System Description

TPMS

System Description


BODY CONTROL MODULE (BCM)






The BCM is shown with the lower instrument panel LH removed. The
BCM reads the air pressure signal received by the remote keyless entry receiver, and controls the low tire pressure warning lamp as shown below. It also has a self-diagnosis function to detect a system malfunction.






TRANSMITTER






A sensor-transmitter integrated with a valve is installed in each wheel, and transmits a detected air pressure signal in the form of a radio wave. The radio signal is received by the remote keyless entry receiver.

REMOTE KEYLESS ENTRY RECEIVER






The remote keyless entry receiver is shown with the instrument panel RH removed. The remote keyless entry receiver receives the air pressure signal transmitted by the transmitter in each wheel.

COMBINATION METER






The combination meter receives tire pressure status from the BCM
using CAN communication. When a low tire pressure condition is sensed by the BCM, the combination meter low tire pressure warning lamp is activated. A CHECK TIRE PRESSURE warning message will also be displayed in the vehicle information display.

TIRE PRESSURE WARNING CHECK CONNECTOR






The tire pressure warning check connector can be grounded in order to initiate self-diagnosis without a CONSULT. Self-Diagnosis (Without CONSULT). The tire pressure warning check connector is located behind the lower portion of the instrument panel
LH.

DISPLAY UNIT






Displays the air pressure of each tire.
NOTE:
After the ignition switch is turned on, the pressure values will not be displayed until the data of each wheel is received.

DESCRIPTION

During driving, the tire pressure monitoring system receives the signal transmitted from the transmitter installed in each wheel, and turns on the low tire pressure warning lamp when the tire pressure becomes low.
The control unit (BCM) for this system has pressure judgement and self-diagnosis functions.

FUNCTION

When the tire pressure monitoring system detects low inflation pressure or an internal malfunction, the low tire pressure warning lamp in the combination meter comes on. The malfunction is indicated by the low tire pressure warning lamp flashing.