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.
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- 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.
- 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 C2124/24.
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HINT:
For
this vehicle, data reception from the tire pressure warning valve and
transmitter may worsen while displaying the Data List and it may takes
longer than usual to receive data.
If data
reception worsens while displaying the Data List, rapidly decrease the
tire pressure by 20 to 30 kPa (this increases the valve transmission
frequency).
- If initialization has not been completed successfully, DTC C2177/77 is
stored after a vehicle speed of 40 km/h (25 mph) or more continues for
20 minutes or more.
- During test mode (signal check mode), the system will not change to
initialization mode even if the initialization procedure is performed.
- Tire Inflation Pressure Display Function:
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.
- Initialization will not complete and DTC C2177/77 may be stored in the
tire pressure warning ECU and receiver if the Techstream is used to
perform initialization with the ECU Data Item list displayed for 10
minutes or longer.
- Initialization can be terminated by connecting terminals 13 (TC) and 4 (CG) of the DLC3.
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 here HINT: 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.
INITIALIZATION PROCEDURE (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.
|
*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) With the ignition switch ON, wait for approximately 5 minutes. HINT:
For
this vehicle, it may take longer than usual to receive data from the
tire pressure warning valve and transmitter while the Data List is
displayed. Therefore, before displaying the Data List, wait
approximately 5 minutes to receive data from the tire pressure warning
valve and transmitter. (d) Turn the ignition switch off. (e) Connect the Techstream to the DLC3.
(f) Turn the ignition switch to ON and the Techstream 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) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 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) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 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) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi) |
Actual tire inflation pressure |
If N/A is displayed, data has not been received.* | |
ID 3 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) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 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 ID4 on the Data List.
(h) Check that initialization has been completed. (i) Confirm that the tire pressure data of all tires is displayed on the Techstream screen. |
