Hi, I just bought many parts to repair my 2001 V70 2.4T (I have to change the ECU and the wiring harness) so the guy sent me also a part calledCEM that I have to replace to fit with the ECU... the problem is I just can't locate the old CEM... I tought it was under the dash (near the driver's door) but the part that I have there is quite different and I found it is called a CMA2 on a diagram.

Do I look at the wrong place? does the part I received is wrong? please help me, I've been waiting for 6 months to find an aftermarket part!!! I wish I can dive my volvo soon!

 

The Cem is under the dash where you looked.
Maybe he sent the wrong part can you post a pic?

 

here is what I have (CMA2) and secundo what I got (CEM) as You can see it's quite different...

 

ooops Hi tech! and Tank You for taking time to help me... I'm a neabie in volvo mechanics (and in english speaking...) I'll do my best! ;-)

 

The Cem is further under the dash.
You have to look closely almost like at the bottom of the windsheild.
The Cma2 is the passenger fuse panel under the cover on the end of the dash.

 

oups, maybe I am blind but i can't figure where it is... and the dash is out from the car... I have nowhere to plug it... there only the CMA, un part connect to the wiring harness from the engine compartiment (wich is square) but where the f... is the CEM?

 

anybody have a pic or a well describe schema to help me find it?
Thank You

Martin

 

Is it LHD or RHD?
It is in a bracket that stands straight up.
Look at this link I am posting it is for a HID upgrade for the P2 cars to stop the bulb failure light.
But is shows where the CEM is and how to get it out.
http://www.xenonvalot.com/xenonfixvolvo.html
It is ok directions but gives a real picture of it.

 

I noticed that I also have a fuses box box at the end of the dash but it's not what i thougt was the cma

 

HMMM The Cem doesn't have fuses in it.
It only has relays and shunts.

 

yessssssssssss the picture is exactly what I have... but the part that I just received (please see the 3rd message) is smaller than what I have... and it's called CEM... the picture You've just sent is called CMA2 ... Somebody want to buy my volvo... it is easyer with a Chevrolet Cavalier!!!! ;-)

 

The picture I just sent in the link is the CEM
Your listings might be wrong.Or they sent you the wrong part.

 

Ok just looking it over again I think I just figured it out.
What they sent you was teh Bare Bone CEM.
You need to remove all the relays and then slide the CEM out of the holder and swap it out.

 

Like this.

 

well... it seems that I'll don't drive my car next week end!!! Thank You so much tech... by the way, is it true that if I change the CEM I have to change the ignition, the CPUand all that stuff?

 

If you install a used CEM you would need every computer out of the car it cam out of.
Or if it was new the dealer will have to install software to make it work.

 

Really??? You are my hero!!! so you think I can pull out the central part of what I have and replace it with what I got??? if it work, Ill send You a big Xmass gift!!! seriously, I'll try it tomorrow and let You know.

by the way, You seems have a huge database or nice soft with a lot of pic... what is it? may I can get it somewhere?

 

The program is called Vadis Sometimes you can find it on E-bay.

 

yes, I have it but it doesn't work well... or I have only a part of it... anyways, thank you for your help, I'll be back tomorrow after taking out the ECM from my car and try to put the barebone... I tought that with QuoVadis, I can rest the computer... am I wrong?

 

The Dealer has to do it with software.
But give it a try you never know.