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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 a 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 all tire pressures to the specified value (See PRECAUTION  ).
        NOTE: Make sure the tires are cooled down.
  2. INITIALIZATION PROCEDURE 
    1. Turn the ignition switch on (IG).
    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.
      Fig 1: Identifying Tire Pressure Warning Light
      G05412995Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the ignition switch off.
    4. Connect Techstream to the DLC3.
    5. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
    6. Check that the initialization has been completed.
    7. Confirm that the tire pressure data of all tires are displayed on the tester screen.
      NOTE:
      • The initialization is normally completed within 2 to 3 minutes.
      • If the initialization has not been completed successfully, DTC C2177/77 will be set after the vehicle is driven for 20 minutes or more.
      • The initialization can be terminated by connecting terminals TC and CG of the DLC3.

      Tire Pressure Monitor 

      TIRE PRESSURE MONITOR TABLE

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      ID1 Tire Inflation Pressure min: Absolute pressure / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure / -100 kPa (-1.0 kgf/cm2 , -14 psi)
      max: Absolute pressure / 637.5 kPa (6.5 kgf/cm2 , 92.5 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 (-1.0 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received *
      ID2 Tire Inflation Pressure min: Absolute pressure / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure / -100 kPa (-1.0 kgf/cm2 , -14 psi)
      max: Absolute pressure / 637.5 kPa (6.5 kgf/cm2 , 92.5 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 (-1.0 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received.*
      ID3 Tire Inflation Pressure min: Absolute pressure / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure / -100 kPa (-1.0 kgf/cm2 , -14 psi)
      max: Absolute pressure / 637.5 kPa (6.5 kgf/cm2 , 92.5 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 (-1.0 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received *
      ID4 Tire Inflation Pressure min: Absolute pressure / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure / -100 kPa (-1.0 kgf/cm2 , -14 psi)
      max: Absolute pressure / 637.5 kPa (6.5 kgf/cm2 , 92.5 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 (-1.0 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received.*
      ID5 Tire Inflation Pressure min: Absolute pressure / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure / -100 kPa (-1.0 kgf/cm2 , -14 psi)
      max: Absolute pressure / 637.5 kPa (6.5 kgf/cm2 , 92.5 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 (-1.0 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received.*
      HINT:
      • The initialization is complete when the DATA LIST "ID Tire Inflation Pressure" display shows the correct pressures.
      • *: It may take about 2 or 3 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21  to C2125/25  .
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