DESCRIPTION Initialization is necessary if one of the following occurs:
- The tire pressure warning ECU and receiver is replaced.
- A tire pressure warning valve and transmitter is replaced.
- Tires with different standard tire pressures are installed.
- The tires are rotated.
- A new vehicle is delivered.
Tire pressure warning
initialization is performed when the power switch is on (IG), "Set
Pressure" is selected on the multi-information display and the "OK"
switch (steering pad switch assembly) is pressed and held. When
an initialization request signal is received, the tire pressure warning
ECU and receiver blinks the tire pressure warning light in the
combination meter assembly 3 times and registers the tire pressure
information sent from the tire pressure warning valve and transmitters. |
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
Note | | C2177 |
Initialization not Completed |
All conditions below are met:
- During initialization
- Tire pressure warning valve and transmitter is not in stop mode
- Signal is not received from tire pressure warning valve and transmitter for 20 minutes or more
- Vehicle speed is more than 40 km/h (25 mph) for 20 minutes or more
|
- Tire pressure warning valve and transmitter
- Wire harness or connector
- Tire pressure warning ECU and receiver
| - | CAUTION / NOTICE / HINT
NOTICE:
- When replacing the tire pressure warning ECU and receiver or tire
pressure warning valve and transmitter, read the transmitter IDs and
number of the transmitters (4 or 5) stored in the old ECU using the
Techstream 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.
- If initialization is performed using the Techstream when the Data List
is displayed for 10 minutes or more, initialization will not complete
and the tire pressure warning ECU and receiver stores DTC C2177.
PROCEDURE |
1. | CHECK FREQUENCY RECEIVING CONDITION |
(a) Check that the following conditions are not met: (1) Facilities or devices that use similar radio frequencies are located in the vicinity of the vehicle.
HINT: If
the vehicle is located in an area such as the one described above, the
tire pressure warning light may illuminate after blinking for 1 minute
due to interfering radio frequencies. (2) Devices using similar radio frequencies are used in the vehicle.
OK: Facilities or devices that use similar radio frequencies are not located in the vicinity of the vehicle.
HINT: Radio transmissions may be interrupted due to the surroundings, or devices installed by the user.
| NG |
 | CHECK IF ANY DEVICE IS INSTALLED BY USER |
|
OK |
 | |
| 2. |
PERFORM INITIALIZATION | (a) Perform initialization.
Click here
|
NEXT | |
| |
| 3. |
CONFIRM TIRE INFLATION PRESSURE (DATA LIST) |
(a) Turn the power switch off. (b) Connect the Techstream to the DLC3.
(c) Turn the power switch on (IG). (d) Turn the Techstream on. (e) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(f) Read the Data List according to the display on the Techstream. 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.*1 | |
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.*1 | |
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.*1 | |
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) / 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.*1 |
HINT:
- *1: It may take a few minutes until the values are displayed.
- When an "ID Tire Inflation Pressure" value 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
value.
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 |
|
Result | Proceed to | |
All tire pressure readings are equal to specified values. |
A | | Tire pressure values are not displayed. |
B |
| A |
| END |
| B |
| GO TO DTC (C2121 TO C2124) | |
