DESCRIPTION
Each tire pressure warning valve and transmitter measures the internal temperature of its tire as well as the tire pressure and transmits the information to the tire pressure warning ECU along with the transmitter ID. If the measured temperature is out of the specified range, the tire pressure warning ECU recognizes it as a malfunction and stores DTCs, and the tire pressure warning light blinks for 1 minute and then remains on.
DTC Code |
Detection Condition |
Trouble Area |
---|---|---|
C2165/65 C2166/66 C2167/67 C2168/68 C2169/69* |
The temperature inside the tire is detected as being higher than 119°C (246°F) 255 times consecutively. |
|
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.
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK TIRES |
(a) Check that the tires are not flat and have no indication of air pressure drop.
OK:
Tires are normal.
HINT:
If a tire is damaged, the tire pressure warning valve and transmitter may also have been damaged at the same time.
NG |
REPLACE TIRE AND TIRE PRESSURE WARNING VALVE AND TRANSMITTER |
|
2. |
IDENTIFY TRANSMITTER CORRESPONDING TO DTC |
(a) Set the tire pressure of all tires to the specified value (See page ).
(b) Turn the ignition switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch to ON.
(e) Turn the Techstream on.
(f) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(g) Check the "ID Tire Inflation Pressure" data for each wheel using the Techstream.
(h) Rapidly reduce the tire pressure of each tire by at least 40 kPa (0.4 kgf/cm2, 5.8 psi) within 30 seconds.
(i) Check the Data List.
Tire Pressure Monitor
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
ID1 Tire Inflation Pressure |
ID1 tire inflation pressure / min.: Absolute pressure 0.0 kPa (0.0 kgf/cm2, 0.0 psi), Relative pressure -100.0 kPa (-1.0 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 (0.0 kgf/cm2, 0.0 psi) is displayed for absolute pressure or -100 kPa (-1.0 kgf/ cm2, -14 psi) is displayed for relative pressure, data has not been received.*1 |
ID2 Tire Inflation Pressure |
ID2 tire inflation pressure / min.: Absolute pressure 0.0 kPa (0.0 kgf/cm2, 0.0 psi), Relative pressure -100.0 kPa (-1.0 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 (0.0 kgf/cm2, 0.0 psi) is displayed for absolute pressure or -100 kPa (-1.0 kgf/ cm2, -14 psi) is displayed for relative pressure, data has not been received.*1 |
ID3 Tire Inflation Pressure |
ID3 tire inflation pressure / min.: Absolute pressure 0.0 kPa (0.0 kgf/cm2, 0.0 psi), Relative pressure -100.0 kPa (-1.0 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 (0.0 kgf/cm2, 0.0 psi) is displayed for absolute pressure or -100 kPa (-1.0 kgf/ cm2, -14 psi) is displayed for relative pressure, data has not been received.*1 |
ID4 Tire Inflation Pressure |
ID4 tire inflation pressure / min.: Absolute pressure 0.0 kPa (0.0 kgf/cm2, 0.0 psi), Relative pressure -100.0 kPa (-1.0 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 (0.0 kgf/cm2, 0.0 psi) is displayed for absolute pressure or -100 kPa (-1.0 kgf/ cm2, -14 psi) is displayed for relative pressure, data has not been received.*1 |
ID5 Tire Inflation Pressure*2 |
ID5 tire inflation pressure/ min.: Absolute pressure 0.0 kPa (0.0 kgf/cm2, 0.0 psi), Relative pressure -100.0 kPa (-1.0 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 (0.0 kgf/cm2, 0.0 psi) is displayed for absolute pressure or -100 kPa (-1.0 kgf/ cm2, -14 psi) is displayed for relative pressure, data has not been received.*1 |
HINT:
Result |
Detection Condition |
---|---|
One of "ID Tire Inflation Pressure" data (ID1 to ID4 or ID5*) changed |
Normal |
No "ID Tire Inflation Pressure" data changed |
Transmitter corresponding to DTC |
NOTICE:
(j) When an "ID Tire Inflation Pressure" data value (ID1 to ID4 or ID5*) has changed, repeat this procedure for each tire.
(k) When all of the "ID Tire Inflation Pressure" data (ID1 to ID4 or ID5*) has changed, identify the malfunctioning tire pressure warning valve and transmitter using the recorded ID numbers and output DTC.
|
3. |
REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER |
(a) Replace the identified tire pressure warning valve and transmitter with a
new one (See page
).
HINT:
|
4. |
PERFORM REGISTRATION OF TRANSMITTER ID |
(a) Register the transmitter IDs for all wheels (See page ).
|
5. |
CONFIRM TIRE INFLATION PRESSURE (DATA LIST) |
A |
END |
B |
REPLACE TIRE PRESSURE WARNING ECU |
Illumination Circuit
DESCRIPTION
Power is supplied to the navigation receiver assembly and steering pad switch
assembly illumination when the light control switch is in the tail or head position.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
The vehicle is equipp ...
Folding down the rear seats (vehicles without third row seats)
Before folding down the rear seats
Adjust the head restraints to the downmost position.
Fold down the head restraints.
When returning the head restraints to their original positions, make sure
they are locked securely.
Stow the rear seat belt buckl ...