Tire Pressure Sensor: Description and Operation

DESCRIPTION




1. MODE
(1) Stationary/Rolling mode
A. Measure pressure and temperature every 4 seconds.
B. Measure acceleration every 60 seconds.
C. High line TPMS sensors transmit data every 60 seconds while awake.
(2) Sleep mode
A. This state is a Low current consumption state.
B. Sensors are in this state when they first arrive at the dealership (either on the vehicle or as replacement spares).
C. In this state, the sensor does not measure pressure / temperature / battery level.
D. The sensor will not transmit in this state unless requested to do so by the initiate command or woken by acceleration > 20 mph.
E. Measure acceleration every 60 seconds.
F. High line sensors return to this state if no LFI signals and the tire remains stationary for ≥ 10 minutes to conserve battery power.