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Tire Pressure Warning System: Initialization

  1. DESCRIPTION OF INITIALIZATION 
    1. Perform initialization in the following cases:
      • Before delivery of a new vehicle.
      • After replacement of the tire pressure warning ECU*.
      • After replacement of the tire pressure warning valve and transmitter*.
      • Specified tire pressure changes depending on the size or type of the tire.

      HINT:

      *: Perform initialization after the transmitter ID registration is completed (See REGISTRATION  ).

    2. Before initialization
      1. Set the air pressure of all wheels to the specified value (See INSPECTION  ).
        NOTE: Make sure the tires are cooled down.
  2. INITIALIZATION PROCEDURE 
    1. Turn the ignition switch to ON.
    2. Press and hold the tire pressure warning reset switch for 3 seconds or more so that the tire pressure warning light blinks 3 times.
    3. Turn the ignition switch to OFF.
    4. Connect Techstream to the DLC3.
    5. Turn the ignition switch to ON and turn the tester on.
    6. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
    7. Check that the initialization has been completed.
    8. Confirm that the tire pressure data of all tires are displayed on the tester screen.
      Fig 1: Identifying Tire Pressure Warning Reset Switch With Warning Light Output Pattern
      G05560250Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • The initialization is normally completed within 2 to 3 minutes.
      • If the initialization has not been completed successfully, DTC C2177/77 is set after a vehicle speed of 8 km/h (5 mph) or more continues for 20 minutes or more.
      • The initialization can be terminated by connecting terminals TC and CG of the DLC3 connector.
      1. Techstream
        Fig 2: Identifying Terminals TC And CG Of DLC3 Connector
        G04944121Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Tire Pressure Monitor 

        TIRE PRESSURE MONITOR REFERENCE

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        ID1 Tire Inflation Pressure ID1 tire inflation pressure / min.: Absolute pressure / 0 kPa (0 kgf/cm2 ,0 psi), Relative pressure/-100 kPa (-1 kgf/cm2 , -14 psi) max.: Absolute pressure / 637.5 kPa (6.5 kgf/ cm2 , 92 psi), Relative pressure / 537.5 kPa (5.4 kgf/cm2 , 78 psi) Actual tire inflation pressure If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/ cm2 , -14 psi) is displayed for relative pressure, data has not been received.*
        ID2 Tire Inflation Pressure ID2 tire inflation pressure / min.: Absolute pressure / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure/-100 kPa (-1 kgf/cm2 , -14 psi) max.: Absolute pressure / 637.5 kPa (6.5 kgf/ cm2 , 92 psi), Relative pressure / 537.5 kPa (5.4 kgf/cm2 , 78 psi) Actual tire inflation pressure If 0 kPa (0 kgf/cm2 ,0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/ cm2 , -14 psi) is displayed for relative pressure, data has not been received.*
        ID3 Tire Inflation Pressure ID3 tire inflation pressure / min.: Absolute pressure / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure / -100 kPa (-1 kgf/cm2 , -14 psi) max.: Absolute pressure / 637.5 kPa (6.5 kgf/ cm2 , 92 psi), Relative pressure / 537.5 kPa (5.4 kgf/cm2 , 78 psi) Actual tire inflation pressure If 0 kPa (0 kgf/cm2 ,0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/ cm2 , -14 psi) is displayed for relative pressure, data has not been received.*
        ID4 Tire Inflation Pressure ID4 tire inflation pressure / min.: Absolute pressure / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure / -100 kPa (-1 kgf/cm2 , -14 psi) max.: Absolute pressure / 637.5 kPa (6.5 kgf/ cm2 , 92 psi), Relative pressure / 537.5 kPa (5.4 kgf/cm2 , 78 psi) Actual tire inflation pressure If 0 kPa (0 kgf/cm2 ,0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/ cm2 , -14 psi) is displayed for relative pressure, data has not been received.*
        HINT:
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