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.
Text in Illustration
*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 |
|
Speaker Circuit
DESCRIPTION
If there is a short in a speaker circuit, the radio and display receiver assembly
detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is no malfunction
in the radio and display receiver asse ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVER SIDE JUNCTION
BLOCK ASSEMBLY
(a) Remove the main body ECU (multiplex network body ECU) from the driver side
junction block assembly (See page ).
(b) Measure the resistanc ...