Dtc C2126/26 Transmitter Id Not Received In Main Mode

Suspension. Yaris. Ncp93, 131
Tire Pressure Monitoring. Yaris. Ncp93, 131

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

IDENTIFY TRANSMITTER NOT RECEIVED

CHECK TRANSMITTER ID

REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER

REGISTRATION OF TRANSMITTER ID

CONFIRM TIRE INFLATION PRESSURE (DATA LIST)

REPLACE TIRE PRESSURE WARNING ANTENNA AND RECEIVER

CONFIRM TIRE INFLATION PRESSURE (DATA LIST)

DTC C2126/26 Transmitter ID not Received in Main Mode


DESCRIPTION

After all IDs are registered, DTC C2126/26 is set in the tire pressure warning ECU and the tire pressure warning light blinks for 1 minute and then comes on.
When the tire pressure warning ECU successfully receives radio waves from all the transmitters whose IDs are stored in the ECU, DTC C2126/26 is deleted and the tire pressure warning light goes off.

DTC No.
DTC Detection Condition
Trouble Area
C2126/26
After ID registration is completed, ECU does not receive radio waves from transmitters whose IDs are stored in ECU.
  1. ID registration failure
  2. Tire pressure warning valve and transmitter
  3. Tire pressure warning antenna and receiver
  4. Harness or connector
  5. Tire pressure warning ECU
HINT:
If the IDs stored in the tire pressure warning ECU differ from the transmitter IDs, DTC C2126/26 is set. Check that the IDs in the ECU are the same as the transmitter IDs.

WIRING DIAGRAM


Yaris. Ncp93, 131.Tire Pressure Monitoring.Tire Pressure Warning System (For Sedan). Dtc C2126/26 Transmitter Id Not Received In Main Mode


INSPECTION PROCEDURE

NOTICE:
  1. When replacing the tire pressure warning ECU, read the IDs stored in the old ECU using a Techstream and write them down before removal.
  2. It is necessary to perform registration (YARIS_NCP93 RM000000XN107JX.html) of the transmitter IDs into the tire pressure warning ECU after the ECU and/or valve and transmitter has been replaced.
1.IDENTIFY TRANSMITTER NOT RECEIVED

  1. Set the tire pressure to the appropriate specified values (YARIS_NCP93 RM000000XMK06XX.html).

  1. Turn the ignition switch off.

  1. Connect a Techstream to the DLC3.

  1. Turn the ignition switch to ON and turn the Techstream on.

  1. Enter the following menus: Chassis / Tire Pressure Monitor / Data List /

  1. Check the values by referring to the table below.

    Tire Pressure Monitor
    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:
    *: It may take about 2 or 3 minutes until the values are displayed.

  1. Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kgf/cm2, 5.8 psi) within 30 seconds.

  1. Check the Data List.

    NOTICE:
    1. It takes about 2 or 3 minutes to display the updated tire pressure data.
    2. When no "ID Tire Inflation Pressure" data has changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270°. Then rapidly release the tire pressure and recheck it.
    3. Record the "ID Tire Inflation Pressure" data transmitter ID that corresponds to each tire.

  1. After confirming that the "ID Tire Inflation Pressure" data for one tire (ID1 to ID4) has changed, repeat this procedure one by one. Identify the transmitter not received.

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


B
END
A


2.CHECK TRANSMITTER ID

  1. Turn the ignition switch off.

  1. Connect a Techstream to the DLC3.

  1. Turn the ignition switch to ON and turn the Techstream on.

  1. Enter the following menus: Chassis / Tire Pressure Monitor / Data List /

  1. Check the values by referring to the table below.

    Tire Pressure Monitor
    Tester Display
    		Measurement Item/Display
    		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.


  1. Check the ID number on the identified transmitter by removing it from the tire and wheel.


    Yaris. Ncp93, 131.Tire Pressure Monitoring.Tire Pressure Warning System (For Sedan). Dtc C2126/26 Transmitter Id Not Received In Main Mode

  1. Confirm that the ID number on the transmitter and recorded transmitter ID match.

    Result
    Result
    		Proceed to
    Match
    		A
    Do not match
    		B


B
Go to step 4
A


3.REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER

  1. Replace the tire pressure warning valve and transmitter (YARIS_NCP93 RM000001F7R03BX.html).


NEXT


4.REGISTRATION OF TRANSMITTER ID

  1. Perform registration (YARIS_NCP93 RM000000XN107JX.html).


NEXT


5.CONFIRM TIRE INFLATION PRESSURE (DATA LIST)

  1. Turn the ignition switch off.

  1. Connect a Techstream to the DLC3.

  1. Turn the ignition switch to ON and turn the Techstream on.

  1. Enter the following menus: Chassis / Tire Pressure Monitor/ Data List /

  1. Check the values by referring to the table below.

    Tire Pressure Monitor
    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:
    1. *: It may take about 2 or 3 minutes until the values are displayed.
    2. When no "ID Tire Inflation Pressure" data has changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270°. Then rapidly release the tire pressure and recheck it.

    Result
    Result
    		Proceed to
    Tire pressure values are not displayed.
    		A
    All tire pressure readings are equal to specified values.
    		B


B
END
A


6.REPLACE TIRE PRESSURE WARNING ANTENNA AND RECEIVER

  1. Replace the tire pressure warning antenna and receiver (YARIS_NCP93 RM0000024T600XX.html).


NEXT


7.CONFIRM TIRE INFLATION PRESSURE (DATA LIST)

  1. Turn the ignition switch off.

  1. Connect a Techstream to the DLC3.

  1. Turn the ignition switch to ON and turn the Techstream on.

  1. Enter the following menus: Chassis / Tire Pressure Monitor / Data List /

  1. Check the values by referring to the table below.

    Tire Pressure Monitor
    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:
    1. *: It may take about 2 or 3 minutes until the values are displayed.
    2. When no "ID Tire Inflation Pressure" data has changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270°. Then rapidly release the tire pressure and recheck it.

    Result
    Result
    		Proceed to
    All tire pressure readings are equal to specified values.
    		A
    Tire pressure values are not displayed.
    		B


B
REPLACE TIRE PRESSURE WARNING ECU (YARIS_NCP93 RM0000024T801VX.html)
A

END