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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 43 (Tire Pressure Warning System) >> Tire Pressure Warning System >> DTC C2121/21 No Signal from Transmitter ID1 in Main Mode; DTC C2122/22 No Signal from Transmitter ID2 in Main Mode; DTC C2123/23 No Signal from Transmitter ID3 in Main Mode; DTC C2124/24 No Signal from Transmitter ID4 in Main Mode; DTC C2131/31 No Signal from Transmitter ID1 in 2nd Mode; DTC C2132/32 No Signal from Transmitter ID2 in 2nd Mode; DTC C2133/33 No Signal from Transmitter ID3 in 2nd Mode; DTC C2134/34 No Signal from Transmitter ID4 in 2nd Mode; DTC C2181/81 Transmitter ID1 not Received (Test Mode DTC); DTC C2182/82 Transmitter ID2 not Received (Test Mode DTC); DTC C2183/83 Transmitter ID3 not Received (Test Mode DTC); DTC C2184/84 Transmitter ID4 not Received (Test Mode DTC) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • When replacing the tire pressure warning ECU and receiver, read the transmitter IDs stored in the old ECU using the Techstream and note them down before removal.
  • It is necessary to perform the initialization (See INITIALIZATION  ) after the registration (See REGISTRATION  ) of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU and/or one of the valve and transmitters have been replaced.
  1. CHECK FREQUENCY RECEIVING CONDITION 
    1. Check that the vehicle is not located in an area described below.
      1. Facilities or devices that use similar radio frequencies are located in the vicinity of the vehicle.

        HINT:

        If the vehicle is located in an area described above, the tire pressure warning light may come on only in a particular area.

      2. Devices using similar radio frequencies are used in the vehicle

        OK: Facilities, or devices that use similar radio frequencies are not located in the vicinity of the vehicle. 

        HINT.

        Radio frequencies may be interrupted due to surroundings or devices installed by the user

    NG: CHECK IF ANY DEVICE IS INSTALLED BY USER 

    OK: Go to next step 

  2. IDENTIFY TRANSMITTER CORRESPONDING TO DTC 
    1. Set the tire pressure of all the wheels to the specified value (See TIRE PRESSURE WARNING SYSTEM  ).
    2. Turn the engine switch off.
    3. Connect the Techstream to the DLC3
    4. Turn the engine switch on (IG)
    5. Turn the Techstream on.
    6. Check the values by referring to the table below Enter the following menus. Chassis / Tire Pressure Monitor / Data List.

      Tire Pressure Monitor 

      DATA LIST

      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 0 kgf/cm2 , -14 psi) max Absolute pressure/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID2 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1.
      ID3 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID4 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      HINT:
      *1: It may take about 2 or 3 minutes until the values are displayed.
    7. Rapidly reduce the tire pressure for each wheel at least 40 kPa (0 4 kg/cm2 , 5.8 psi) within 30 seconds
    8. Check the Data List.
      NOTE:
      • It takes about 2 or 3 minutes to display the updated tire pressure data.
      • If "ID Tire Inflation Pressure" data has not changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270 degrees. Then rapidly reduce the tire pressure and recheck it.
      • Record the transmitter ID of which "ID Tire Inflation Pressure" data corresponds to each tire.
    9. After confirming that one of "ID Tire Inflation Pressure" data for one tire (ID1 to ID4) has changed, repeat this procedure one by one. Identify the transmitter that corresponds to the DTC.

      Result 

      RESULT REFERENCE

      Condition Proceed to
      All abnormal A
      One or more of transmitters abnormal B
      All normal C

    B: Go to step  4

    C: END 

    A: Go to next step 

  3. SWITCH TIRE PRESSURE WARNING SELECT SWITCH 
    1. Switch tire pressure warning select switch to the other position (MAIN to 2nd or 2nd to MAIN).
    2. Set the tire pressure of all the wheels to the specified value (See TIRE PRESSURE WARNING SYSTEM  )
    3. Turn the engine switch off.
    4. Connect the Techstream to the DLC3.
    5. Turn the engine switch on (IG).
    6. Turn the Techstream on.
    7. Check the values by referring to the table below. Enter the following menus. Chassis / Tire Pressure Monitor / Data List.

