SYSTEM DESCRIPTION
1. DESCRIPTION OF SYSTEM
(a) When the tire pressure warning system detects that the tire pressure of a tire is below the threshold, it illuminates the tire pressure warning light to warn the driver.
(b) The tire pressure warning antenna and receiver receives the transmitter ID, temperature and tire pressure information from the tire pressure warning valve and transmitters shown in the following illustration. This information is used to determine when the pressure in one of the tires has dropped.
*A |
w/ Spare Tire Pressure Warning Valve and Transmitter |
- |
- |
*1 |
Tire Pressure Warning Antenna and Receiver |
*2 |
Tire Pressure Warning Valve and Transmitter |
*3 |
Combination Meter Assembly - Tire Pressure Warning Light |
*4 |
Tire Pressure Warning ECU |
*a |
Front |
- |
- |
2. DESCRIPTION OF REGISTRATION
(a) When tires and wheels are replaced, always make sure that each transmitter ID is correctly registered.
(b) When one or more tire pressure warning valve and transmitters or the tire pressure warning ECU is replaced, the transmitter IDs for all of the tire pressure warning valve and transmitters must be reregistered. Before registering the transmitter ID of a new tire pressure warning valve and transmitter, check the Data List and record all of the transmitter IDs that are already registered.
3. FUNCTION OF MAIN COMPONENTS
Component |
Function |
---|---|
Tire Pressure Warning ECU |
|
Tire Pressure Warning Valve and Transmitter |
Detects the pressure and internal temperature of the tire and transmits the measured values and the ID code to the tire pressure warning antenna and receiver. |
Tire Pressure Warning Antenna and Receiver |
Receives the tire pressure warning valve and transmitter signal and transmits this data to the tire pressure warning ECU. |
Tire Pressure Warning Light |
|
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. CHECK AUTOMATIC LIGHT CONTROL SENSOR
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
Switch Condition
...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful bec ...