Flashing Immobiliser LED

Bigdogcasa · Jan 21st, 2009, 18:55

My battery went flat after a period of inactivity on my 1996 440 1.8SE . Recharged battery but now have a flashing LED. What does this mean and does it cause any problems, other than annoy the pants of me. Have searched the previous threads for this problem but nowhere does it tell you how to stop it.

Can anyone out there shed light on this and how to re-set.

B20F · Jan 21st, 2009, 19:42

Here you can download the user manual:
http://volvo480.northernscum.org.uk/...usermanual.pdf

vicpool · Jan 22nd, 2009, 12:29

I had this trouble when I bought my 1995 440. Alas, I disconnected it as it drove me mad as well. However this was not the end of the story as I had trouble with the immobiliser. (there seems to be no info available on this). Later the car packed up in the dark on a country lane! The breakdown man said he had experienced this before and cured it by removing the fuse and replacing it. I then had the immobiliser bypassed and never regretted it, however occasionally the central locking packs up ( all part of the same system). This is always cured by removing the fuse marked 'immobiliser keyless entry' and replacing it. This resets everything. I can only suggest you try this and see what happens. Good luck!

mamajam · May 31st, 2009, 20:04

Hi Vicpool,

I think I have a problem with my immobiliser too, as although my car runs it cuts out whilst driving. Have replaced alternator & battery (as was told that was problem) but it's still cutting out & realised that when the car first cut out the immobiliser light was flashing constantly. So am now thinking that it's causing the problem. So I've been searching everywhere online for some way of bypassing or disconnecting the immobiliser. Saw your advice above & was wondering how you got your immobiliser bypassed? Is it just by removing the fuse & replacing it as you state above?

Appreciate any input you have

cookie · Jun 3rd, 2009, 13:53

prise the bulb and surround out, there is a plug about 8-10" down the cable, disconnect it, and annoying flashing light is gone

mamajam · Jun 3rd, 2009, 19:32

That doesn't help me, the light is flashing to say there is a fault somewhere. Just disconnecting the bulb doesn not stop my car from cutting out! I need to know how to bypass or disconnect the immobiliser not take the bulb out! Thanks anyway.

Bigdogcasa · Jun 3rd, 2009, 21:40

Quote:

Originally Posted by cookie

prise the bulb and surround out, there is a plug about 8-10" down the cable, disconnect it, and annoying flashing light is gone

If all else fails will give this a go.

Thanks.

vicpool · Jul 2nd, 2009, 10:16

sorry to take so long replying. All I can say is that when the car cut out I took it to a vehicle electrics specialist in Chard. They eventually found that it was the immobiliser.(Apparently this is all behind the glove box). They bypassed the offending circuits that cuts out the fuel pump etc and it's never cut out since. A side effect is that the remote no longer works and as I said before sometimes the central locking stops working. My suggestion is that you take it to an electrics specialist (if you can find a good one) to do the same. Modern cars are too complicated, give me simplicity of design!
I hope this is of some help.

Jan 21st, 2009, 18:55	#1
Bigdogcasa Junior Member Last Online: Dec 16th, 2009 13:37 Join Date: Feb 2008 Location: stonehaven View Photos By: Bigdogcasa	Flashing Immobiliser LED My battery went flat after a period of inactivity on my 1996 440 1.8SE . Recharged battery but now have a flashing LED. What does this mean and does it cause any problems, other than annoy the pants of me. Have searched the previous threads for this problem but nowhere does it tell you how to stop it. Can anyone out there shed light on this and how to re-set.

Jan 21st, 2009, 19:42	#2
B20F Master Member Last Online: Jul 7th, 2016 21:43 Join Date: Mar 2007 Location: Zeist View Photos By: B20F	Here you can download the user manual: http://volvo480.northernscum.org.uk/...usermanual.pdf __________________

Jan 22nd, 2009, 12:29	#3
vicpool New Member Last Online: Jan 4th, 2018 12:08 Join Date: Nov 2008 Location: Ashford Middx	Flashing LED I had this trouble when I bought my 1995 440. Alas, I disconnected it as it drove me mad as well. However this was not the end of the story as I had trouble with the immobiliser. (there seems to be no info available on this). Later the car packed up in the dark on a country lane! The breakdown man said he had experienced this before and cured it by removing the fuse and replacing it. I then had the immobiliser bypassed and never regretted it, however occasionally the central locking packs up ( all part of the same system). This is always cured by removing the fuse marked 'immobiliser keyless entry' and replacing it. This resets everything. I can only suggest you try this and see what happens. Good luck!

May 31st, 2009, 20:04	#4
mamajam New Member Last Online: Jun 3rd, 2009 19:32 Join Date: May 2009 Location: Daventry	Hi Vicpool, I think I have a problem with my immobiliser too, as although my car runs it cuts out whilst driving. Have replaced alternator & battery (as was told that was problem) but it's still cutting out & realised that when the car first cut out the immobiliser light was flashing constantly. So am now thinking that it's causing the problem. So I've been searching everywhere online for some way of bypassing or disconnecting the immobiliser. Saw your advice above & was wondering how you got your immobiliser bypassed? Is it just by removing the fuse & replacing it as you state above? Appreciate any input you have

Jun 3rd, 2009, 13:53	#5
cookie Lord B on T5D5.org Last Online: May 3rd, 2024 11:37 Join Date: Nov 2006 Location: rochester	prise the bulb and surround out, there is a plug about 8-10" down the cable, disconnect it, and annoying flashing light is gone

Jun 3rd, 2009, 19:32	#6
mamajam New Member Last Online: Jun 3rd, 2009 19:32 Join Date: May 2009 Location: Daventry	That doesn't help me, the light is flashing to say there is a fault somewhere. Just disconnecting the bulb doesn not stop my car from cutting out! I need to know how to bypass or disconnect the immobiliser not take the bulb out! Thanks anyway.

Jul 2nd, 2009, 10:16	#8
vicpool New Member Last Online: Jan 4th, 2018 12:08 Join Date: Nov 2008 Location: Ashford Middx	sorry to take so long replying. All I can say is that when the car cut out I took it to a vehicle electrics specialist in Chard. They eventually found that it was the immobiliser.(Apparently this is all behind the glove box). They bypassed the offending circuits that cuts out the fuel pump etc and it's never cut out since. A side effect is that the remote no longer works and as I said before sometimes the central locking stops working. My suggestion is that you take it to an electrics specialist (if you can find a good one) to do the same. Modern cars are too complicated, give me simplicity of design! I hope this is of some help.

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