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From: KG on 28 Jul 2010 08:46
On Wed, 28 Jul 2010 00:01:54 -0500, "Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote:

>
>"Steve W." <csr684(a)NOTyahoo.com> wrote in message
>news:i2o9cf$q0v$1(a)speranza.aioe.org...
>> brassplyer wrote:
>>> Saw two simultaneous and previously unencountered things occur today
>>> on my '89 Toyota Cressida.
>>>
>>> First I noticed that my cruise control doesn't work though the green
>>> "cruise" indicator is going on. Second, discovered that my brake
>>> lights are staying on, with all lights turned off and the vehicle off.
>>> Right now I've got the battery disconnected.
>>>
>>> What will cause either/both of these? Obviously I can't keep
>>> disconnecting my battery every time I park the car and I need my brake
>>> lights to work.
>>>
>>> Thanks for all input.
>>>
>>
>> Brake light switch is stuck on. Not a hard fix. It's attached to the
>> brake pedal arm up behind the dash area. Simple to R&R with a new one.
>>
>> --
>> Steve W.
>> (\___/)
>> (='.'=)
>> (")_(")
>
>It is easy to check for continuity on the brake light switch with an ohm
>meter. The switch should be open when the pedal is not depressed and closed
>with the pedal is depressed. Before you remove the old switch, check the
>adjustment so that you can get the replacement switch close before you
>install it and then fine tune it after it is in place. Also make sure that
>the brake pedal is retracting fully.
>
>If the switch is good, check for a short to ground somewhere in the circuit,
>starting in the trunk.

Warning !!! be sure all power is removed is removed from the brake switch, battery disconnected or
wires removed from switch, before using the ohm meter. Most meters will be damaged if power is
applied while in ohm, resistance, range. Meters supply there own power to check resistance.
*****************
Thank You kgsAT(a)msbx.net


To reply to this email please remove the AT
after the kgs in the reply to address as shown above.

"Can't we all just get along"
Quote from Brett G
From: Scott Dorsey on 28 Jul 2010 09:30
brassplyer <brassplyer(a)yahoo.com> wrote:
>Saw two simultaneous and previously unencountered things occur today
>on my '89 Toyota Cressida.
>
>First I noticed that my cruise control doesn't work though the green
>"cruise" indicator is going on. Second, discovered that my brake
>lights are staying on, with all lights turned off and the vehicle off.
>Right now I've got the battery disconnected.

The line to the brake lights is telling the cruise control system to shut
down, as if you had pressed the brake.

>What will cause either/both of these? Obviously I can't keep
>disconnecting my battery every time I park the car and I need my brake
>lights to work.

I'd first check the brake light switch... is it stuck? Is it broken?
Is it properly adjusted? It should be mounted on the brake pedal assembly
somewhere. If that tests okay with a meter and isn't obviously bad,
start checking wiring.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
From: Jeff Strickland on 28 Jul 2010 09:52

"brassplyer" <brassplyer(a)yahoo.com> wrote in message
news:d60ea811-f45c-4c42-ba57-9e9b964bb8f6(a)j8g2000yqd.googlegroups.com...
> Saw two simultaneous and previously unencountered things occur today
> on my '89 Toyota Cressida.
>
> First I noticed that my cruise control doesn't work though the green
> "cruise" indicator is going on. Second, discovered that my brake
> lights are staying on, with all lights turned off and the vehicle off.
> Right now I've got the battery disconnected.
>
> What will cause either/both of these? Obviously I can't keep
> disconnecting my battery every time I park the car and I need my brake
> lights to work.
>
> Thanks for all input.
>



I'd start my search at the brake light switch mounted to the brake pedal.
This switch causes the brake lights to come on, and it disables the Cruise
Control.

My guess is that the switch is stuck in the position as if you were applying
the brakes.




