Description

The Tire Pressure Monitoring System (TPMS) monitors the pressure and temperature inside the tire in order to warn the driver of changes in pressure which may influence the operation of the vehicle. The TPMS control module analyzes wireless information from sensors, the system detects the pneumatic pressure of the tires and warns the driver of if the pneumatic pressure drops below the standard level.Low-pressure Warning Lamp on the Dashboard

Dashboard Tire Low-pressure Warning Light

TPMS light ON/OFF conditions

1.Lamp ON

• The lamp turns ON when the tire pressure decreases below the standard level.

2.Lamp OFF

• Low pneumatic pressure: The warning lamp turns OFF when the tire pressure exceeds the pressure required to turn off the lamp.

TPMS Fault Warning Lamp

1.Warning Conditions and Display

• When the system detects a defect in the external operating environment (low battery voltage, abnormal vehicle speed, etc), the warning lamp blinks for about 1 minute and then turns ON.

2.Lamp OFF

• The warning lamp turns OFF when the DTC is resolved. The DTC is automatically resolved when the system does not receive any fault signals for 30 or more ignition cycles after it changes from the previous fault code.

   

• If this condition occurs while driving, you should check the cause of the fault even after the DTC is resolved.(Turn the ignition from OFF to ON. Then, check the lamp status.)

• The warning lamp turns off once the DTC is resolved. The warning lamp stays on until you complete the check necessary to resolve the DTC.

• If the DTC is resolved, the warning lamp turns OFF during the same ignition cycle.

   

If the vehicle starts within 19 minutes after the replacement of the wheel, the TPMS Malfunction Indicator on the instrument cluster illuminates.

– The above symptom is due to communication failure between the BCM and the replaced TPMS ID.

– This communication failure indicator turns off in 19 minutes after the vehicle stops through the BCM’s automatic learning process of TPMS ID.(When driving the vehicle after stopping for over 19 minutes, the indicator turns off automatically.)

Wheel position warning lamp

1.Lamp ON

• It is on simultaneously with the tread lamp.

• It Indicates the position of tires with low pressure and air leaks.

2.Lamp OFF

• OFF simultaneously with the tread lamp.

   

If the wheel position has been changed before driving, the system assumes the previous state, but the warning light illuminates correctly when the current driving position is determined.

   

• Tread warning lights and wheel position warning lights may light up due to sudden changes in the outside temperature (especially in winter) and influences from driving.

• When the warning lamp turns on, check the inflation pressure and then inflate it to the specified tire pressure.

System Defect

1.General Operation

• The system detects many input elements to identify potential defects.

• The priority of a defect depends on its cause.

• Certain defects are not diagnosed as DTCs.

The following are major defects:

• In order to diagnose more symptoms of the fault when the ignition line malfunctions, you must check the warning lamp when you turn the ignition on.

• Check whether the warning lamp turns on and then off.