brake light

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Old 19 Dec 2008, 01:14 pm   #1 (permalink)
badgolferman
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Default brake light

Changed the front pads on my 1997 Camry LE this past Sunday. While I
had someone to help me I decided to bleed the brake system also. After
everything was put back together I took the car for a spin to make sure
it would stop. I noticed the BRAKE light stayed on despite the
Emergency Brake being down and everything else seeming fine. I
rechecked all fittings and reseated the electrical connector on the
master cylinder but it wouldn't go away.

I had sprayed Purple Power and Brake Cleaner in areas of the engine
compartment and wheel wells where brake fluid had spilled. I was
hoping that wasn't the culprit or that the seals in the master cylinder
went bad with the fresh new synthetic brake fluid.

Not having the time to mess with it anymore I drove down the road and
within a few miles the BRAKE light went out on its own. It hasn't
returned since.

I suspect I let the master cylinder reservoir get too low which tripped
the sensor. While bleeding the brakes the reservoir got to about half
full which is below the MIN line. Later when driving after 10 minutes
or so the sensor was reset. Does this sound plausible or was it
something else?
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Old 19 Dec 2008, 01:18 pm   #2 (permalink)
Ray O
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Default Re: brake light


"badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in message
news:xn0fz3yrs8r7xl008@reader.motzarella.org...
> Changed the front pads on my 1997 Camry LE this past Sunday. While I
> had someone to help me I decided to bleed the brake system also. After
> everything was put back together I took the car for a spin to make sure
> it would stop. I noticed the BRAKE light stayed on despite the
> Emergency Brake being down and everything else seeming fine. I
> rechecked all fittings and reseated the electrical connector on the
> master cylinder but it wouldn't go away.
>
> I had sprayed Purple Power and Brake Cleaner in areas of the engine
> compartment and wheel wells where brake fluid had spilled. I was
> hoping that wasn't the culprit or that the seals in the master cylinder
> went bad with the fresh new synthetic brake fluid.
>
> Not having the time to mess with it anymore I drove down the road and
> within a few miles the BRAKE light went out on its own. It hasn't
> returned since.
>
> I suspect I let the master cylinder reservoir get too low which tripped
> the sensor. While bleeding the brakes the reservoir got to about half
> full which is below the MIN line. Later when driving after 10 minutes
> or so the sensor was reset. Does this sound plausible or was it
> something else?


There are two conditions that illuminate the brake warning light other than
a problem with the warning light circuit. One is that the parking brake is
engaged, and the other is a low brake fluid level. There is a float in the
cap for the brake fluid reservoir, and when the brake fluid level is low,
the float drops and turns on the light. Topping off the brake fluid should
turn the light off.
--

Ray O
(correct punctuation to reply)


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Old 19 Dec 2008, 01:30 pm   #3 (permalink)
badgolferman
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Default Re: brake light

Ray O wrote:

>
>"badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in message
>news:xn0fz3yrs8r7xl008@reader.motzarella.org...
>>Changed the front pads on my 1997 Camry LE this past Sunday. While
>>I had someone to help me I decided to bleed the brake system also.
>>After everything was put back together I took the car for a spin to
>>make sure it would stop. I noticed the BRAKE light stayed on
>>despite the Emergency Brake being down and everything else seeming
>>fine. I rechecked all fittings and reseated the electrical
>>connector on the master cylinder but it wouldn't go away.
>>
>>I had sprayed Purple Power and Brake Cleaner in areas of the engine
>>compartment and wheel wells where brake fluid had spilled. I was
>>hoping that wasn't the culprit or that the seals in the master
>>cylinder went bad with the fresh new synthetic brake fluid.
>>
>>Not having the time to mess with it anymore I drove down the road
>>and within a few miles the BRAKE light went out on its own. It
>>hasn't returned since.
>>
>>I suspect I let the master cylinder reservoir get too low which
>>tripped the sensor. While bleeding the brakes the reservoir got to
>>about half full which is below the MIN line. Later when driving
>>after 10 minutes or so the sensor was reset. Does this sound
>>plausible or was it something else?

>
>There are two conditions that illuminate the brake warning light
>other than a problem with the warning light circuit. One is that the
>parking brake is engaged, and the other is a low brake fluid level.
>There is a float in the cap for the brake fluid reservoir, and when
>the brake fluid level is low, the float drops and turns on the light.
>Topping off the brake fluid should turn the light off.


