Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - TIRE PRESSURE MONITORING

DESCRIPTION

INSPECTION PROCEDURE

IDENTIFY TRANSMITTER CORRESPONDING TO DTC

REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER

REGISTRATION OF TRANSMITTER ID

PERFORM INITIALIZATION

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

DTC C2145/45 Transmitter ID5 Error

DESCRIPTION

The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressures. The measured values are transmitted as radio waves to the tire pressure warning antenna and then set to the tire pressure warning ECU and receiver. 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 assembly illuminates.


When the internal circuit of a tire pressure warning valve and transmitter is malfunctioning, one of these DTCs is output.

DTC No.DTC Detection ConditionTrouble Area
C2141/41
C2142/42
C2143/43
C2144/44
C2145/45		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 0 to 380 kPa (0 to 3.9 kgf/cm2, 0 to 55 psi), the temperature inside the tire is outside the specified range -40 to 215°C (-40 to 419°F), or an error occurs in the tire pressure warning valve and transmitter or the surrounding area.
Tire pressure warning valve and transmitter
Tire pressure warning ECU and receiver
  • HINT:
  • It is necessary to perform the following 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:
When replacing the tire pressure warning ECU and receiver, read the transmitter IDs stored in the old ECU using the GTS and write them down before removal.
It is necessary to perform initialization () after registration () of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU and/or one of the valve and transmitters has been replaced.
1.IDENTIFY TRANSMITTER CORRESPONDING TO DTC

Set the tire pressure to the specified value ().

Turn the engine switch off.

Connect the GTS to the DLC3.

Turn the engine switch on (IG).

Turn the GTS on.

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

Display the "ID Tire Inflation Pressure" data for each wheel using the GTS.

Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kg/cm2, 5.8 psi) within 30 seconds. If "ID Tire Inflation Pressure" displayed on the GTS 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:
Identify the malfunctioning tire pressure warning valve and transmitter by repeatedly decreasing the tire pressure for each tire.
Record which "ID Tire Inflation Pressure" data corresponds to each tire.
Tire Pressure Monitor
Tester DisplayMeasurement Item/RangeNormal ConditionDiagnostic Note
ID 1 Tire Inflation PressureID1 tire inflation pressure/
min.: Absolute pressure (abs)/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge)/ 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure (abs)/ 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (gauge)/ 380 kPa (3.9 kgf/cm2, 55 psi)		Actual tire inflation pressureIf N/A is displayed, data has not been received.*
ID 2 Tire Inflation PressureID2 tire inflation pressure/
min.: Absolute pressure (abs)/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge)/ 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure (abs)/ 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (gauge)/ 380 kPa (3.9 kgf/cm2, 55 psi)		Actual tire inflation pressureIf N/A is displayed, data has not been received.*
ID 3 Tire Inflation PressureID3 tire inflation pressure/
min.: Absolute pressure (abs)/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge)/ 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure (abs)/ 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (gauge)/ 380 kPa (3.9 kgf/cm2, 55 psi)		Actual tire inflation pressureIf N/A is displayed, data has not been received.*
ID 4 Tire Inflation PressureID4 tire inflation pressure/
min.: Absolute pressure (abs)/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge)/ 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure (abs)/ 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (gauge)/ 380 kPa (3.9 kgf/cm2, 55 psi)		Actual tire inflation pressureIf N/A is displayed, data has not been received.*
ID 5 Tire Inflation PressureID5 tire inflation pressure/
min.: Absolute pressure (abs)/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge)/ 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure (abs)/ 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (gauge)/ 380 kPa (3.9 kgf/cm2, 55 psi)		Actual tire inflation pressureIf N/A is displayed, data has not been received.*
  • HINT:
*: It may take a few 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 ().
The wheel position cannot be determined from ID1 through ID5 on the Data List.

Check the Data List.

  • Result:
  • ResultDetection ConditionProceed to
    "ID Tire Inflation Pressure" data did not change.Transmitter corresponding to DTCA
    One of "ID Tire Inflation Pressure" data changed.NormalB
  • NOTICE:
It may take a few minutes to display the updated tire pressure data.
When the "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 release the tire pressure and recheck the data.
Record the transmitter IDs and positions of transmitters that are normal.

When the "ID Tire inflation Pressure" data has changed, repeat this procedure to identify the tire pressure warning valve and transmitter that corresponds to the DTC.

When all of the "ID Tire Inflation Pressure" data has changed, identify the malfunctioning tire pressure warning valve and transmitter using the recorded ID numbers and output DTCs.

B
CHECK FOR INTERMITTENT PROBLEMS ()
A
2.REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER

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

  • HINT:
Before installing a new tire pressure warning valve and transmitter, read and write down its transmitter ID.
The IDs for the tire pressure warning valve and transmitters which are not replaced should be checked using the GTS and recorded.
NEXT
3.REGISTRATION OF TRANSMITTER ID

Register the transmitter ID for all wheels ().

NEXT
4.PERFORM INITIALIZATION

Perform initialization ().

NEXT
5.CONFIRM TIRE INFLATION PRESSURE (DATA LIST)

Turn the engine switch off.

Connect the GTS to the DLC3.

Turn the engine switch on (IG).

Turn the GTS on.

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

Check the values by referring to the table below.

Tire Pressure Monitor
Tester DisplayMeasurement Item/RangeNormal ConditionDiagnostic Note
ID 1 Tire Inflation PressureID1 tire inflation pressure/
min.: Absolute pressure (abs)/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge)/ 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure (abs)/ 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (gauge)/ 380 kPa (3.9 kgf/cm2, 55 psi)		Actual tire inflation pressureIf N/A is displayed, data has not been received.*
ID 2 Tire Inflation PressureID2 tire inflation pressure/
min.: Absolute pressure (abs)/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge)/ 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure (abs)/ 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (gauge)/ 380 kPa (3.9 kgf/cm2, 55 psi)		Actual tire inflation pressureIf N/A is displayed, data has not been received.*
ID 3 Tire Inflation PressureID3 tire inflation pressure/
min.: Absolute pressure (abs)/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge)/ 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure (abs)/ 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (gauge)/ 380 kPa (3.9 kgf/cm2, 55 psi)		Actual tire inflation pressureIf N/A is displayed, data has not been received.*
ID 4 Tire Inflation PressureID4 tire inflation pressure/
min.: Absolute pressure (abs)/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge)/ 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure (abs)/ 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (gauge)/ 380 kPa (3.9 kgf/cm2, 55 psi)		Actual tire inflation pressureIf N/A is displayed, data has not been received.*
ID 5 Tire Inflation PressureID5 tire inflation pressure/
min.: Absolute pressure (abs)/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge)/ 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure (abs)/ 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (gauge)/ 380 kPa (3.9 kgf/cm2, 55 psi)		Actual tire inflation pressureIf N/A is displayed, data has not been received.*
  • HINT:
*: It may take a few minutes until the values are displayed.
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 degrees. Then rapidly release the tire pressure and recheck the data.
The wheel position cannot be determined from ID1 through ID5 on the Data List.
  • Result:
  • ResultProceed 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 AND RECEIVER ()
TIRE PRESSURE MONITORING
Land Cruiser URJ200 URJ202 GRJ200 VDJ200
TIRE PRESSURE WARNING SYSTEM