Low Beam Head lights not working

tsc1015 · Post by **tsc1015** » 16 Jan 2010, 13:35

Along with my heat problem, I also finally fixed my headlight problem. I was unable to source the relays I needed so I went to the junk yard and got a used CEM, $40 bucks and it fixed the issue. So besides some dash lights that I need to replace and a passanger headlight assemlby that needs to be repaired the car is good to go.

JPinSanDiego · Post by **JPinSanDiego** » 07 Dec 2015, 15:27

Did you have to take the ECM unit to a Volvo dealer to have it "programmed" to run with your car? I have a 2003 S40 and am beginning to worry that these unavoidable dealer charges are going to make the car extremely expensive to run.

Acminer2 · Post by **Acminer2** » 19 Jan 2016, 14:12

Did the CEM board have to have a number code that matched your car? I'm having the same issue and can't find a board

jakeman1111 · Post by **jakeman1111** » 31 Jan 2016, 17:51

CEM's purported to be refurbished on eBay are depicted with the label intact. Any one who has dug into a S\V 40 CEM knows that the label will most certainly be damaged during the process. So what constitutes "refurbished"? Wiping it down with Armor All?
Plenty of info out there that would tell you about the mechanics of de soldering and the soldering in of new board components.

Assuming you have Amaz.... Prime you can collect the following for around $60 US.

solder
new bulb connecters (the ones you have are probably baked/crispy/fragile)
shrink wrap tubing (assuming you would be replacing bulb connectors)
Desk top magnifier (small)
solder sucker
couple of new low beam relays
New light bulbs
and some 15A fuses (if needed).

Go ahead, you can do it, take on "THE MAN" and beat him at his own game and at the same time do a REAL refurbishment of your CEM..

derrick_d3 · Post by **derrick_d3** » 04 Mar 2016, 12:51

I was wondering if you ever found a way to fix your lights without buying the cem?

heis2201 · Post by **heis2201** » 15 Mar 2016, 14:58

Hi there,
I am facing the same issue, and was also wondering if someone has found a source for those relays?

heis2201 · Post by **heis2201** » 15 Mar 2016, 15:09

I may have found the relay...

http://uk.rs-online.com/web/p/non-latch ... 3238373626

Link from here: http://www.volvoforums.org.uk/showthrea ... 584&page=3

heis2201 · Post by **heis2201** » 16 Mar 2016, 09:46

Another question I do have: Would changing the ECM mess up my electronic key?

heis2201 · Post by **heis2201** » 16 Mar 2016, 09:49

For those ordering the relay in the US: http://www.alliedelec.com/search/result ... rm=jsm1125

I had to order minimum quantity of 5, meaning I do have 3 spare, just in case you are interested.

markgeorge5831 · Post by **markgeorge5831** » 17 May 2021, 00:25

Hi members in my case i did replace this xenon ballast and it has fixed my headlight issue https://xenons4u.co.uk/1307329115-xenon ... -unit.html

Low Beam Head lights not working

Re: Low Beam Head lights not working