From: Jeff Strickland on 28 Jul 2010 10:05

"Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote in message
news:i2odk6$fnp$2(a)news.eternal-september.org...
>
> "Steve W." <csr684(a)NOTyahoo.com> wrote in message
> news:i2o9cf$q0v$1(a)speranza.aioe.org...
>> brassplyer wrote:
>>> Saw two simultaneous and previously unencountered things occur today
>>> on my '89 Toyota Cressida.
>>>
>>> First I noticed that my cruise control doesn't work though the green
>>> "cruise" indicator is going on. Second, discovered that my brake
>>> lights are staying on, with all lights turned off and the vehicle off.
>>> Right now I've got the battery disconnected.
>>>
>>> What will cause either/both of these? Obviously I can't keep
>>> disconnecting my battery every time I park the car and I need my brake
>>> lights to work.
>>>
>>> Thanks for all input.
>>>
>>
>> Brake light switch is stuck on. Not a hard fix. It's attached to the
>> brake pedal arm up behind the dash area. Simple to R&R with a new one.
>>
>> --
>> Steve W.
>> (\___/)
>> (='.'=)
>> (")_(")
>
> It is easy to check for continuity on the brake light switch with an ohm
> meter. The switch should be open when the pedal is not depressed and
> closed with the pedal is depressed. Before you remove the old switch,
> check the adjustment so that you can get the replacement switch close
> before you install it and then fine tune it after it is in place. Also
> make sure that the brake pedal is retracting fully.
>
> If the switch is good, check for a short to ground somewhere in the
> circuit, starting in the trunk.
> --



A shorted wire will blow the fuse, not turn the lights on. The Cruise should
be enabled in this condition also, not disabled.





From: C. E. White on 28 Jul 2010 10:58

"Jeff Strickland" <crwlrjeff(a)yahoo.com> wrote in message
news:i2pdis$akl$1(a)news.eternal-september.org...
>
> "Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote in message
> news:i2odk6$fnp$2(a)news.eternal-september.org...
>>
>> "Steve W." <csr684(a)NOTyahoo.com> wrote in message
>> news:i2o9cf$q0v$1(a)speranza.aioe.org...
>>> brassplyer wrote:
>>>> Saw two simultaneous and previously unencountered things occur today
>>>> on my '89 Toyota Cressida.
>>>>
>>>> First I noticed that my cruise control doesn't work though the green
>>>> "cruise" indicator is going on. Second, discovered that my brake
>>>> lights are staying on, with all lights turned off and the vehicle off.
>>>> Right now I've got the battery disconnected.
>>>>
>>>> What will cause either/both of these? Obviously I can't keep
>>>> disconnecting my battery every time I park the car and I need my brake
>>>> lights to work.
>>>>
>>>> Thanks for all input.
>>>>
>>>
>>> Brake light switch is stuck on. Not a hard fix. It's attached to the
>>> brake pedal arm up behind the dash area. Simple to R&R with a new one.
>>>
>>> --
>>> Steve W.
>>> (\___/)
>>> (='.'=)
>>> (")_(")
>>
>> It is easy to check for continuity on the brake light switch with an ohm
>> meter. The switch should be open when the pedal is not depressed and
>> closed with the pedal is depressed. Before you remove the old switch,
>> check the adjustment so that you can get the replacement switch close
>> before you install it and then fine tune it after it is in place. Also
>> make sure that the brake pedal is retracting fully.
>>
>> If the switch is good, check for a short to ground somewhere in the
>> circuit, starting in the trunk.
>> --
>
>
>
> A shorted wire will blow the fuse, not turn the lights on. The Cruise
> should be enabled in this condition also, not disabled.

Why do you think that? It depends on the method used to activate the brake
lights and crusie control. I agree that for the common brake light circuits
I have seen, shorting the positive 12V feed to the lights should blow a
fuse. But blowing this fuse muight also cause the cruise control not to work
depending on how things are set up. Also, I can imagine a system where the
brake lights are turned on by the car's computer. Such a system might use
the brake light switch as a signaling device that signals the computer that
the brake pedal is engaged by connecting a signal line to gorund. In such a
system, if the signal line was shorted, the brake lines might turn on
without blowing a fuse.

Probably you are right about a shorted wire in the trunk blowing a fuse, but
I am not sure that would also enable the cruise control. And given some of
the light monitoring systems used in some cars, I am not sure what a short
might actually do.

Ed


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