Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - TIRE PRESSURE MONITORING
TIRE PRESSURE WARNING SYSTEM - DIAGNOSIS SYSTEM
| CHECK WARNING LIGHT |
- NOTICE:
Turn the engine switch on (IG).
| *1 | Tire Pressure Warning Light |
Check that the tire pressure warning light illuminates for 3 seconds.
| WHAT TO CONSIDER WHEN TIRE PRESSURE WARNING LIGHT ILLUMINATES |
When the tire pressure warning light does not go off, or when it illuminates during driving, check the tire pressure. If the tire pressure warning light illuminates within several hours after adjusting the tire pressure, the tire may have a slow air leak.
The system is disabled in the following conditions (when the condition becomes normal, the system will work properly).
When all of the tires and wheels that have the tire pressure warning valve and transmitters registered with the tire pressure warning ECU and receiver have not been installed.
When all of the transmitter ID codes are not registered with the tire pressure warning ECU and receiver.
When the tire pressure is abnormally high (absolute pressure: 480 kPa (4.9 kgf/cm2, 70 psi) or more; relative pressure: 380 kPa (3.9 kgf/cm2, 55 psi) or more).
When the tire pressure warning valve and transmitter battery is depleted.
The system may become disabled in the following conditions (when the condition becomes normal, the system will work properly).
When electric devices or facilities using similar radio frequencies are nearby.
When a wireless device or other equipment operating at a similar frequency is in use in the vehicle.
When a window tint that affects radio wave signals is installed.
When there is a lot of snow or ice on the vehicle, in particular, around the wheels or wheel housing.
When non-genuine wheels are used.
When tire chains are used.
When aftermarket tire repair sealant is used.
- CAUTION:
- After use of tire repair sealant, replacement of the tire pressure warning valve and transmitter is required to ensure normal system operation. (Normal system operation cannot be ensured by only repairing or replacing the tire.)
| TIRE PRESSURE WARNING LIGHT AND INDICATOR CHART |
- HINT:
- The table below indicates the state of the tire pressure warning light after the engine switch is turned on (IG).
| Immediately after turning the engine switch on (IG) | Always | |||||||
| Warning light output pattern | ||||||||
| Illuminates for 3 sec. | Goes off | Illuminates | Blinks*1 | Blinks*2 | Blinks*3 | Blinks*4 | Outputs DTC | |
| Normal | ○ | ○ | - | - | - | - | - | - |
| Low tire pressure | ○ | - | ○ | - | - | - | - | - |
| System failure | ○ | - | - | ○ | - | - | - | - |
| Test mode (signal check mode) | ○ | - | - | - | ○ | - | - | - |
| Initialization | ○ | - | - | - | - | ○ | - | - |
| ECU connector poorly connected | - | - | - | ○ | - | - | - | - |
| TC grounded (DTC is output) | ○ | - | - | - | - | - | - | ○ |
| TC grounded (DTC is not output) | ○ | - | - | - | - | - | ○ | - |
| ID code being verified | ○ | - | - | ○ | - | - | - | - |
| *a | ON |
| *b | OFF |
| *c | 0.5 sec. |
| *d | 1 minute |
| *a | ON |
| *b | OFF |
| *c | 0.125 sec. |
| *a | ON |
| *b | OFF |
| *c | 1 sec. |
| *a | ON |
| *b | OFF |
| *c | 0.25 sec. |
| Normal mode DTCs |
DTCs are stored in the tire pressure warning ECU and receiver and output by the blinking of the tire pressure warning light or by using the GTS ().
| Test mode (signal check mode) DTCs |
By switching from normal mode into test mode (input signal check), you can inspect the tire pressure warning ECU and receiver, each tire pressure warning valve and transmitter, tire pressure warning reset switch and vehicle speed signal ().
| FAIL-SAFE FUNCTION |
When a system malfunction occurs in the tire pressure warning system, the tire pressure warning light illuminates after blinking for 1 minute to inform the driver of the system failure.
The result of this diagnosis code is stored in the tire pressure warning ECU and receiver.