The reservoir was topped off after bleeding the system but it took
nearly 10 minutes or so of the car being on before the light went out.
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Old 19 Dec 2008, 02:03 pm   #4 (permalink)
Hachiroku ハチロク
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Default Re: brake light

On Fri, 19 Dec 2008 19:30:59 +0000, badgolferman wrote:

> Ray O wrote:
>
>>
>>"badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in message
>>news:xn0fz3yrs8r7xl008@reader.motzarella.org.. .
>>>Changed the front pads on my 1997 Camry LE this past Sunday. While
>>>I had someone to help me I decided to bleed the brake system also.
>>>After everything was put back together I took the car for a spin to
>>>make sure it would stop. I noticed the BRAKE light stayed on
>>>despite the Emergency Brake being down and everything else seeming
>>>fine. I rechecked all fittings and reseated the electrical
>>>connector on the master cylinder but it wouldn't go away.
>>>
>>>I had sprayed Purple Power and Brake Cleaner in areas of the engine
>>>compartment and wheel wells where brake fluid had spilled. I was
>>>hoping that wasn't the culprit or that the seals in the master
>>>cylinder went bad with the fresh new synthetic brake fluid.
>>>
>>>Not having the time to mess with it anymore I drove down the road
>>>and within a few miles the BRAKE light went out on its own. It
>>>hasn't returned since.
>>>
>>>I suspect I let the master cylinder reservoir get too low which
>>>tripped the sensor. While bleeding the brakes the reservoir got to
>>>about half full which is below the MIN line. Later when driving
>>>after 10 minutes or so the sensor was reset. Does this sound
>>>plausible or was it something else?

>>
>>There are two conditions that illuminate the brake warning light
>>other than a problem with the warning light circuit. One is that the
>>parking brake is engaged, and the other is a low brake fluid level.
>>There is a float in the cap for the brake fluid reservoir, and when
>>the brake fluid level is low, the float drops and turns on the light.
>>Topping off the brake fluid should turn the light off.

>
> The reservoir was topped off after bleeding the system but it took
> nearly 10 minutes or so of the car being on before the light went out.


I've had that happen after flushing the brakes, too.



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Old 19 Dec 2008, 05:58 pm   #5 (permalink)
Ray O
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Default Re: brake light


"badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in message
news:xn0fz3z6j9cn5x009@reader.motzarella.org...
> Ray O wrote:
>
>>
>>"badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in message
>>news:xn0fz3yrs8r7xl008@reader.motzarella.org.. .
>>>Changed the front pads on my 1997 Camry LE this past Sunday. While
>>>I had someone to help me I decided to bleed the brake system also.
>>>After everything was put back together I took the car for a spin to
>>>make sure it would stop. I noticed the BRAKE light stayed on
>>>despite the Emergency Brake being down and everything else seeming
>>>fine. I rechecked all fittings and reseated the electrical
>>>connector on the master cylinder but it wouldn't go away.
>>>
>>>I had sprayed Purple Power and Brake Cleaner in areas of the engine
>>>compartment and wheel wells where brake fluid had spilled. I was
>>>hoping that wasn't the culprit or that the seals in the master
>>>cylinder went bad with the fresh new synthetic brake fluid.
>>>
>>>Not having the time to mess with it anymore I drove down the road
>>>and within a few miles the BRAKE light went out on its own. It
>>>hasn't returned since.
>>>
>>>I suspect I let the master cylinder reservoir get too low which
>>>tripped the sensor. While bleeding the brakes the reservoir got to
>>>about half full which is below the MIN line. Later when driving
>>>after 10 minutes or so the sensor was reset. Does this sound
>>>plausible or was it something else?

>>
>>There are two conditions that illuminate the brake warning light
>>other than a problem with the warning light circuit. One is that the
>>parking brake is engaged, and the other is a low brake fluid level.
>>There is a float in the cap for the brake fluid reservoir, and when
>>the brake fluid level is low, the float drops and turns on the light.
>>Topping off the brake fluid should turn the light off.

>
> The reservoir was topped off after bleeding the system but it took
> nearly 10 minutes or so of the car being on before the light went out.


The float was probably hung up or it is getting saturated. Next time that
happens, remove the lid to the master cylinder reservoir, invert it so the
float on the switch falls against the cover, the replace the cover.

--

Ray O
(correct punctuation to reply)


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