Volvo Community Forum. The Forums of the Volvo Owners Club

Forum Rules Volvo Owners Club About VOC Volvo Gallery Links Volvo History Volvo Press
Go Back   Volvo Owners Club Forum > "Technical Topics" > S40 / V40 '96-'04 General

Notices

S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004.

Information
  • VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
  • AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
  • AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

Fog Lights Not working

Views : 13728

Replies : 28

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old May 10th, 2010, 23:18   #1
gatos
Premier Member
 
gatos's Avatar
 

Last Online: Nov 15th, 2022 22:34
Join Date: Apr 2010
Location: London / Essex
Default Fog Lights Not working

My car is a 2002 1.9 diesel S40 Sport T4.

I have just noticed that my fog Lights are not working at all. I am lucky enough to have a second Volvo S40 2000 phase 2 and I just swapped the control unit/switches on the right hand side of the steering wheel but no luck either. Now it is possible that both units are not functioning properly, but the odds for that are a bit too high. I looked at the Haynes manual and it was ............ well useless. I also had a look at VADIS that a friend of a friend of a friend has but could not find any useful info there either. Obviously I have checked the fuses etc and all seem to be fine.

Any ideas what else can I look for. Is there a relay for the fog lights and if yes, where is it located?

I need your brains please.
gatos is offline   Reply With Quote
Old May 11th, 2010, 12:20   #2
Baffler
Premier Member
 
Baffler's Avatar
 

Last Online: Yesterday 18:18
Join Date: Dec 2002
Location: Co. Limerick, Ireland
Default

Hi Gatos,

As far as I know the front fogs are activated through the CEM (Central Electronic Module) and the relay is located within this unit. Is the rear fog light working? Before you go pulling out the CEM did you test the bulbs to see if they are lighting up ok? Sometimes a bulb filament can look ok but is broken in an obscure place...

There was a chap (Gav25 ?) on here a few weeks back who had a similar problem with the front fogs on a phase 1.5 S40. Turned out it was the CEM.
__________________
Liam...

'96 854 TDI SE, '99 V70 2.5D S, '05 C70 2.0T Collection, '05 S80 2.0T SE, '15 V70 D4 SE Lux Nav.
Baffler is offline   Reply With Quote
The Following User Says Thank You to Baffler For This Useful Post:
Old May 11th, 2010, 12:27   #3
gatos
Premier Member
 
gatos's Avatar
 

Last Online: Nov 15th, 2022 22:34
Join Date: Apr 2010
Location: London / Essex
Default

Thanks baffler. I checked bulbs and they are fine. I am going to use my spare CEM and see if it works. If not..... I will have to retrace the cables for faults.

Will let you know of the result tonight
gatos is offline   Reply With Quote
Old May 11th, 2010, 13:21   #4
grass hopper
Premier Member
 
grass hopper's Avatar
 

Last Online: Mar 18th, 2011 14:38
Join Date: May 2009
Location: grassmere!
Smile

had one with the same fault,was found to be a corroded wire under the radiator,a live feed was missing at the switch pack,i think also the front side lights and side markers stopped working also.
__________________
grass hopper is offline   Reply With Quote
Old May 14th, 2010, 01:23   #5
gatos
Premier Member
 
gatos's Avatar
 

Last Online: Nov 15th, 2022 22:34
Join Date: Apr 2010
Location: London / Essex
Default

Still havent had a chance to look into it. I looked around for any corroded cables but all seemed to be fine. I will try to replace the CEM this weekend and see if it makes a difference. The other thing I notice tonight was that none of the lights in the control unit/switches on the right hand side of the steering wheel are illuminated... More to investigate this weekend...
gatos is offline   Reply With Quote
Old May 17th, 2010, 19:31   #6
gatos
Premier Member
 
gatos's Avatar
 

Last Online: Nov 15th, 2022 22:34
Join Date: Apr 2010
Location: London / Essex
Default

OK this is getting more interesting now... Both high beams stopped working too......

I swaped the spare CEM I had but no difference. Which means that either both CEMs are faulty, or that I have a sort somewhere in the wiring.

Also when i pull the high beam lever towards me, there is no blue light coming up in the instrument panel.

Just to clarify something, when i engage the high beams, i can hear a click from the CEM. Does that mean the relay is functioning properly, or not necessarily?
gatos is offline   Reply With Quote
Old May 18th, 2010, 13:12   #7
gatos
Premier Member
 
gatos's Avatar
 

Last Online: Nov 15th, 2022 22:34
Join Date: Apr 2010
Location: London / Essex
Default

AND THE AWARD FOR THE DUMPEST VOLVOFORUMS USER GOES TOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO.....
.
.
.
.
.
.
GATOSSSSSSSSSSSSSSS

I got the high beam lights working again....... the fuse was blown but I was checking the wrong one and I was getting nowhere.

Only thing to do is to sort out the original problem which is the fog lights

I got a meter to check the various wires and will go ahead with it tonight..

Will keep you updated until I solve this bloody problem.
gatos is offline   Reply With Quote
The Following 3 Users Say Thank You to gatos For This Useful Post:
Old May 25th, 2010, 23:14   #8
gatos
Premier Member
 
gatos's Avatar
 

Last Online: Nov 15th, 2022 22:34
Join Date: Apr 2010
Location: London / Essex
Default

PROBLEM SOLVED

I just found out that either the PARKING LAMPS or POSITION lamps fuse (I can't remember which one) in the engine compartment was blown. Once I replaced it with a new fuse I got both fog lights on the front and the one on the back working fine. Very odd as the Fog lights fuse was fine. Thanks to the people who tried to help me. I hope this may help others too.
gatos is offline   Reply With Quote
The Following 6 Users Say Thank You to gatos For This Useful Post:
Old May 25th, 2010, 23:35   #9
Baffler
Premier Member
 
Baffler's Avatar
 

Last Online: Yesterday 18:18
Join Date: Dec 2002
Location: Co. Limerick, Ireland
Default

Good to hear you got it sorted
__________________
Liam...

'96 854 TDI SE, '99 V70 2.5D S, '05 C70 2.0T Collection, '05 S80 2.0T SE, '15 V70 D4 SE Lux Nav.
Baffler is offline   Reply With Quote
The Following User Says Thank You to Baffler For This Useful Post:
Old Nov 21st, 2013, 18:00   #10
Rhygan
New Member
 

Last Online: Nov 21st, 2013 18:04
Join Date: Nov 2013
Location: workington
Default

hey am having a problem with my front fogs checked fuses, bulbs, relays, cem, nothing even earth straps rubbed down must be erosion some were just cant find the problem, position lights work and and the rear works just dont know what to check next?
Rhygan is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 09:04.


Powered by vBulletin
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.