RM35X0E _53 Suspension _078885 TIRE PRESSURE MONITORING _0382739 TIRE PRESSURE WARNING SYSTEM D

TIRE PRESSURE MONITORING  TIRE PRESSURE WARNING SYSTEM  INITIALIZATION  


NOTICE:
·

Initialization can be confirmed through the tire pressure warning light.

·

If the ignition switch is turned off during initialization, the tire pressure warning ECU and receiver memorizes that initialization was being performed. Therefore, it is not necessary to perform the initialization procedure again after turning the ignition switch to ON.

·

The order in which the data is received is random.

·

If the signals from all the tire pressure warning valve and transmitters are received, initialization is completed.

·

Initialization is completed when the Data List "ID Tire Inflation Pressure" display shows the correct pressures.

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>DATA LIST / ACTIVE TEST

·

Initialization is normally completed within a few minutes.

However, it may take 10 minutes or more until the tire pressure of the tire inflation pressure display function is shown (w/ Tire Inflation Pressure Display Function).

·

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 to C2125.

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>C2121

·

If initialization has not been completed successfully, DTC C2177 is stored after a vehicle speed of 40 km/h (25 mph) or more is detected for 20 minutes or more.

·

During test mode (sensor check mode), the system will not change to initialization mode even if the initialization procedure is performed.

·

If initialization is performed, the existing tire positions will be cleared, but will be automatically identified when the vehicle is driven at 40 km/h (25 mph) or more for 10 to 30 minutes (w/ Tire Inflation Pressure Display Function).

·

If the Data List is displayed for 10 minutes or more using the GTS during initialization, initialization will not complete and the tire pressure warning ECU and receiver will output DTC C2177.

·

w/ ID Switching Function:

While the answer-back function for the ID switching function is operating, the system will not change to initialization mode even if the initialization procedure is performed.



BEFORE INITIALIZATION


a.

Set the tire pressure to the specified value.

NOTICE:

Refer to the link as the procedure for adjusting the tire pressures differs depending on the temperature of the tires.

Click hereSuspension>TIRE / WHEEL>TIRE AND WHEEL SYSTEM>INSPECTION




INITIALIZATION PROCEDURE


HINT:

for FMVSS138 Type:

The tire pressure warning system illuminates the tire pressure warning light to warn the driver when any of the following condition is met:

·

Due to the operation of the tire pressure warning reset switch, the tire pressure drops to approximately 75% or less of the tire pressure set during system initialization.


for ECE-R64 Type:

The tire pressure warning system illuminates the tire pressure warning light to warn the driver when any of the following conditions are met:

·

Due to the operation of the tire pressure warning reset switch, the tire pressure drops to approximately 80% or less of the tire pressure set during system initialization.

·

The tire pressure drastically decreases (approximately 20 kPa (0.2 kgf/cm2, 2.9 psi) or more within several minutes) to approximately 80% or less of the tire pressure* when the tires are warmed.

*: If initialization is performed and the vehicle is driven for a certain period of time, the tire pressure set during system initialization is adjusted and set to the tire pressure when the tires are warmed from the driving conditions.

NOTICE:

If the tire pressure is decreased approximately 20 kPa (0.2 kgf/cm2, 2.9 psi) or more in order to adjust the tire pressure, even if the adjusted tire pressure is 80% or more than the tire pressure set during system initialization, the tire pressure warning light may illuminate if the tire pressure drops below 80% of the tire pressure set when the tires are warmed. In this case, perform initialization again.




a.

Turn the ignition switch to ON.


b.

Press and hold the tire pressure warning reset switch for 3 seconds or more so that the tire pressure warning light blinks 3 times.

C418308C01
0.177,0.104 0.552,0.333 0.375,0.229 12 false *A 3.979,0.115 4.333,0.313 0.354,0.198 12 false *B 0.99,0.135 1.302,0.292 0.313,0.156 10 false *1 2.49,1.583 2.802,1.74 0.313,0.156 10 false *2 0.635,2.406 0.948,2.563 0.313,0.156 10 false *a 1.01,2.979 1.323,3.135 0.313,0.156 10 false *c 1.01,3.177 1.323,3.333 0.313,0.156 10 false *d 4.396,1.583 4.708,1.74 0.313,0.156 10 false *2 5.177,0.146 5.49,0.302 0.313,0.156 10 false *1 1.875,2.552 2.188,2.708 0.313,0.156 10 false *b 1.656,3.583 1.969,3.74 0.313,0.156 10 false *b 5.104,3.594 5.417,3.75 0.313,0.156 10 false *b 5.302,2.552 5.615,2.708 0.313,0.156 10 false *b 4.479,2.969 4.792,3.125 0.313,0.156 10 false *c 4.479,3.156 4.792,3.313 0.313,0.156 10 false *d 4.146,2.531 4.458,2.688 0.313,0.156 10 false *a
*A for LHD *B for RHD
*1 Tire Pressure Warning Light *2 Tire Pressure Warning Reset Switch
*a Tire Pressure Warning Light Output Pattern *b 1 sec.
*c ON *d OFF



c.

Turn the ignition switch off.


d.

Connect the GTS to the DLC3.


e.

Turn the ignition switch to ON.


f.

Turn the GTS on.


g.

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

Chassis > Tire Pressure Monitor > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
ID 1 Tire Inflation Pressure ID1 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) / 900 kPa (9.2 kgf/cm2, 131 psi), Relative pressure (Gauge) / 800 kPa (8.2 kgf/cm2, 116 psi) 		Actual tire inflation pressure If N/A is displayed, data has not been received.*
ID 2 Tire Inflation Pressure ID2 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) / 900 kPa (9.2 kgf/cm2, 131 psi), Relative pressure (Gauge) / 800 kPa (8.2 kgf/cm2, 116 psi) 		Actual tire inflation pressure If N/A is displayed, data has not been received.*
ID 3 Tire Inflation Pressure ID3 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) / 900 kPa (9.2 kgf/cm2, 131 psi), Relative pressure (Gauge) / 800 kPa (8.2 kgf/cm2, 116 psi) 		Actual tire inflation pressure If N/A is displayed, data has not been received.*
ID 4 Tire Inflation Pressure ID4 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) / 900 kPa (9.2 kgf/cm2, 131 psi), Relative pressure (Gauge) / 800 kPa (8.2 kgf/cm2, 116 psi) 		Actual tire inflation pressure If N/A is displayed, data has not been received.*
ID 5 Tire Inflation Pressure ID5 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) / 900 kPa (9.2 kgf/cm2, 131 psi), Relative pressure (Gauge) / 800 kPa (8.2 kgf/cm2, 116 psi) 		Actual tire inflation pressure If N/A is displayed, data has not been received.*
HINT:
·

*: It may take a few minutes until the values are displayed.

·

The wheel position cannot be determined from ID1 through ID5 on the Data List.



Chassis > Tire Pressure Monitor > Data List
Tester Display
ID 1 Tire Inflation Pressure
ID 2 Tire Inflation Pressure
ID 3 Tire Inflation Pressure
ID 4 Tire Inflation Pressure
ID 5 Tire Inflation Pressure
50003 203 36,37,38,39,40

h.

Check that initialization has been completed.


i.

Confirm that the tire pressure data of all tires is displayed on the GTS screen.