Tire pressure sensor
Each sensor is an integrated unit made up of the tire valve stem, a pressure sensor, and a transmitter The unit is attached to the inside of the wheel, around the valve stem The sensor transmits internal tire information one time per 60 seconds to the control unit When the TPMS control unit receives a tire pressure reading of less than With 17 inch and 18 inch wheels 175 kPa (1 8 kgf/cm2 ,25 psi), or with 19 inch wheels front 202 kPa (2 1 kgf/cm2 ,29 psi), rear 175 kPa (1 8 kgf/cm2 ,25 psi), the TPMS control unit then turns on the low tire pressure indicator and the appropriate tire(s) indicator When that tire's pressure is increased to more than With 17 inch and 18 inch wheels 200 kPa (2 0 kgf/cm2 , 29 psi), or with 19 inch wheels front 235 kPa (2 4 kgf/cm2 ,34 psi), rear 200 kPa (2 0 kgf/cm2 ,29 psi), the transmitter sends the tire pressure reading to the control unit, and the control unit turns the indicators off