TIRE PRESSURE MONITORING  TIRE PRESSURE WARNING SYSTEM  HOW TO PROCEED WITH TROUBLESHOOTING  

Interview the customer to confirm the problem.

HINT:

It is important to collect as much specific information as possible from the customer to allow for a quick repair.

Using the GTS, display the Data List.

Set the pressure of each tire to the specified value.

NOTICE:

Refer to the link as the procedure for adjusting the tire pressures differs depending on the temperature of the tires.

Click hereSuspension>TIRE / WHEEL>TIRE AND WHEEL SYSTEM>INSPECTION202201,999999,_53,_113126,_0503372,RM100000001ZE9E,

Display "ID Tire Inflation Pressure" in the Data List and check that the tire pressure values match the adjusted pressure amount.

HINT:

It may take a few minutes until the values are displayed.

Perform initialization.

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>INITIALIZATION202201,999999,_53,_113127,_0503457,RM100000001ZEHE,

HINT:

·

The warning threshold value changes depending on the driving conditions during initialization. As a result, the tire pressure warning light may not turn off even if the tire pressure is adjusted to the specified pressure.

·

The tire pressure warning system illuminates the tire pressure warning light to warn the driver when any of the following condition is met:

-

Due to the operation of the tire pressure warning reset switch (steering pad switch assembly), the tire pressure drops to approximately 75% or less of the tire pressure set during system initialization.

-

The tire pressure drastically decreases (approximately 20 kPa (0.2 kgf/cm², 2.9 psi) or more within several minutes) to approximately 75% or less of the tire pressure* when the tires are warmed.

*: If initialization is performed and the vehicle is driven for a certain period of time, the tire pressure set during system initialization is adjusted and set to the tire pressure when the tires are warmed from the driving conditions.

NOTICE:

If the tire pressure is decreased approximately 20 kPa (0.2 kgf/cm², 2.9 psi) or more in order to adjust the tire pressure, even if the adjusted tire pressure is 75% or more than the tire pressure set during system initialization, the tire pressure warning light may illuminate if the tire pressure drops below 75% of the tire pressure set when the tires are warmed. In this case, perform initialization again.

HINT:

The tire pressure warning pressure (pressure at which the tire pressure warning light is illuminated) cannot be set to approximately 75% or less of a specified tire pressure value.

Check the ECUs connected to the CAN bus.

for Gasoline Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>DIAGNOSIS SYSTEM202307,999999,_57,_104409,_0605911,RM100000002C081,

for HEV Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HEV Model)>DIAGNOSIS SYSTEM202307,999999,_57,_104409,_0606038,RM100000002C0LE,

Check for DTCs.

for Gasoline Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>DIAGNOSIS SYSTEM202307,999999,_57,_104409,_0605911,RM100000002C081,

for HEV Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HEV Model)>DIAGNOSIS SYSTEM202307,999999,_57,_104409,_0606038,RM100000002C0LE,

Check and record DTCs and Freeze Frame Data.

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>FREEZE FRAME DATA202201,999999,_53,_113127,_0503457,RM100000001ZEHI,

Chassis > Tire Pressure Monitor > Trouble Codes

50001 452

Refer to Diagnostic Trouble Code Chart.

Refer to Problem Symptoms Table.

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>PROBLEM SYMPTOMS TABLE202307,999999,_53,_113127,_0503457,RM100000002CMHY,

Refer to Electronic Circuit Inspection Procedure.

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>ELECTRONIC CIRCUIT INSPECTION PROCEDURE202201,999999,_V1,_107171,_0496334,RM100000001YK2F,

Repair or replace parts based on the diagnosis result.

Check the Data List to confirm that the tire inflation pressure has been received.

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>DATA LIST / ACTIVE TEST202201,999999,_53,_113127,_0503457,RM100000001ZEHK,

Perform initialization.

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>INITIALIZATION202201,999999,_53,_113127,_0503457,RM100000001ZEHE,

Confirm that the initialization has been completed.