      Tire Pressure Monitor 

      DATA LIST

      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 0 kgf/cm2 , -14 psi) max Absolute pressure/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID2 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID3 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID4 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      HINT:
      *1: It may take about 2 or 3 minutes until the values are displayed.
    8. Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kg/cm2 , 5.8 psi) within 30 seconds.
    9. Check the Data List
      NOTE:
      • It takes about 2 or 3 minutes to display the updated tire pressure data.
      • If "ID Tire Inflation Pressure" data has not changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270 degrees. Then rapidly reduce the tire pressure and recheck it.
      • Record the transmitter ID of which "ID Tire Inflation Pressure" data corresponds to each tire.
    10. After confirming that one of "ID Tire Inflation Pressure" data for one tire (ID1 to ID4) has changed, repeat this procedure one by one. Identify the transmitter that corresponds to the DTC.

      Result 

      RESULT REFERENCE

      Condition Proceed to
      All abnormal A
      All normal B

    B: END 

    A: Go to next step 

  4. RETURN TIRE PRESSURE WARNING SELECT SWITCH TO ORIGINAL POSITION 
  5. CHECK TRANSMITTER ID 
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3
    3. Turn the engine switch on (IG).
    4. Turn the Techstream on
    5. Check the values by referring to the table below. Enter the following menus. Chassis / Tire Pressure Monitor / Data List.

      Tire Pressure Monitor 

      DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Registered ID1 Code Registered ID1 code/ min 0 max FFFFFFF* The ID No registered in the transmitter ID1 is displayed * Displayed only when the ID No is not registered
      Registered ID2 Code Registered ID2 code/ min 0 max FFFFFFF* The ID No registered in the transmitter ID2 is displayed * Displayed only when the ID No is not registered
      Registered ID3 Code Registered ID3 code/ min 0 max FFFFFFF* The ID No registered in the transmitter ID3 is displayed * Displayed only when the ID No is not registered
      Registered ID4 Code Registered ID4 code/ min 0 max FFFFFFF* The ID No registered in the transmitter ID4 is displayed * Displayed only when the ID No is not registered
    6. Check the ID number on the identified transmitter by removing it from the tire and wheel.
      Fig 1: Identifying Tire Pressure Warning Valve And Transmitter
      G05751367Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Confirm that the ID number on the transmitter and recorded transmitter ID match.

      Result 

      RESULT REFERENCE

      Result Proceed to
      Match A
      Do not match B

    B: Go to step  8

    A: Go to next step 

  6. REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER 
    1. Replace the tire pressure warning valve and transmitter (See REMOVAL  )
  7. REGISTRATION OF TRANSMITTER ID 
    1. Perform registration (See REGISTRATION  )
  8. PERFORM INITIALIZATION 
    1. Perform initialization (See INITIALIZATION  )
  9. READ VALUE USING TECHSTREAM (TIRE INFLATION PRESSURE) 
    1. Set the tire pressure of all wheels to the specified value (See TIRE PRESSURE WARNING SYSTEM  )
    2. Turn the engine switch off
    3. Connect the Techstream to the DLC3
    4. Turn the engine switch on (IG)
    5. Turn the Techstream on.
    6. Check the values by referring to the table below Enter the following menus. Chassis / Tire Pressure Monitor/ Data List.

      Tire Pressure Monitor 

      DATA LIST

      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 0 kgf/cm2 , -14 psi) max Absolute pressure/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID2 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID3 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID4 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      HINT
      • *1. It may take about 2 or 3 minutes until the values are displayed
      • If "ID Tire Inflation Pressure" data has not changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270 degrees Then rapidly reduce the tire pressure and recheck it

      Result 

      RESULT REFERENCE

      Condition Proceed to
      All abnormal A
      All normal B

    B: END 

    A: Go to next step 

  10. REPLACE TIRE PRESSURE WARNING ANTENNA 
    1. Replace the tire pressure warning antenna (See REMOVAL  )
  11. READ VALUE USING TECHSTREAM (TIRE INFLATION PRESSURE) 
    1. Set the tire pressure of all the wheels to the specified value (See TIRE PRESSURE WARNING SYSTEM  )
    2. Turn the engine switch off
    3. Connect the Techstream to the DLC3
    4. Turn the engine switch on (IG)
    5. Turn the Techstream on
    6. Check the values by referring to the table below. Enter the following menus Chassis / Tire Pressure Monitor / Data List

      Tire Pressure Monitor 

      DATA LIST

      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 0 kgf/cm2 , -14 psi) max Absolute pressure/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID2 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID3 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      ID4 Tire Inflation Pressure 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/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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*1
      HINT
      • *1 It may take about 2 or 3 minutes until the values are displayed.
      • If "ID Tire Inflation Pressure" data has not changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270 degrees Then rapidly reduce the tire pressure and recheck it

      Result 

      RESULT REFERENCE

      Condition Proceed to
      All normal A
      All abnormal B

    B: REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER  (See REMOVAL  )

    A: END 

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