S40 V40: - CEM Wiring/Repair Information - Page 5

stuhandy · Feb 11th, 2012, 20:21

Gatos, thanks for the reply. I have a 2002 v40 diesel, fog lights incl.

If I need to programme the new CEM, how is this done?

Iam new to this website

stuhandy · Feb 11th, 2012, 20:36

Thanks Gatos, I think I would like to keep this as simple as poss. Do you know if Siamblue still has there CEM and would they part with it?

gatos · Feb 11th, 2012, 22:32

Quote:

Originally Posted by stuhandy

Gatos, thanks for the reply. I have a 2002 v40 diesel, fog lights incl.

If I need to programme the new CEM, how is this done?

Iam new to this website

In that case you will need a CEM from a V40 with fog lights and you will not need any further programming at the dealers.

Quote:

Originally Posted by stuhandy

Thanks Gatos, I think I would like to keep this as simple as poss. Do you know if Siamblue still has there CEM and would they part with it?

Yes he does. I actually have his one at my house house. I will ask him how much he wants for it and he will either reply here or send you a pm

baldmosher · Feb 12th, 2012, 18:24

Awww, shucks, bad timing.

The new stalk didn't work gatos, so it looks like my CEM after all. Anyone know where to locate the relay for the front windscreen wipers? I notice it's not mentioned on the diagram...?

LizzieT · Dec 11th, 2012, 20:20

Would you by any chance have a CEM for sale for 03 V40? No dipped headlamps but full beams work OK.

Quote:

Originally Posted by gatos

The CEM should fit on the car as it is with no need for programming. However, certain functions might need programming, ie fog light and rear wiper.

However, if the replacement CEM came from a car with fog lights on it, then you will not have to program it for fog lights. If you have a V40 and the replacement CEM comes from an S40, you will need to program the rear wipers to the CEM. However a V40 CEM will work on an S$) as is.

What car have you got? I have an S40 CEM and Siamblue has a V40 CEM, both with fog lights, so no programming will be needed.

gatos · Dec 11th, 2012, 20:52

Quote:

Originally Posted by LizzieT

Would you by any chance have a CEM for sale for 03 V40? No dipped headlamps but full beams work OK.

Can you check the part number on it and let me know so I can check the ones I have? It should be 8 digits long and starting with 306 or 308. Are you sure it is your CEM that is at fault?

LizzieT · Dec 11th, 2012, 21:18

Pretty sure it's the CEM, local auto-electrician diagnosed problem back to the CEM. Same thing happened a couple of years ago, no dipped headlights and volvo quoted €500+ for the part. Eventually got one in a breakers yard although it was on an S40 as not so many V40s sold over here. Although Volvo parts claimed that it was an unusual fault when I rang around beakers yard lots of the CEMs were missing! Part no. I have is 30621305 which is the one from the S40, unfortunately I dumped the original. By the way, great forum.

hawkins · May 12th, 2012, 17:00

i have similiar problem in that front and rear fog lamps and the dash tell tales dont work neither do front and rear parking lights or switch illumination help! 2002 s40 diesel sport im thinking cem packing up

T4Rick · May 24th, 2012, 21:53

This is a really good thread

RandomGuy · May 26th, 2012, 14:13

Hi all,
I have an 02 S40 1.9D Sport. Had a similar problem, n/s dipped beam not working. Bought "fully tested" replacement CEM from Ebay. Fitted and now have n/s dipped beam but no main beams in any of the switch positions. Refitted original CEM and main beams returned. Contacted seller, who says CEM needs to be reprogrammed! Other contributors to this forum have bought CEM's from scrappies and not had to do this.

Have I been conned or just unlucky? Surely whatever car it is from, the main beams should work?

Can I just swap the n/s dipped beam relay to my old CEM?

Feb 12th, 2012, 18:24	#4
baldmosher moshmobile driver Last Online: Apr 22nd, 2023 16:07 Join Date: Nov 2010 Location: Warrington View Photos By: baldmosher	Awww, shucks, bad timing. The new stalk didn't work gatos, so it looks like my CEM after all. Anyone know where to locate the relay for the front windscreen wipers? I notice it's not mentioned on the diagram...? __________________ baldmosher™ Drives: 63 V60 R-Design Lux Nav P* 106K Kill List: 07 S40 SE Sport D5 120K V40 SLux 1.9D 306K V40 S 1.9D 152K VW T4 LDV Pilot Golf GL 1.9TD Saxo 1.1i Fiesta 1.0 Pop

May 12th, 2012, 17:00	#8
hawkins New Member Last Online: May 13th, 2012 19:23 Join Date: May 2012 Location: edinburgh	fog light and parking light i have similiar problem in that front and rear fog lamps and the dash tell tales dont work neither do front and rear parking lights or switch illumination help! 2002 s40 diesel sport im thinking cem packing up

May 24th, 2012, 21:53	#9
T4Rick Premier Member Last Online: Oct 11th, 2012 08:49 Join Date: Jun 2010 Location: manchester	This is a really good thread __________________ I said a 10 second car not a 10 minute car Chipped and rolling roaded at 221.9 hp at std boost Horns relocated for better air flow with a Horn from a Vag,Coil overs fitted

May 26th, 2012, 14:13	#10
RandomGuy New Member Last Online: Aug 7th, 2017 19:46 Join Date: May 2011 Location: Thurles	Dodgy CEM Hi all, I have an 02 S40 1.9D Sport. Had a similar problem, n/s dipped beam not working. Bought "fully tested" replacement CEM from Ebay. Fitted and now have n/s dipped beam but no main beams in any of the switch positions. Refitted original CEM and main beams returned. Contacted seller, who says CEM needs to be reprogrammed! Other contributors to this forum have bought CEM's from scrappies and not had to do this. Have I been conned or just unlucky? Surely whatever car it is from, the main beams should work? Can I just swap the n/s dipped beam relay to my old CEM?

Feb 11th, 2012, 20:21	#1
stuhandy New Member Last Online: Feb 13th, 2012 13:14 Join Date: Feb 2012 Location: York	Gatos, thanks for the reply. I have a 2002 v40 diesel, fog lights incl. If I need to programme the new CEM, how is this done? Iam new to this website

Feb 11th, 2012, 20:36	#2
stuhandy New Member Last Online: Feb 13th, 2012 13:14 Join Date: Feb 2012 Location: York	Thanks Gatos, I think I would like to keep this as simple as poss. Do you know if Siamblue still has there CEM and would they part with it?

Dec 11th, 2012, 21:18	#7
LizzieT New Member Last Online: Dec 22nd, 2012 20:45 Join Date: Nov 2012 Location: Sligo	Pretty sure it's the CEM, local auto-electrician diagnosed problem back to the CEM. Same thing happened a couple of years ago, no dipped headlights and volvo quoted €500+ for the part. Eventually got one in a breakers yard although it was on an S40 as not so many V40s sold over here. Although Volvo parts claimed that it was an unusual fault when I rang around beakers yard lots of the CEMs were missing! Part no. I have is 30621305 which is the one from the S40, unfortunately I dumped the original. By the way, great forum.

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