XC90 T6 2003 Shut down . ECM? HELP

[kay11]

Originally Posted by kay11

it was a vida i think. i recognised the tool online
i dont have the codes. the volvo dealer said there was a lot of codes but they may not be related to the problem.
So he wanted me to go back after a few weeks and read them again, to see what codes where showing.

I have just checked the car again.
there is power to the aircon and heater.
When i turn the key to start, i get a click from what am guessing to be the starter.
But still no power to anything else.

[Bill Edmondson]

It couldnt be something as simple as the alternator/battery could it?

[Clan]

Originally Posted by Ron_XC90

Did you check the passenger side footwell for water? Could be that the CEM has had water ingress

The water leak problem into the CEM only happened from 2005 to 2007 models , when ford redesigned the CEM and loom coming into it , the 2003 was designed properly ..

Cars are like women , they complain a bit first when they are unhappy , giving you a chance to sort it out , ignore it at your peril! At least you have a permanant fault now which should be easy for an experienced volvo dealer to diagnose ... if your ferrari , or B&O hi-Fi packed up would you take it to someone who hasnt got all the info and training and experience and back up to sort it out ?

[400-ascona]

I would get the unit removed and checked for dry joints by a competent electronics expert or TV repair man. These things rarely fail intermittently for anything other than a dry joint which can be fixed with a soldering iron.
My MG ZT has the BMW sat nav system and Harmann Kardon sound system. The sound went intermittent, sometimes on, sometimes off. 30 minutes with a soldering iron and magnifying glass had it fixed.
The bonus is that if it is a dry joint you will lose non of the vehicle specific programming that you get in modules these day's. Just a case of unplug, solder and plug back in.

Rob.

[kay11]

Originally Posted by spokoluzik

Was CEM or ECM off of network when readings have been taken???
Looks like CEM/ECM internal error. Can be also crank position sensor.
BTW CEM is located above driver's pedals.
ECM under bonnet.

i had the AA come out today to try and look at the problem.
They got fault code U0073 comm ctrl mod

[kay11]

Originally Posted by Clan

The water leak problem into the CEM only happened from 2005 to 2007 models , when ford redesigned the CEM and loom coming into it , the 2003 was designed properly ..

Cars are like women , they complain a bit first when they are unhappy , giving you a chance to sort it out , ignore it at your peril! At least you have a permanant fault now which should be easy for an experienced volvo dealer to diagnose ... if your ferrari , or B&O hi-Fi packed up would you take it to someone who hasnt got all the info and training and experience and back up to sort it out ?

i had the AA come look at it today.
He said his friend had a similar problem on his XC90 and it was water leaking in to the electrics.
But he checked for this and said it was totally dry.

[spokoluzik]

can be anything then. better find someone with vida to read codes and then reload software if necessary.

[kay11]

Originally Posted by spokoluzik

can be anything then. better find someone with vida to read codes and then reload software if necessary.

The local garage is saying the CEM has gone and needs replacing. Their just double checking it is that and not something else.
Any idea on how much it should cost for a new one.
They said that you cant put a used CEM in . Is that correct?

[spokoluzik]

yes but has to wiped. btw ask 400-ascona. i think he has broken t6 xc90
and ring them http://www.ecu-repairs.com/engine-ecus/ im sure they will be able to wipe one for you
new one is about 700-1000

[400-ascona]

Have the CEM removed and taken to electronics repair place. No re-programming and probably only cost an hour someones time plus a blob of solder. No need to worry about re-programming then.
Rob.