S60 Electrics: - Alarm Siren Problems??

paulniv1 · Jan 8th, 2010, 17:18

This seems fairly common problem but it appears that my alarm siren has gone faulty as i'm getting an "Alarm Service Required" warning. This is also married with the hazards flashing.

I've read a couple of posts on this matter and there seems to be a replacement siren for about £80.00 but a garage suggested to just disconnect the siren. Credit crunch and all that!

My question is what feedback does the siren provide to the ECU/ alarm controller to indicate the fault? Is it a voltage output or maybe just a fault signal??

My thoughts where to maybe link out the fault/ feedback signal so the alarm service stopped appearing on start up??

Not sure if i'm well off the mark but it's just a thought...

All replies would be apprieciated.

Cheers...

Chris_Rogers · Jan 8th, 2010, 20:42

If only things were that simple.

The siren is connected to the cars computer (CAN) network, it will notice it's missing and the alarm will remain, no easy way round this.

dave1965 · Jan 10th, 2010, 09:37

I have this problem.Simply pull the fuse for the siren.It is clearly marked on the fuse board cover.
You will still get the message on start up.The immobiliser still works so no worries there.I have been running my car like this for 6 months!!
Hope this helps you.

ukdido · Jan 10th, 2010, 13:18

Hi,see website http://www.matthewsvolvosite.com/for...p?f=11&t=17479

Dynosaur · Jan 11th, 2010, 10:29

http://www.volvoforums.org.uk/showth...ighlight=alarm

Jan 8th, 2010, 17:18	#1
paulniv1 New Member Last Online: Oct 26th, 2010 08:57 Join Date: Dec 2009 Location: Leeds	Alarm Siren Problems?? This seems fairly common problem but it appears that my alarm siren has gone faulty as i'm getting an "Alarm Service Required" warning. This is also married with the hazards flashing. I've read a couple of posts on this matter and there seems to be a replacement siren for about £80.00 but a garage suggested to just disconnect the siren. Credit crunch and all that! My question is what feedback does the siren provide to the ECU/ alarm controller to indicate the fault? Is it a voltage output or maybe just a fault signal?? My thoughts where to maybe link out the fault/ feedback signal so the alarm service stopped appearing on start up?? Not sure if i'm well off the mark but it's just a thought... All replies would be apprieciated. Cheers...

Jan 11th, 2010, 10:29	#5
Dynosaur GoldMember Last Online: Mar 10th, 2016 17:58 Join Date: Aug 2008 Location: SomewhereInTheSouthOfEngland	http://www.volvoforums.org.uk/showth...ighlight=alarm __________________ S80 D5-S manual (facelift) MY04 (avec V70 driver's seat)

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Jan 8th, 2010, 20:42	#2
Chris_Rogers VOC Member Last Online: Apr 10th, 2017 16:55 Join Date: Jan 1970 Location: South Kent Coast	If only things were that simple. The siren is connected to the cars computer (CAN) network, it will notice it's missing and the alarm will remain, no easy way round this.

Jan 10th, 2010, 09:37	#3
dave1965 Junior Member Last Online: May 13th, 2012 12:44 Join Date: Feb 2007 Location: langport	I have this problem.Simply pull the fuse for the siren.It is clearly marked on the fuse board cover. You will still get the message on start up.The immobiliser still works so no worries there.I have been running my car like this for 6 months!! Hope this helps you.

Jan 10th, 2010, 13:18	#4
ukdido Senior Member Last Online: Jan 3rd, 2020 15:15 Join Date: May 2009 Location: Basingstoke	Hi,see website http://www.matthewsvolvosite.com/for...p?f=11&t=17479

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