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Low Tire Pressure Indicator

Discussion in 'Wheels & Tires' started by JWWPHOTO, Aug 2, 2008.

  1. Aug 2, 2008 at 2:27 AM
    #1
    JWWPHOTO

    JWWPHOTO [OP] Well-Known Member

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    How does this gizmo work?

    I had my first tire rotation yesterday. I have never owned a vehicle with this feature and was wondering how the truck can sense when tire pressure falls below the threashold.



    Thanks

    Jeff W. Waldrop :confused:
     
  2. Aug 2, 2008 at 2:38 AM
    #2
    45longcolt

    45longcolt Well-Known Member

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    The valves in our tires are special as they are actually pressure sensor units, spare included. When the pressure level drops below a certain level, the TPMS lamp goes on and stays on until the faulty pressure is corrected.
     
  3. Aug 2, 2008 at 2:35 PM
    #3
    fritzthecat

    fritzthecat Well-Known Member

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    The valvestems in the 5 tires contain a pressure sensor and an RF transmitter.
    The truck has a receiver.
    The 'reset' button underneath the dash sets the current pressure in the tires.
    When the pressure changes +/- 4 psi, the TPMS light in the dash will come on solid.
    If the TPMS light flashes you have a malfunction in the system.
    Steel wheel and aluminum wheel sensors are not interchangeable.
    Each sensor is about U$120 at the dealer.
    Each sensor has a unique GUID number that must be programmed into the truck ECU.

    Fritz
     
  4. Aug 2, 2008 at 3:07 PM
    #4
    JWWPHOTO

    JWWPHOTO [OP] Well-Known Member

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    I appreciate both responses!! :eek::eek::eek:
     
  5. Aug 2, 2008 at 4:46 PM
    #5
    JWWPHOTO

    JWWPHOTO [OP] Well-Known Member

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    I appreciate both responses!! :eek::eek::eek:
     
  6. Aug 2, 2008 at 5:45 PM
    #6
    linkfeeney

    linkfeeney Well-Known Member

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    so another word, when u get new tires, the new stems will work for the sensors?
     
  7. Aug 2, 2008 at 5:47 PM
    #7
    beastlytaco

    beastlytaco This is TW. One never knows what is a joke anymore

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    yeah and rims as well?
     
  8. Aug 3, 2008 at 8:13 AM
    #8
    marvin02

    marvin02 Well-Known Member

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    You may want to read Tire Pressure Monitoring Systems info at the Tire Rack site.

    Here is a good thread about the Tacoma sensor system at Toyota Nation.
     
  9. Oct 6, 2008 at 4:03 PM
    #9
    gizbo

    gizbo eLTacoMaN

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    Does this also include the spare? My light has been on for months, I have the four tires all at the same pressure. When I have tried to reset the switch, the indicator light does not go off.
     
  10. Oct 6, 2008 at 4:18 PM
    #10
    TicTacOma

    TicTacOma UnderWater Monopoly Champion

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    If you still have all the original paperwork for your truck, look in the owners manual pouch. There is a sheet with 5 bar code labels. Those are for the tire pressure doo-hickies.
    (I think)
     
  11. Oct 6, 2008 at 4:25 PM
    #11
    gizbo

    gizbo eLTacoMaN

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    Bed liner, bed mat, wind visors, towing package
    Thanks for the info. I will review this when I return home on Wednesday.

    gizbo
     
  12. Oct 6, 2008 at 5:26 PM
    #12
    linkfeeney

    linkfeeney Well-Known Member

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    i dont have to buy new senors when i get new tires??? do I? does not sound cheap!!
     
  13. Oct 6, 2008 at 5:44 PM
    #13
    neslerrah

    neslerrah Who needs 4WD?

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    All good information to know. Thanks fritzthecat!
     
  14. Oct 6, 2008 at 5:51 PM
    #14
    Brunes

    Brunes abides. Staff Member

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    Nope....Only if you get rims that the TPMS sensors you have are not compatable.

    Get your new rubbers put on- and reset the TPMS value after they are done.
     
  15. Oct 6, 2008 at 5:55 PM
    #15
    Okkine

    Okkine Well-Known Member

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    Does anyone know if tire pressure sensors are mandatory here in Canada. :canada: Sounds like it could be a handy tool, but not worth replacing should it become damaged.


    It looks like you only need new sensors if you change to the steel rims from aluminum, or vice-versa. But it also looks like you can only program 5 sensors at a time. So it will make things difficult if you want to have a set of winter tires.
     
  16. Oct 6, 2008 at 6:11 PM
    #16
    linkfeeney

    linkfeeney Well-Known Member

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    bless u!!
     
  17. Oct 6, 2008 at 6:45 PM
    #17
    br217398

    br217398 Crazy Person.....

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    well i dont know if im special, or if toyota just likes me, but when i replaced my wheels and tires, the tpms sensors would not fit on the new rims. took the sensors out went to toyota ad asked if they had sensors that had more of a bend to fit the curvature of my wheel better, they came back with 2005 Corolla Sensors and did a trade really. no extra charge. Had them installed, and i still have my sensors :)
     
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