VELOSTER(FS) >2013 > G 1.6 T-GDI > Suspension System > Tire Pressure Monitoring System > TPMS Sensor>Description and Operation  
Description

Function
1.
Tire pressure, Temperature, Acceleration, Battery voltage measurement
2.
RF (Radio Frequency) Transmit (Tire pressure, Temperature, Acceleration, Battery voltage,Sensor ID, Sensor Status information.)
A.
RF – 315 MHz
B.
RF Modulation – FSK (Frequency shift keying) way
Operation
Operating mod
OFF mod
•
Entry – LF command
•
Air pressure sample : 60 sec
•
Temperature sample : 60 sec•
•
Exit – LF command or pressure change of > 19 psi 
Stationary mod
•
Entry – From OFF mod or when no motion detected
•
Air pressure sample : 60 sec
•
Temperature sample : 60 sec
•
Motion sample : 15sec
•
Exit – When detected motion by sensor & verified
AL (Auto learning) mod
•
Entry – Motion detected
•
Air pressure sample : 10.8 sec
•
Temperature sample : 10.8 sec
•
Motion sample : 10.8 sec
•
Exit – Transmission of 16 blocks
Roll mod
•
Entry – AL mod expires
•
Air pressure sample : 15 sec
•
Temperature sample : 15 sec
•
Motion sample : 60 sec
•
Exit – no further motion detected
Service mod
•
Entry – Speed below detection level
•
Air pressure sample : 15 sec
•
Temperature sample : 15 sec
•
Motion sample : 15 sec
•
Exit – Further motion detected
RF test mod
•
Entry – LF command
•
Air pressure sample : 15 sec
•
Temperature sample : 15 sec
•
Motion sample : 15 sec
•
Exit – Following 8hrs duration
Alter mod
•
Entry – Detection of pressure change
•
Air pressure sample : 2 sec
•
Temperature sample : 2 sec
•
Exit – Following 2 pressure sample or pressure