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  #1 (permalink)  
Old 26 Apr 2010, 06:43 am
Eddie G
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Default tire pressure monitor

When you rotate tires on a car with the pressure monitor, how does the
computer know that what was the front right is not the left rear?
Does the computer sensor know from what direction the signal is coming
from?
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  #2 (permalink)  
Old 26 Apr 2010, 02:32 pm
Tegger
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Default Re: tire pressure monitor

Eddie G <egoldberg@amh.org> wrote in news:88581e2a-a7c9-4d5b-93a0-
426618b245fe@r1g2000yqb.googlegroups.com:

> When you rotate tires on a car with the pressure monitor, how does the
> computer know that what was the front right is not the left rear?
> Does the computer sensor know from what direction the signal is coming
> from?
>



The computer only knows the specific tire on 2006-and-under models. Those
vehicles had "initiator" type sensors that communicated with little
transponders above each wheel. Those transponders then talked to the TPMS
control unit.

2007+ vehicles have "initiator-less" sensors. With this system, the
computer has no information on which specific tire is low. You must check
the pressure in /all/ tires, including the spare (if it has a sensor).


--
Tegger
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  #3 (permalink)  
Old 03 May 2010, 11:43 pm
Scott
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Default Re: tire pressure monitor

incorect. My TL shows each tire in the MID display (2008).
"Tegger" <invalid@invalid.inv> wrote in message
news:Xns9D669E03076F3tegger@208.90.168.18...
> Eddie G <egoldberg@amh.org> wrote in news:88581e2a-a7c9-4d5b-93a0-
> 426618b245fe@r1g2000yqb.googlegroups.com:
>
>> When you rotate tires on a car with the pressure monitor, how does the
>> computer know that what was the front right is not the left rear?
>> Does the computer sensor know from what direction the signal is coming
>> from?
>>

>
>
> The computer only knows the specific tire on 2006-and-under models. Those
> vehicles had "initiator" type sensors that communicated with little
> transponders above each wheel. Those transponders then talked to the TPMS
> control unit.
>
> 2007+ vehicles have "initiator-less" sensors. With this system, the
> computer has no information on which specific tire is low. You must check
> the pressure in /all/ tires, including the spare (if it has a sensor).
>
>
> --
> Tegger



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  #4 (permalink)  
Old 04 May 2010, 05:31 pm
Tegger
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Default Re: tire pressure monitor

"Scott" <scottw2000@gmail.com> wrote in
news:Q9ednYaC8aeSO0LWnZ2dnUVZ_g2dnZ2d@earthlink.co m:

> "Tegger" <invalid@invalid.inv> wrote in message
> news:Xns9D669E03076F3tegger@208.90.168.18...

..
>>
>> 2007+ vehicles have "initiator-less" sensors. With this system, the
>> computer has no information on which specific tire is low. You must
>> check the pressure in /all/ tires, including the spare (if it has a
>> sensor).
>>

>
>
> incorect. My TL shows each tire in the MID display (2008).




That's just the tire /number/, not the tire /location/.

Where is that tire number on the four corners of the car? The
initiator-less TPMS does not know. That's why you need to check all four.


--
Tegger
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  #5 (permalink)  
Old 05 May 2010, 07:23 am
BF
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Default Re: tire pressure monitor

2010 RDX graphically shows 4 tires and their corresponding pressures

"Tegger" <invalid@invalid.inv> wrote in message
news:Xns9D6EBC60E9B92tegger@208.90.168.18...
> "Scott" <scottw2000@gmail.com> wrote in
> news:Q9ednYaC8aeSO0LWnZ2dnUVZ_g2dnZ2d@earthlink.co m:
>
>> "Tegger" <invalid@invalid.inv> wrote in message
>> news:Xns9D669E03076F3tegger@208.90.168.18...

> .
>>>
>>> 2007+ vehicles have "initiator-less" sensors. With this system, the
>>> computer has no information on which specific tire is low. You must
>>> check the pressure in /all/ tires, including the spare (if it has a
>>> sensor).
>>>

>>
>>
>> incorect. My TL shows each tire in the MID display (2008).

>
>
>
> That's just the tire /number/, not the tire /location/.
>
> Where is that tire number on the four corners of the car? The
> initiator-less TPMS does not know. That's why you need to check all four.
>
>
> --
> Tegger



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  #6 (permalink)  
Old 05 May 2010, 11:40 am
Tegger
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Default Re: tire pressure monitor

"BF" <bf@block.net> wrote in
news:431d4$4be1634c$4831cbd9$28869@FUSE.NET:

> "Tegger" <invalid@invalid.inv> wrote in message
> news:Xns9D6EBC60E9B92tegger@208.90.168.18...
>> "Scott" <scottw2000@gmail.com> wrote in
>> news:Q9ednYaC8aeSO0LWnZ2dnUVZ_g2dnZ2d@earthlink.co m:
>>
>>> "Tegger" <invalid@invalid.inv> wrote in message
>>> news:Xns9D669E03076F3tegger@208.90.168.18...

