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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 tire.
      • When changing the tire inflation pressure by changing traveling speed or load weight, etc.

      HINT:

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

    2. Before initialization
      1. Set the tire pressure of all tires to the specified value(s) (See TIRE PRESSURE WARNING SYSTEM  ).
      NOTE: Make sure the tires are cooled down.
  2. INITIALIZATION PROCEDURE 
    1. Turn the engine 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: Blinking Pattern - Tire Pressure Warning Light Output Pattern
      G05629752Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the engine switch off.
    4. Connect the Techstream to the DLC3.
    5. Turn the engine switch on (IG) and turn the Techstream 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 Techstream screen.
    NOTE:
    • The initialization is normally completed within 2 to 3 minutes.
    • If the initialization has not been completed successfully, DTC C2177/77 is stored after a vehicle speed of 8 km/h (5 mph) or more continues for 20 minutes or more.
    • While in test mode, the system will not change to initialization mode even if the tire pressure warning reset switch is pushed.
    • The initialization can be terminated by connecting terminals 13 (TC) and 4 (CG) of the DLC3.
    Fig 2: Identifying DLC3 Connector Terminals
    G05629753Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Tire Pressure Monitor 

    DATA LIST - TIRE PRESSURE MONITOR

    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    ID1 Tire Inflation Pressure ID1 tire inflation pressure/min.: Absolute pressure (abs)/0 kPa (0 kgf/cm2 , 0 psi), Relative pressure (gauge)/-100 kPa (-1.0 kgf/cm2 , -14 psi)
    max.: Absolute pressure (abs)/637.5 kPa (6.5 kgf/cm2 , 92.5 psi), Relative pressure (gauge)/537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2 , -14 psi) is displayed for the relative pressure (gauge), the data has not been received.*
    ID2 Tire Inflation Pressure ID2 tire inflation pressure/min.: Absolute pressure (abs)/0 kPa (0 kgf/cm2 , 0 psi), Relative pressure (gauge)/-100 kPa (-1.0 kgf/cm2 ,-14 psi)
    max.: Absolute pressure (abs)/637.5 kPa (6.5 kgf/cm2 , 92.5 psi), Relative pressure (gauge)/537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa (0 kgf/cm2 ,0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2 , -14 psi) is displayed for the relative pressure (gauge), the data has not been received.*
    ID3 Tire Inflation Pressure ID3 tire inflation pressure/min.: Absolute pressure (abs)/0 kPa (0 kgf/cm2 , 0 psi), Relative pressure (gauge)/-100 kPa (-1.0 kgf/cm2 , -14 psi)
    max.: Absolute pressure (abs)/637.5 kPa (6.5 kgf/cm2 , 92.5 psi), Relative pressure (gauge)/537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2 , -14 psi) is displayed for the relative pressure (gauge), the data has not been received.*
    ID4 Tire Inflation Pressure ID4 tire inflation pressure/min.: Absolute pressure (abs)/0 kPa (0 kgf cm2 , 0 psi), Relative pressure (gauge)/-100 kPa (-1.0 kgf/cm2 , -14 psi)
    max.: Absolute pressure (abs)/637.5 kPa (6.5 kgf/cm2 , 92.5 psi), Relative pressure (gauge)/537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2 , -14 psi) is displayed for the relative pressure (gauge), the data has not been received.*
    ID5 Tire Inflation Pressure ID5 tire inflation pressure/min.: Absolute pressure (abs)/0 kPa (0 kgf/cm2 , 0 psi), Relative pressure (gauge)/-100 kPa (-1.0 kgf/cm2 , -14 psi)
    max.: Absolute pressure (abs)/637.5 kPa (6.5 kgf/cm2 , 92.5 psi), Relative pressure (gauge)/537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2 , -14 psi) is displayed for the relative pressure (gauge), the 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 (See DTC C2121/21 NO SIGNAL FROM TRANSMITTER ID1 IN MAIN MODE  ).
  3. INITIALIZATION PROCEDURE (MULTI-INFORMATION DISPLAY) 
    1. Turn the engine 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 3: Blinking Pattern - Tire Pressure Warning Light Output Pattern
    G05629752Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    • The initialization can be confirmed through the multi-information display.
      Fig 4: Identifying Multi-Information Screen Display
      G05629755Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    • The order in which the data is received is random.
    • If the signals from all the wheels are received, the initialization is complete.
    • 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 (See DTC C2121/21 NO SIGNAL FROM TRANSMITTER ID1 IN MAIN MODE  ).
    NOTE:
    • If the initialization has not been completed successfully, DTC C2177/77 is stored 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 13 (TC) and 4 (CG) of the DLC3.
    • While in test mode, the system will not change to initialization mode even if the tire pressure warning reset switch is pushed.
    Fig 5: Identifying DLC3 Connector Terminals
    G05629753Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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