SYSTEM DESCRIPTION
1. DESCRIPTION OF SYSTEM
(a) Each tire pressure warning valve and transmitter is equipped with a tire pressure sensor and a transmitter and is installed in each tire and wheel assembly. The sensor measures the tire pressure. The measured value and transmitter ID are transmitted to the tire pressure warning antenna and receiver on the body as radio waves and then sent to the tire pressure warning ECU from the tire pressure warning antenna and receiver. If the transmitter ID has already been registered, the ECU compares the measured air pressure value with the standard value. When the value is less than the standard value registered in the tire pressure warning ECU, the warning light on the accessory meter comes on.
2. INITIAL CHECK
(a) After the ignition switch is turned to ON, the tire pressure warning light comes on for 3 seconds and then goes off.
HINT:
If the warning light does not come on for 3 seconds, troubleshoot the tire pressure
warning light circuit (See page ).
3. WHEN TIRE PRESSURE WARNING LIGHT IS LIT
(a) When the tire pressure warning light does not go off, or when it comes on while driving, check the tire pressure. If the tire pressure warning light comes on within several hours of adjusting the tire pressure, the tire may have a slow leak.
(b) Under the following conditions, the system may not function properly:
(1) The system will not function properly in the following conditions:
(When the condition becomes normal, the system will work properly.)
(2) The system may not function properly in the following conditions:
(When the condition becomes normal, the system will work properly.)
(c) After removing and installing the ECU or a sensor, check for DTCs.
4. FUNCTION OF COMPONENTS
Component |
Function |
---|---|
Tire pressure warning valve and transmitter |
Combined as a single unit with a tire valve, it measures tire pressure and temperature and transmits an ID number for identification. Has a built-in battery. |
Tire pressure warning antenna and receiver |
Receives signals from the transmitters and transmits them to the tire pressure warning ECU. |
Tire pressure warning ECU |
Receives a signal from the receiver and identifies it as vehicle's own signal. If the measured value is equal to or lower than the specified value, it transmits a signal to illuminate the tire pressure warning light on the accessory meter. |
Tire pressure warning light |
Located in the accessory meter, it informs the driver of low tire pressure and system failures. |
Washer Nozzle(for Front Side)
Components
COMPONENTS
ILLUSTRATION
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT FRONT WASHER NOZZLE SUB-ASSEMBLY
(a) With the engine running, check that the center stream of washer fluid sprays
on the windshield within the ar ...
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable
is reconnected (See page ).
2. REMOVE REAR DOOR INSIDE HANDLE BEZEL PLUG
3. REMOVE REAR P ...
Disposal
DISPOSAL
PROCEDURE
1. DISPOSE OF FRONT SHOCK ABSORBER ASSEMBLY
(a) Position the front shock absorber assembly level with the piston
rod fully extended. Using a drill, make a hole in the cylinder between A
and B as shown in the illustratio ...