Hyundai Sonata: Tire Pressure Monitoring System / Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Suspension System / Tire Pressure Monitoring System / Description and Operation

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 fro

In other words, 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

Lamp ON/OFF Conditions when the Tire Pressure Decreases or Air is Leaking from the Tire

Lamp ON

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

Lamp OFF

A.	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

Warning Conditions and Display

A.	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.

Lamp OFF

A.	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 to the previous fault code.

•	If this phenomenon occurs while driving, you should check the cause of the fault even after the DTC is resolved. (Turn the ignition switch 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.

System Defect

General Operation

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

B.	The priority of a defect depends on its cause.

C.	Certain defects are not diagnosed as DTCs.

The following are major defects:

A.	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.

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

Components and Components Location

Components 1. Receiver2. TPMS sensor (FL)3. TPMS sensor (RL)4. TPMS sensor (FR)5. TPMS sensor (RR) ...

TPMS Sensor Description and Operation

Configuration State 1. Driving state Sensor transmissions occur every 1 minutes and pressure is measured every 15 seconds. 2. Stationary state Sensor transmissions does not occur and pressur ...

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