Dtc C2141/41 Transmitter Id1 Error

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

DESCRIPTION

INSPECTION PROCEDURE

IDENTIFY TRANSMITTER CORRESPONDING TO DTC

REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER

REGISTRATION OF TRANSMITTER ID

CONFIRM TIRE INFLATION PRESSURE (DATA LIST)

DTC C2141/41 Transmitter ID1 Error

DTC C2142/42 Transmitter ID2 Error

DTC C2143/43 Transmitter ID3 Error

DTC C2144/44 Transmitter ID4 Error


DESCRIPTION

The tire pressure warning valves and transmitters that are installed in the tire and wheel assemblies measure the air pressure of the tires. The measured values are transmitted to the tire pressure warning antenna and receiver on the body as radio waves and then sent to the tire pressure warning ECU. The ECU compares the measured air pressure values with the air pressure threshold. When the measured air pressure value is less than this threshold, the warning light in the combination meter turns on.
When the internal circuit of a tire pressure warning valve and transmitter is malfunctioning, one of these DTCs is output.

DTC No.
DTC Detection Condition
Trouble Area
C2141/41
C2142/42
C2143/43
C2144/44
If an "ERROR" signal is received 3 times consecutively, the tire pressure warning valve and transmitter will be judged as defective and a DTC will be output.
This will happen in situations where the inflation pressure is outside the range -100 to 537.5 kPa (-1 to 5.4 kgf/cm2, -14 psi to 78 psi), the temperature inside the tire is outside the specified range -40 to 120°C (-40 to 253°F), or an error occurs in the tire pressure warning valve and transmitter or the surrounding area.
  1. Tire pressure warning valve and transmitter
  2. Tire pressure warning ECU
HINT:
It is necessary to perform the procedure to identify the tire pressure warning valve and transmitter that is malfunctioning because it cannot be identified by the output DTC.

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 CORRESPONDING TO DTC

  1. Set the tire pressure to the specified value (YARIS_NCP93 RM000000OQN01JX.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. Display the "ID Tire Inflation Pressure" data for each wheel using the Techstream.

  1. Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kgf/cm2, 5.8 psi) within 30 seconds. If "ID Tire Inflation Pressure" data displayed on the Techstream (ID1 to ID4) does not change, the tire pressure warning valve and transmitter corresponding to the unchanged "ID Tire Inflation Pressure" data was the cause of the output DTC.

    HINT:
    1. Identify the malfunctioning tire pressure warning valve and transmitter by repeatedly decreasing the tire pressure for each tire.
    2. Record which "ID Tire Inflation Pressure" data (ID1 to ID4) corresponds to which tire.

    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. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24 (YARIS_NCP93 RM000000ZUQ07CX.html).

  1. Check the Data List.

    Result
    Result
    		Detection Condition
    One of "Tire Inflation Pressure" data (ID1 to ID4) changed.
    		Normal
    "Tire Inflation Pressure" data did not change.
    		Transmitter corresponding to DTC

    NOTICE:
    1. When "ID Tire Inflation Pressure" data has not changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270°. Then forcibly transmit the transmitter ID and recheck.
    2. Record the transmitter ID and position of transmitters that are normal.

  1. When the "ID Tire Inflation Pressure" data (ID1 to ID4) has changed, repeat this procedure to identify the tire pressure warning valve and transmitter that corresponds to the DTC.

  1. When all of the "ID Tire Inflation Pressure" data (ID1 to ID4) has changed, identify the malfunctioning tire pressure warning valve and transmitter using recorded ID numbers and output DTC.

  1. Set the tire pressures to the appropriate specified values (YARIS_NCP93 RM000000OQN01JX.html).


NEXT


2.REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER

  1. Replace the identified tire pressure warning valve and transmitter with a new one (YARIS_NCP93 RM000001F7R03BX.html).

    HINT:
    1. Before installing a new tire pressure warning valve and transmitter, read and write down its transmitter ID.
    2. The IDs for the tire pressure warning valves and transmitters that are not replaced should be checked using the tester and recorded.

NEXT


3.REGISTRATION OF TRANSMITTER ID

  1. Register the transmitter ID for all wheels (YARIS_NCP93 RM000000XN107JX.html).


NEXT


4.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

REPLACE TIRE PRESSURE WARNING ECU (YARIS_NCP93 RM0000024T801VX.html)