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#31
January 4th 11, 06:57 PM
posted to uk.rec.cars.maintenance,alt.autos.bmw
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ABS light is on
On Tue, 04 Jan 2011 10:51:17 -0800, Jeff Strickland wrote:
[...] > The only safe assumption is that if the light is on the system has > disabled itself. If the system turns out to work when you need it, count > that as Living Well and thank your lucky star. Yep. But the light being on doesn't mean the ABS *will not* work. Only that it might not, so shouldn't be relied on. Chris -- Remove prejudice to reply. 
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#32
January 4th 11, 06:58 PM
posted to uk.rec.cars.maintenance,alt.autos.bmw
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ABS light is on
On Tue, 04 Jan 2011 18:52:44 -0000, Chris Whelan
> wrote: > On Tue, 04 Jan 2011 10:49:12 -0800, Jeff Strickland wrote: > >> "Chris Whelan" > wrote in message >> ... >>> On Tue, 04 Jan 2011 09:04:38 -0800, Jeff Strickland wrote: >>> >>> [...] >>> >>>> The ABS light being on means the ABS will not work >>> >>> No it doesn't. >>> >>> It means the system "thinks" there is a fault which *might* mean the >>> ABS won't work. >>> >>> Chris >> >> >> Same thing. >> >> If you cannot rely on the system working, then it does not work even if >> there is random functionality. > > How is a working system with a malfunctioning fault indication the same > as a broken system? > > Chris > Because it's malfunctioning, that means it's broken. Besides you can't usefully tell that that's the failure made so you're going to have to treat it as broken.
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#33
January 4th 11, 06:58 PM
posted to uk.rec.cars.maintenance,alt.autos.bmw
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ABS light is on
On Tue, 04 Jan 2011 18:52:44 -0000, Chris Whelan
> wrote: > On Tue, 04 Jan 2011 10:49:12 -0800, Jeff Strickland wrote: > >> "Chris Whelan" > wrote in message >> ... >>> On Tue, 04 Jan 2011 09:04:38 -0800, Jeff Strickland wrote: >>> >>> [...] >>> >>>> The ABS light being on means the ABS will not work >>> >>> No it doesn't. >>> >>> It means the system "thinks" there is a fault which *might* mean the >>> ABS won't work. >>> >>> Chris >> >> >> Same thing. >> >> If you cannot rely on the system working, then it does not work even if >> there is random functionality. > > How is a working system with a malfunctioning fault indication the same > as a broken system? > > Chris > Because it's malfunctioning, that means it's broken. Besides you can't usefully tell that that's the failure made so you're going to have to treat it as broken.
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#34
January 4th 11, 06:58 PM
posted to uk.rec.cars.maintenance,alt.autos.bmw
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ABS light is on
"Chris Whelan" > wrote in message ... > On Tue, 04 Jan 2011 18:52:21 +0000, Duncan Wood wrote: > >> On Tue, 04 Jan 2011 18:48:31 -0000, Chris Whelan >> > wrote: >> >>> On Tue, 04 Jan 2011 18:35:19 +0000, Adrian wrote: >>> >>>> Chris Whelan > gurgled happily, >>>> sounding much like they were saying: >>>> >>>>>> The ABS light being on means the ABS will not work >>>> >>>>> No it doesn't. >>>>> >>>>> It means the system "thinks" there is a fault which *might* mean the >>>>> ABS won't work. >>>> >>>> I've never yet come across an ABS system that didn't fail-safe and >>>> turn off completely at the first sniff of a fault. >>> >>> The wiring loom to the dash gets damaged; a short from a live wire >>> connects to the ABS warning light... >>> >>> Chris >>> >>> >> Go on then ,when did you ever come across that? > > I never said I did. > > I have seen an ABS control module where the electronic switching for the > warning light had gone permanently closed though. > That's a corner case. You should consider the ABS system out of service if the light is on. And in the instance you supposedly saw, the controller had a short in it that turned the light on, and there's no way to ascertain out here in the trenches that the short hadn't taken out some other significant part of the controller function. The system design is that if the light is on, the system is off.
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#35
January 4th 11, 06:58 PM
posted to uk.rec.cars.maintenance,alt.autos.bmw
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ABS light is on
"Chris Whelan" > wrote in message ... > On Tue, 04 Jan 2011 18:52:21 +0000, Duncan Wood wrote: > >> On Tue, 04 Jan 2011 18:48:31 -0000, Chris Whelan >> > wrote: >> >>> On Tue, 04 Jan 2011 18:35:19 +0000, Adrian wrote: >>> >>>> Chris Whelan > gurgled happily, >>>> sounding much like they were saying: >>>> >>>>>> The ABS light being on means the ABS will not work >>>> >>>>> No it doesn't. >>>>> >>>>> It means the system "thinks" there is a fault which *might* mean the >>>>> ABS won't work. >>>> >>>> I've never yet come across an ABS system that didn't fail-safe and >>>> turn off completely at the first sniff of a fault. >>> >>> The wiring loom to the dash gets damaged; a short from a live wire >>> connects to the ABS warning light... >>> >>> Chris >>> >>> >> Go on then ,when did you ever come across that? > > I never said I did. > > I have seen an ABS control module where the electronic switching for the > warning light had gone permanently closed though. > That's a corner case. You should consider the ABS system out of service if the light is on. And in the instance you supposedly saw, the controller had a short in it that turned the light on, and there's no way to ascertain out here in the trenches that the short hadn't taken out some other significant part of the controller function. The system design is that if the light is on, the system is off.
