Bulb Failure Light

dab90 · May 25th, 2016, 15:42

Recently bought a 940 when ever I turn on the head light the bulb failure light comes but will go off if I flash the full beam lights is this normal. All the bulbs work on the car.

TonyS9 · May 25th, 2016, 19:52

No not normal, you probably have a bulb about to fail, a bad connection or poorly matched bulbs, or faulty low beam in one bulb.

bob12 · May 25th, 2016, 19:58

As above, but more likely a bad connection/earth.

dab90 · May 25th, 2016, 22:26

Thanks for the advice I check it over at the weekend.

James_N · May 26th, 2016, 11:38

My bulb fail light is constantly on after fitting two brand new Bosch brake light bulbs. Never did get to the bottom of it, I'll perhaps have to have another look.

tofufi · May 26th, 2016, 12:42

Mine (on a 740) has been on since fitting a pair of Bosch sidelamp bulbs to the front after a previous bulb failed.

My headlamps are also on dimly at all times (i.e. as DRLs) too.

Is there a way of narrowing down the causes to front or rear? All bulbs have been working fine for the last 1000+ miles, but the light remains on.

monkeh · May 26th, 2016, 12:52

HID upsets the brake failure circuit from time to time... Do you have HID?

NI_Volvo_Nut · May 26th, 2016, 14:16

Possible the bulb failure relay could be done. In the op's case I would suggest changing the bulbs on the low beam

TonyS9 · May 28th, 2016, 12:05

The dim dip head light are normal (at least on the 940).

To narrow down the problem circuit you can disconnect bulbs in pairs (left and right) or switch them off until the light goes out.

tofufi · May 28th, 2016, 17:46

It's been a while since mine didn't illuminate all the time... should the bulb failure warning light come on with ignition on (before engine started?)

May 25th, 2016, 15:42	#1
dab90 Junior Member Last Online: Jan 5th, 2024 23:11 Join Date: Dec 2014 Location: Macclesfield	Bulb Failure Light Recently bought a 940 when ever I turn on the head light the bulb failure light comes but will go off if I flash the full beam lights is this normal. All the bulbs work on the car.

May 26th, 2016, 11:38	#5
James_N VOC Member Last Online: Today 13:57 Join Date: Jan 2006 Location: Stafford View Photos By: James_N	My bulb fail light is constantly on after fitting two brand new Bosch brake light bulbs. Never did get to the bottom of it, I'll perhaps have to have another look. __________________ 1997 Volvo 940 LPT Celebration. 187,700 miles, manual.

May 26th, 2016, 12:52	#7
monkeh Pain in the backside Last Online: May 14th, 2024 08:02 Join Date: Mar 2007 Location: Newport	HID upsets the brake failure circuit from time to time... Do you have HID? __________________ 'Designed by a computer, built by a robot, and driven by a f***ing nutter' '09 XC70 SE - 2" lift, D5 225bhp, poverty spec '18 V60 Twin Engine R Design - 290bhp

May 26th, 2016, 14:16	#8
NI_Volvo_Nut Volvologist Last Online: Dec 6th, 2023 11:13 Join Date: Aug 2008 Location: Bangor - Norn Iron View Photos By: NI_Volvo_Nut	Possible the bulb failure relay could be done. In the op's case I would suggest changing the bulbs on the low beam __________________ What's the matter with the car I'm driving? Can't you tell that it's out of style? Should I get a set of white wall tires? Are you gonna cruise the miracle mile?

May 25th, 2016, 19:52	#2
TonyS9 Premier Member Last Online: Yesterday 20:10 Join Date: Jul 2009 Location: Holywood	No not normal, you probably have a bulb about to fail, a bad connection or poorly matched bulbs, or faulty low beam in one bulb.

May 25th, 2016, 19:58	#3
bob12 bob12 Last Online: Today 12:56 Join Date: Aug 2006 Location: Woking	As above, but more likely a bad connection/earth.

May 25th, 2016, 22:26	#4
dab90 Junior Member Last Online: Jan 5th, 2024 23:11 Join Date: Dec 2014 Location: Macclesfield	Thanks for the advice I check it over at the weekend.

May 26th, 2016, 12:42	#6
tofufi Premier Member Last Online: Today 12:24 Join Date: Sep 2014 Location: Bristol	Mine (on a 740) has been on since fitting a pair of Bosch sidelamp bulbs to the front after a previous bulb failed. My headlamps are also on dimly at all times (i.e. as DRLs) too. Is there a way of narrowing down the causes to front or rear? All bulbs have been working fine for the last 1000+ miles, but the light remains on.

May 28th, 2016, 12:05	#9
TonyS9 Premier Member Last Online: Yesterday 20:10 Join Date: Jul 2009 Location: Holywood	The dim dip head light are normal (at least on the 940). To narrow down the problem circuit you can disconnect bulbs in pairs (left and right) or switch them off until the light goes out.

May 28th, 2016, 17:46	#10
tofufi Premier Member Last Online: Today 12:24 Join Date: Sep 2014 Location: Bristol	It's been a while since mine didn't illuminate all the time... should the bulb failure warning light come on with ignition on (before engine started?)

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