Q about tire pressure monitor system
#1
Q about tire pressure monitor system
from the FAQ:
- The tire pressure monitor system measures wheel speed at each wheel, and uses the outside ambient temperature to compensate correction for density. if a tire's pressure is low, you will be notified by a signal in the instrument cluster.
Interesting, so this is to say that it monitors the tire pressure without a actuall pressure sensor? What if you had one tire that was very worn [and thereby slightly smaller]. Would the system say that tire was low on air since it was rotating slightly faster then the rest of the tires?
- The tire pressure monitor system measures wheel speed at each wheel, and uses the outside ambient temperature to compensate correction for density. if a tire's pressure is low, you will be notified by a signal in the instrument cluster.
Interesting, so this is to say that it monitors the tire pressure without a actuall pressure sensor? What if you had one tire that was very worn [and thereby slightly smaller]. Would the system say that tire was low on air since it was rotating slightly faster then the rest of the tires?
#3
Looks like TPMS only detects drastic changes in pressure of one wheel. With recent temperature drop I checked tire pressures and on of the front wheels was at 22psi, others were at 24-26-28. TPMS did not go off, probably because of the gradual pressure drop. So it makes sense not to trust the system completely. Keep a tire gauge handy.
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06ScionTc5sp1
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12-21-2014 07:21 AM