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#36
January 4th 11, 07:01 PM
posted to uk.rec.cars.maintenance,alt.autos.bmw
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ABS light is on
"Chris Whelan" > wrote in message ... > On Tue, 04 Jan 2011 10:49:12 -0800, Jeff Strickland wrote: > >> "Chris Whelan" > wrote in message >> ... >>> On Tue, 04 Jan 2011 09:04:38 -0800, Jeff Strickland wrote: >>> >>> [...] >>> >>>> The ABS light being on means the ABS will not work >>> >>> No it doesn't. >>> >>> It means the system "thinks" there is a fault which *might* mean the >>> ABS won't work. >>> >>> Chris >> >> >> Same thing. >> >> If you cannot rely on the system working, then it does not work even if >> there is random functionality. > > How is a working system with a malfunctioning fault indication the same > as a broken system? > You're not laboring under the illusion that because the car stops then the ABS works, are you?
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#37
January 4th 11, 07:01 PM
posted to uk.rec.cars.maintenance,alt.autos.bmw
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ABS light is on
"Chris Whelan" > wrote in message ... > On Tue, 04 Jan 2011 10:49:12 -0800, Jeff Strickland wrote: > >> "Chris Whelan" > wrote in message >> ... >>> On Tue, 04 Jan 2011 09:04:38 -0800, Jeff Strickland wrote: >>> >>> [...] >>> >>>> The ABS light being on means the ABS will not work >>> >>> No it doesn't. >>> >>> It means the system "thinks" there is a fault which *might* mean the >>> ABS won't work. >>> >>> Chris >> >> >> Same thing. >> >> If you cannot rely on the system working, then it does not work even if >> there is random functionality. > > How is a working system with a malfunctioning fault indication the same > as a broken system? > You're not laboring under the illusion that because the car stops then the ABS works, are you?
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#38
January 4th 11, 07:02 PM
posted to uk.rec.cars.maintenance,alt.autos.bmw
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ABS light is on
On Tue, 04 Jan 2011 18:58:34 +0000, Duncan Wood wrote:
> On Tue, 04 Jan 2011 18:52:44 -0000, Chris Whelan > > wrote: > >> On Tue, 04 Jan 2011 10:49:12 -0800, Jeff Strickland wrote: >> >>> "Chris Whelan" > wrote in message >>> ... >>>> On Tue, 04 Jan 2011 09:04:38 -0800, Jeff Strickland wrote: >>>> >>>> [...] >>>> >>>>> The ABS light being on means the ABS will not work >>>> >>>> No it doesn't. >>>> >>>> It means the system "thinks" there is a fault which *might* mean the >>>> ABS won't work. >>>> >>>> Chris >>> >>> >>> Same thing. >>> >>> If you cannot rely on the system working, then it does not work even >>> if there is random functionality. >> >> How is a working system with a malfunctioning fault indication the same >> as a broken system? >> >> Chris >> >> > Because it's malfunctioning, that means it's broken. Besides you can't > usefully tell that that's the failure made so you're going to have to > treat it as broken. Yep, but it still doesn't mean what the OP said: "The ABS light being on means the ABS will not work" Chris -- Remove prejudice to reply.
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#39
January 4th 11, 07:02 PM
posted to uk.rec.cars.maintenance,alt.autos.bmw
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ABS light is on
On Tue, 04 Jan 2011 18:58:34 +0000, Duncan Wood wrote:
> On Tue, 04 Jan 2011 18:52:44 -0000, Chris Whelan > > wrote: > >> On Tue, 04 Jan 2011 10:49:12 -0800, Jeff Strickland wrote: >> >>> "Chris Whelan" > wrote in message >>> ... >>>> On Tue, 04 Jan 2011 09:04:38 -0800, Jeff Strickland wrote: >>>> >>>> [...] >>>> >>>>> The ABS light being on means the ABS will not work >>>> >>>> No it doesn't. >>>> >>>> It means the system "thinks" there is a fault which *might* mean the >>>> ABS won't work. >>>> >>>> Chris >>> >>> >>> Same thing. >>> >>> If you cannot rely on the system working, then it does not work even >>> if there is random functionality. >> >> How is a working system with a malfunctioning fault indication the same >> as a broken system? >> >> Chris >> >> > Because it's malfunctioning, that means it's broken. Besides you can't > usefully tell that that's the failure made so you're going to have to > treat it as broken. Yep, but it still doesn't mean what the OP said: "The ABS light being on means the ABS will not work" Chris -- Remove prejudice to reply.
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#40
January 4th 11, 07:03 PM
posted to uk.rec.cars.maintenance,alt.autos.bmw
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ABS light is on
On Tue, 04 Jan 2011 18:57:37 -0000, Chris Whelan
> wrote: > On Tue, 04 Jan 2011 10:51:17 -0800, Jeff Strickland wrote: > > [...] > >> The only safe assumption is that if the light is on the system has >> disabled itself. If the system turns out to work when you need it, count >> that as Living Well and thank your lucky star. > > Yep. > > But the light being on doesn't mean the ABS *will not* work. > > Only that it might not, so shouldn't be relied on. > > Chris > Except that the probability of might is almost certainly well in excess of 99%.
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