1999 Camry ABS problem

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Old 28 Jul 2011, 08:47 pm   #1 (permalink)
Sharx3335
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Default 1999 Camry ABS problem

Yesterday, my 99 Camry (153,000 km), presented with the following
problem: the ABS error indicator started flashing. Every few
minutes it would stop for a minute or two, but always started
again. The regular brakes worked fine--I didn't force a test on the
ABS by standing on the brake pedal. No other error lights. I
dropped it off at my long-time repair shop which specializes in
brakes, suspension, and steering. I fully expected to hear that a
wheel speed sensor or even the ABS ECU had "gone south". Or the
wiring, even.

Next day, the service manager called, indicating that he had
scanned the codes, finding NOTHING. He took the vehicle out for a
test drive and the ABS worked fine. Then he showed me a jumper pin
(somewhat "U" shaped) that he had found stuck in the "jack" where
one connects the code scanner. He said that his documentation said
that to stop a flashing ABS condition to remove that pin. Well, NO
ONE else has had access to the car for at least 8 months. How that
pin got there is a mystery. The ABS light, aside from going on for
a second or so when the car is started, has never been a problem
before. He waived all charges for the test drive, safety
inspection, etc.. He and that shop have been in business, with a
good record, for over 20 years. He COULD have scammed be big time
for ABS repairs. I have the car back now and everything appears
normal. I've been the only owner of that vehicle. The only other
driver is my wife.
Ideas???

David B.

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Old 28 Jul 2011, 11:04 pm   #2 (permalink)
Hachiroku
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Default Re: 1999 Camry ABS problem

On Thu, 28 Jul 2011 19:47:19 -0600, Sharx3335 wrote:

> Yesterday, my 99 Camry (153,000 km), presented with the following
> problem: the ABS error indicator started flashing. Every few
> minutes it would stop for a minute or two, but always started
> again. The regular brakes worked fine--I didn't force a test on the
> ABS by standing on the brake pedal. No other error lights. I
> dropped it off at my long-time repair shop which specializes in
> brakes, suspension, and steering. I fully expected to hear that a
> wheel speed sensor or even the ABS ECU had "gone south". Or the
> wiring, even.
>
> Next day, the service manager called, indicating that he had
> scanned the codes, finding NOTHING. He took the vehicle out for a
> test drive and the ABS worked fine. Then he showed me a jumper pin
> (somewhat "U" shaped) that he had found stuck in the "jack" where
> one connects the code scanner. He said that his documentation said
> that to stop a flashing ABS condition to remove that pin. Well, NO
> ONE else has had access to the car for at least 8 months. How that
> pin got there is a mystery. The ABS light, aside from going on for
> a second or so when the car is started, has never been a problem
> before. He waived all charges for the test drive, safety
> inspection, etc.. He and that shop have been in business, with a
> good record, for over 20 years. He COULD have scammed be big time
> for ABS repairs. I have the car back now and everything appears
> normal. I've been the only owner of that vehicle. The only other
> driver is my wife.
> Ideas???
>
> David B.



Tire pressure? On the newer cars, the ABS is used as a tire pressure
sensor, because as one tire (or more) goes soft, it plays havoc with the
ABS system, so they use it to tell you when a tire is down.

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Old 29 Jul 2011, 02:31 am   #3 (permalink)
Sharx3335
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Default Re: 1999 Camry ABS problem



