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WT-8 < SYSTEM DESCRIPTION > SYSTEM SYSTEM System Description INFOID:0000000009653419 • During driving, the TPMS (Tire Pressure Monitoring System) receives the signal transmitted from tire pres- sure sensor installed in each wheel. The BCM (Body Control Module) of this system has pressure judgment • If the tire pressure is less than the specified value, the low tire pressure warning lamp illuminates that the tire pressure is less than the specified value. • Activates the TPMS (Tire Pressure Monitoring System) when the vehicle speed is 40 km/h (25 MPH) or more. • Added easy fill tire alert function to TPMS (Tire Pressure Monitoring System). Refer to . SYSTEM DIAGRAM INPUT/OUTPUT SIGNAL Major signal transmission between each unit via communication lines is shown in the following table. LOW TIRE PRESSURE WARNING LAMP INDICATION CONDITION Uses CAN communication from the BCM to illuminate the low tire pressure warning lamp on the combination JSEIA0407GB Component parts Signal item Combination meter Mainly receives the following signals from BCM via CAN communication. ABS actuator and electric unit (con- Mainly transmits the following signals to BCM via CAN communication. TCM Mainly transmits the following signals to BCM via CAN communication. IPDM E/R Mainly receives the following signals from BCM via CAN communication. Condition Low tire pressure warning lamp Ignition switch OFF OFF Ignition switch ON Warning lamp turns on for 1second, then turns off. |