible to read the CEM by I/O terminal tool without desolder 28F400, but then I need the PIN code...
I'm not sure which activation in I/O terminal I need to buy... May be Volvo P2 to be activated in Volvo simcard..

Can anyone tell me what and how to do?

I'm very pleased for EVERY answer

**brend** · 19th January, 2021, 01:17 PM

Which one?

Originally Posted by Willinickersen

I have the Volvo Sync tool software for Synchronization

**Willinickersen** · 19th January, 2021, 01:51 PM

Volvo S60, S80, V70, XC90, XC70 Synchronization Utility 1.4

**brend** · 19th January, 2021, 03:54 PM

It's not work.

Originally Posted by Willinickersen

Volvo S60, S80, V70, XC90, XC70 Synchronization Utility 1.4

**vladanr** · 19th January, 2021, 04:30 PM

volvo.rar here you are pictures how to make synhro ,you have to desolder flash an read

**Willinickersen** · 19th January, 2021, 05:25 PM

Okay thank you for your reply.
This does exactly the same as "Codecard.eu software does. And I/o terminal also should do.
Which software do you prefer or suggest? And how to?

**vladanr** · 19th January, 2021, 05:27 PM

post dumps and someone will make you

**Willinickersen** · 19th January, 2021, 05:35 PM

Originally Posted by vladanr

post dumps and someone will make you

Okay, I understand you don't have read my thread.. I will do when I have sort out how to...
Very strange that the software describes exactly the same as your software..?

**brend** · 19th January, 2021, 07:47 PM

It's Tango sw, but this work only if tool is genuine.

Originally Posted by Willinickersen

Okay thank you for your reply.
This does exactly the same as "Codecard.eu software does. And I/o terminal also should do.
Which software do you prefer or suggest? And how to?

**Willinickersen** · 3rd April, 2021, 10:06 PM

Originally Posted by vladanr

post dumps and someone will make you

Hi and sorry for long time to upload files...
Have read eeprom from ECM and flash from CEM. Tried to synchronize, got message that flash needs to be fixed and did so with the Volvo 1.4 sync tool. Then I synchronized. No fault when read OBD by volvo vida, but cannot turn the engine /starter motor. I belive there's other problems.

But if you are able to check the files, then I can write the new files back to CEM.

Have smok jtag for CEM

Looking forward to your reply

**MartiLer** · 4th April, 2021, 05:08 AM

where are the dumps?

**Willinickersen** · 4th April, 2021, 10:19 AM

Sorry, attached now

**MartiLer** · 4th April, 2021, 10:43 AM

do you want to replace the ECM denso? making only sync is not enough.

**Willinickersen** · 4th April, 2021, 11:23 AM

Originally Posted by MartiLer

do you want to replace the ECM denso? making only sync is not enough.

If there's nothing wrong with the sync or file, there's no need to replace.... There was something wrong with CEM file and the software repair it before sync

**Aivis3** · 8th April, 2021, 06:37 PM

Originally Posted by Willinickersen

Hi
I need to read Volvo CEM
HW - PN 9494594
9494997
99W263
Have to replace ECM Denso He2 and also need to read CEM to get immo info..

I have the Volvo Sync tool software for Synchronization

There should be possible to read the CEM by I/O terminal tool without desolder 28F400, but then I need the PIN code...
I'm not sure which activation in I/O terminal I need to buy... May be Volvo P2 to be activated in Volvo simcard..

Can anyone tell me what and how to do?

I'm very pleased for EVERY answer

For Volvo Old CEM (Gray) you need a VOLVO SIM (For I/O Terminal)
But you need to patch file before! (Need replace PIN with FF FF FF FF FF FF), then you can Read/Write CEM via OBD with I/O Terminal tool.
You need to read CEM before anyway! Can read for example with Smok, USB NT programmer (via BDM) or chip desoldering.