How To Proceed With Troubleshooting [11/2023 - ]: Procedure

Result

Result: 

NEXT 

See step  2

1. 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.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Using the GTS, display the Data List.
2. Set the pressure of each tire to the specified value.
   NOTE:

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

   Refer to INSPECTION [12/2019 - ]

3. 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.

4. Perform initialization.

   Refer to INITIALIZATION [11/2023 - ] 

   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 conditions are met:
     • The tire pressure drops to approximately 75% or less of the tire pressure set when the system was initialized.
     • 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.

       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.

       NOTE:

       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.

   Result

   Result	Proceed to
   Tire pressure warning light remains on	A
   Tire pressure warning light goes off	B

Result: 

B 

See step  11

Result: 

A 

See step  4

1. Check the ECUs connected to the CAN bus.

   for HV Model: Refer to DIAGNOSIS SYSTEM [11/2023 - ]

   for Gasoline Model: Refer to DIAGNOSIS SYSTEM [11/2023 - ]

   Result

   Result	Proceed to
   No malfunction appears	A
   Malfunction appears	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

Result: 

A 

See step  5

1. Check for DTCs.

   for HV Model: Refer to DIAGNOSIS SYSTEM [11/2023 - ]

   for Gasoline Model: Refer to DIAGNOSIS SYSTEM [11/2023 - ]

   Result

   Result	Proceed to
   CAN system DTCs are not output	A
   CAN system DTCs are output	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

Result: 

A 

See step  6

1. Check and record DTCs and Freeze Frame Data.

   for DTC Check / Clear: Refer to DTC CHECK / CLEAR [11/2023 - ] 

   for Freeze Frame Data: Refer to FREEZE FRAME DATA [11/2023 - ] 

   Chassis > Tire Pressure Monitor > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are output	A
   DTCs are not output	B

Result: 

B 

See step  8

Result: 

A 

See step  7

1. Refer to Diagnostic Trouble Code Chart.

   Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  10

1. Refer to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [11/2023 - ] 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  9

1. Refer to Electronic Circuit Inspection Procedure.

   Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [12/2019 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  10

1. Repair or replace parts based on the diagnosis result.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

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

   Refer to DATA LIST / ACTIVE TEST [11/2023 - ]

2. Perform initialization.

   Refer to INITIALIZATION [11/2023 - ] 

3. Confirm that the initialization has been completed.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END