>> .
>>>>
>>>> 2007+ vehicles have "initiator-less" sensors. With this system, the
>>>> computer has no information on which specific tire is low. You must
>>>> check the pressure in /all/ tires, including the spare (if it has a
>>>> sensor).
>>>>
>>>
>>>
>>> incorect. My TL shows each tire in the MID display (2008).

>>
>>
>>
>> That's just the tire /number/, not the tire /location/.
>>
>> Where is that tire number on the four corners of the car? The
>> initiator-less TPMS does not know. That's why you need to check all
>> four.
>>

>
>
> 2010 RDX graphically shows 4 tires and their corresponding pressures
>





OK, I made a mistake.

I just checked Honda's Techinfo site ( https://techinfo.honda.com ). I used
not to be able to get access to this site because it was for US-only. This
meant I had to rely on other documentation, which was not always complete.
Well, now Techinfo is available to Canadians as well, so I have access to
more info than before.

So, the upshot is that it looks like...

MOST 2007+ Honda models have initiator-less TPMS. Higher-end models (e.g.:
Odyssey Touring) have initiator-type TPMS.

ALL Acura models with TPMS (except for Civic-based vehicles) have
initiator-type TPMS.

Therefore, all (non-Civic) Acuras with TPMS are able to tell you
specifically which tire it is that's low, because they have a little
transponder above each specific wheel that communicates directly with the
sensor in that wheel.




--
Tegger
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  #7 (permalink)  
Old 05 May 2010, 08:06 pm
bob
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Default Re: tire pressure monitor

In article <Xns9D6F80DB56984tegger@208.90.168.18>, invalid@invalid.inv
says...
>

<snip>
> ALL Acura models with TPMS (except for Civic-based vehicles) have
> initiator-type TPMS.
>
> Therefore, all (non-Civic) Acuras with TPMS are able to tell you
> specifically which tire it is that's low, because they have a little
> transponder above each specific wheel that communicates directly with the
> sensor in that wheel.



Tegger,

Pardon my ignorance, but what are the Civic-based Acuras?

Thanks,
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  #8 (permalink)  
Old 06 May 2010, 07:07 am
Tegger
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Posts: n/a
Default Re: tire pressure monitor

bob <nottooslow42@yahoo.com> wrote in
news:MPG.264bd219c32e0d9c989781@news.eternal-september.org:

> In article <Xns9D6F80DB56984tegger@208.90.168.18>, invalid@invalid.inv
> says...
>>

> <snip>
>> ALL Acura models with TPMS (except for Civic-based vehicles) have
>> initiator-type TPMS.
>>
>> Therefore, all (non-Civic) Acuras with TPMS are able to tell you
>> specifically which tire it is that's low, because they have a little
>> transponder above each specific wheel that communicates directly with
>> the sensor in that wheel.

>
>
> Tegger,
>
> Pardon my ignorance, but what are the Civic-based Acuras?
>
> Thanks,
>




CSX and EL (which are Canada only), RSX, and the Integra.

I think only the CSX has a TPMS.


--
Tegger
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  #9 (permalink)  
Old 06 May 2010, 09:32 pm
bob
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Posts: n/a
Default Re: tire pressure monitor

In article <Xns9D70528388A1Dtegger@208.90.168.18>, invalid@invalid.inv
says...
>
> bob <nottooslow42@yahoo.com> wrote in
> news:MPG.264bd219c32e0d9c989781@news.eternal-september.org:
>
> > In article <Xns9D6F80DB56984tegger@208.90.168.18>, invalid@invalid.inv
> > says...
> >>

> > <snip>
> >> ALL Acura models with TPMS (except for Civic-based vehicles) have
> >> initiator-type TPMS.
> >>
> >> Therefore, all (non-Civic) Acuras with TPMS are able to tell you
> >> specifically which tire it is that's low, because they have a little
> >> transponder above each specific wheel that communicates directly with
> >> the sensor in that wheel.

> >
> >
> > Tegger,
> >
> > Pardon my ignorance, but what are the Civic-based Acuras?
> >
> > Thanks,
> >

>
>
>
> CSX and EL (which are Canada only), RSX, and the Integra.
>
> I think only the CSX has a TPMS.


Thank you. I was trying to figure what current production models in the
U.S. were civic-based and now I know why I couldn't think of any.


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  #10 (permalink)  
Old 07 May 2010, 07:25 am
Tegger
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Posts: n/a
Default Re: tire pressure monitor

bob <nottooslow42@yahoo.com> wrote in news:MPG.264d37b93957da48989782
@news.eternal-september.org:

> In article <Xns9D70528388A1Dtegger@208.90.168.18>, invalid@invalid.inv
> says...


>>
>> I think only the CSX has a TPMS.

>
> Thank you. I was trying to figure what current production models in the
> U.S. were civic-based and now I know why I couldn't think of any.
>
>
>



American Honda does not market any Civic-based vehicles under its Acura
brand.

Canada's standard of living is lower, so Honda Canada needed to give its
Acura dealers a Civic-based car so they'd have something cheap to sell.

--
Tegger
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