"Hachiroku" <Trueno@e86.GTS> wrote in message
news:4e322331$0$26205$c3e8da3$c14f6927@news.astraw eb.com...
> On Thu, 28 Jul 2011 19:47:19 -0600, Sharx3335 wrote:
>
>> Yesterday, my 99 Camry (153,000 km), presented with the
>> following
>> problem: the ABS error indicator started flashing. Every few
>> minutes it would stop for a minute or two, but always started
>> again. The regular brakes worked fine--I didn't force a test on
>> the
>> ABS by standing on the brake pedal. No other error lights. I
>> dropped it off at my long-time repair shop which specializes in
>> brakes, suspension, and steering. I fully expected to hear that
>> a
>> wheel speed sensor or even the ABS ECU had "gone south". Or the
>> wiring, even.
>>
>> Next day, the service manager called, indicating that he had
>> scanned the codes, finding NOTHING. He took the vehicle out for
>> a
>> test drive and the ABS worked fine. Then he showed me a jumper
>> pin
>> (somewhat "U" shaped) that he had found stuck in the "jack"
>> where
>> one connects the code scanner. He said that his documentation
>> said
>> that to stop a flashing ABS condition to remove that pin. Well,
>> NO
>> ONE else has had access to the car for at least 8 months. How
>> that
>> pin got there is a mystery. The ABS light, aside from going on
>> for
>> a second or so when the car is started, has never been a problem
>> before. He waived all charges for the test drive, safety
>> inspection, etc.. He and that shop have been in business, with a
>> good record, for over 20 years. He COULD have scammed be big
>> time
>> for ABS repairs. I have the car back now and everything appears
>> normal. I've been the only owner of that vehicle. The only other
>> driver is my wife.
>> Ideas???
>>
>> David B.

>
>
> Tire pressure? On the newer cars, the ABS is used as a tire
> pressure
> sensor, because as one tire (or more) goes soft, it plays havoc
> with the
> ABS system, so they use it to tell you when a tire is down.
>


Hmm. Thanks for that info. I shall check the pressures.























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Old 29 Jul 2011, 02:36 am   #4 (permalink)
Sharx3335
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Default Re: 1999 Camry ABS problem



"Sharx3335" <sharx335@hotmail.com> wrote in message
news:j0tnk6$usp$1@speranza.aioe.org...
>
>
> "Hachiroku" <Trueno@e86.GTS> wrote in message
> news:4e322331$0$26205$c3e8da3$c14f6927@news.astraw eb.com...
>> On Thu, 28 Jul 2011 19:47:19 -0600, Sharx3335 wrote:
>>
>>> Yesterday, my 99 Camry (153,000 km), presented with the
>>> following
>>> problem: the ABS error indicator started flashing. Every few
>>> minutes it would stop for a minute or two, but always started
>>> again. The regular brakes worked fine--I didn't force a test on
>>> the
>>> ABS by standing on the brake pedal. No other error lights. I
>>> dropped it off at my long-time repair shop which specializes in
>>> brakes, suspension, and steering. I fully expected to hear that
>>> a
>>> wheel speed sensor or even the ABS ECU had "gone south". Or the
>>> wiring, even.
>>>
>>> Next day, the service manager called, indicating that he had
>>> scanned the codes, finding NOTHING. He took the vehicle out for
>>> a
>>> test drive and the ABS worked fine. Then he showed me a jumper
>>> pin
>>> (somewhat "U" shaped) that he had found stuck in the "jack"
>>> where
>>> one connects the code scanner. He said that his documentation
>>> said
>>> that to stop a flashing ABS condition to remove that pin. Well,
>>> NO
>>> ONE else has had access to the car for at least 8 months. How
>>> that
>>> pin got there is a mystery. The ABS light, aside from going on
>>> for
>>> a second or so when the car is started, has never been a
>>> problem
>>> before. He waived all charges for the test drive, safety
>>> inspection, etc.. He and that shop have been in business, with
>>> a
>>> good record, for over 20 years. He COULD have scammed be big
>>> time
>>> for ABS repairs. I have the car back now and everything appears
>>> normal. I've been the only owner of that vehicle. The only
>>> other
>>> driver is my wife.
>>> Ideas???
>>>
>>> David B.

>>
>>
>> Tire pressure? On the newer cars, the ABS is used as a tire
>> pressure
>> sensor, because as one tire (or more) goes soft, it plays havoc
>> with the
>> ABS system, so they use it to tell you when a tire is down.
>>

>
> Hmm. Thanks for that info. I shall check the pressures.


Now, in another newsgroup, a poster has stated that Toyota put that
jumper in, at the time of manufacture, and, supposedly, it is
supposed to be only removed for testing, then, after testing, put
back into where it was before testing. Go figure!!!!!
























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