System Description

During driving, the TPMS (tire pressure monitoring system) receives the signal transmitted from tire pressure sensor installed in each wheel. The BCM of this system has pressure judgment and trouble diagnosis functions. When the TPMS (tire pressure monitoring system) detects low inflation pressure or another unusual symptom, the low tire pressure warning lamps in the combination meter comes on.
If the tire pressure is less than the warning tire pressure value, the low tire pressure warning light illuminates.
Location of wheel is specified due to the synchronism of wheel sensor position and tire pressure sensor position.
Activates the TPMS (tire pressure monitoring system) when the vehicle speed is 40 km/h (25 MPH) or more.
The TPMS (tire pressure monitoring system) has easy fill tire alert function to aid in the inflation.

SYSTEM DIAGRAM

Component	Signal description
BCM	Mainly transmits the following signals to combination meter via CAN communication. Low tire pressure warning light signal Low tire pressure wheel location signal TPMS malfunction warning light signal ECO advice signal Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN communication. Vehicle speed signal Mainly transmits the following signals to IPDM E/R via CAN communication. Horn request signal Mainly receives the following signals from TCM via CAN communication. Shift position signal
Combination meter	Mainly receives the following signals from BCM via CAN communication. Low tire pressure warning light signal Low tire pressure wheel location signal TPMS malfunction warning light signal ECO advice signal
ABS actuator and electric unit (control unit)	Mainly transmits the following signals to BCM via CAN communication. Vehicle speed signal
TCM	Mainly transmits the following signals to BCM via CAN communication. Shift position signal
IPDM E/R	Mainly receives the following signals from BCM via CAN communication. Horn request signal

LOW TIRE PRESSURE WARNING LIGHT AND INFORMATION DISPLAY INDICATIONS

Uses CAN communication from the low tire pressure warning control unit to illuminate the low tire pressure warning light on the combination meter.

Condition	Low tire pressure warning light	Information display
Ignition switch OFF	OFF	OFF
Ignition switch ON (system normal)	ON for 1 second then turns OFF	No TPMS message
Low tire pressure	ON	Low Tire Pressure Warning
Configuration not performed in tire pressure monitoring system	Blinks for 1 minute then stays ON	No TPMS message
Tire pressure sensor ID not registered in BCM
Tire pressure monitoring system malfunction

HAZARD WARNING LIGHT INDICATION CONDITION

The hazard warning light blinks under the following conditions.

HORN CONTROL CONDITION

During the use of the easy fill tire alert function.