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The "Tire inflation" light came on , but....

Discussion in '2nd Gen. Tacomas (2005-2015)' started by 2012_Prerunner_man, Nov 24, 2015.

  1. Nov 24, 2015 at 10:48 PM
    #1
    2012_Prerunner_man

    2012_Prerunner_man [OP] Active Member

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    I checked my tires with an accurate gauge , and they are all at exactly 30p.s.i. , which is what the owners manual in my 2012 Prerunner say they should be ( with the 2.7L motor , and the tires being size P245/75R/16's , which they are that size )... I drove it around to see if the light would go off , but no luck yet . Any ideas ?
     
  2. Nov 24, 2015 at 10:51 PM
    #2
    BotoSlap808

    BotoSlap808 JAHblessed

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    Spare tire or could be a tpms sensor gone bad
     
    QChawks and jdg like this.
  3. Nov 24, 2015 at 10:55 PM
    #3
    BotoSlap808

    BotoSlap808 JAHblessed

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    If spare is aired up that means bad tpms
     
  4. Nov 24, 2015 at 11:02 PM
    #4
    shakerhood

    shakerhood Well-Known Member

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    The light comes on after a certain percentage is lost, they could have been overinflated when it was set and now the system sees 30 psi as under now, you also want to check the spare as mentioned above.
     
  5. Nov 24, 2015 at 11:12 PM
    #5
    2012_Prerunner_man

    2012_Prerunner_man [OP] Active Member

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    Well, that was it... the spare tire was down on inflation... Thanks fellow owners !!
     
  6. Nov 24, 2015 at 11:27 PM
    #6
    BotoSlap808

    BotoSlap808 JAHblessed

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  7. Nov 25, 2015 at 4:33 AM
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    PackCon

    PackCon Well-Known Member

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    My opinion: people survived the past 100 years of cars without tire pressure gauges. We can too. If it's broken, who cares. Get out and look regularly.

    I only listen to my spedometer, fuel gauge, and RPM gauge. Anything else is white noise.
     
    1buzzbait likes this.
  8. Nov 25, 2015 at 2:13 PM
    #8
    Jimmyh

    Jimmyh Well-Known Member

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    2012 doesn't have a TPMS in the spare when stock from the factory.

    Just reset the TPMS to the pressure you have now if it is at the sticker pressure.
     
  9. Nov 25, 2015 at 2:18 PM
    #9
    Tex-Tac

    Tex-Tac Well-Known Member

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    Installed Overhead Compass and Temperature Display along with outside temperature sensor and wiring; LED lights reverse backup; LED license plate lights; Added GTA Bluetooth Audio kit to stock radio for iphone audio; Spare tire steel braided air hose extension connection to rear bumper; Installed new headlights along with new bulbs PIAA H4 XTreme and for fog lights PIAA H10 XTreme bulbs. Installed new hood with "hood-scoop". Installed Predator Side Steps. Replaced front chrome grill with customized color matched (Desert Sand Mica) grill with added TOYOTA lettering (also in matched color), installed and secured tailgate anti-theft devices.
  10. Nov 25, 2015 at 3:06 PM
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    BotoSlap808

    BotoSlap808 JAHblessed

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    My work truck is a 2012 and it has tpms in the spare straight from factory
     
  11. Nov 25, 2015 at 3:15 PM
    #11
    ABA180

    ABA180 It burns when I pee....

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    Let's assume one has a bad sensor. How does one isolate it to the particular wheel and what's the avverage cost, is it a dealer-only job?

    Wife's Rav4 is the one, 05..already checked spare and no sensor.
     
  12. Nov 25, 2015 at 3:30 PM
    #12
    BotoSlap808

    BotoSlap808 JAHblessed

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    Only way to test is a tpms diagnostic tool that scans and tells you if it's a dead battery, weak signal or functional
     
  13. Nov 25, 2015 at 4:40 PM
    #13
    ABA180

    ABA180 It burns when I pee....

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    I'd presume that's a general tool, not toyota specific?
     
  14. Nov 25, 2015 at 4:59 PM
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    BotoSlap808

    BotoSlap808 JAHblessed

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    I believe it's general tool
     
  15. Nov 25, 2015 at 5:00 PM
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    T4RFTMFW

    T4RFTMFW #DBBeer

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    There hasn't been a TPMS in the spare since 2011 IIRC.
     
  16. Nov 25, 2015 at 5:03 PM
    #16
    BotoSlap808

    BotoSlap808 JAHblessed

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    Just serviced my 2012 work truck 3 weeks ago and there is a tpms in the spare idk maybe just a Hawaii dealer thing but it's got one fact
     
  17. Nov 25, 2015 at 5:05 PM
    #17
    BotoSlap808

    BotoSlap808 JAHblessed

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    Also like op said he aired up spare and it fixed the light which means his has tpms
     
  18. Nov 26, 2015 at 6:37 AM
    #18
    Jimmyh

    Jimmyh Well-Known Member

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    That is odd!
     
  19. Nov 26, 2015 at 6:46 AM
    #19
    htgreen3

    htgreen3 Well-Known Member

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    I had the same problem, aired all up to 35 psi, still had the dreaded TPMS light, call the dealer, they said if the light is blinking, bad TPMS sensor, otherwise air the spare to about 38 and my problem should be solved, if not bring it in for a $100 TPMS diagnosic test. Aired up the spare to 38 and problem solved
     
  20. Nov 26, 2015 at 7:01 AM
    #20
    nine2nine

    nine2nine Well-Known Member

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    I bought a kit that is used for the Dually trucks rear wheels.It has two steal braided hoses that are about 12 inches long and 2 clamps to hold it to the wheel like the one from Amazon link above but is at half the price.It makes it a lot easer to air up spare tire.
     

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