DIAGNOSIS SYSTEM
CHECK WARNING LIGHT
NOTICE:
Click here
(a) Turn the ignition switch to ON.
*1 |
Tire Pressure Warning Light |
(b) Check that the tire pressure warning light illuminates for 3 seconds.
WHAT TO CONSIDER WHEN TIRE PRESSURE WARNING LIGHT ILLUMINATES
(a) 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, a tire may have a slow air leak.
(b) The system is disabled under the following conditions (when the condition returns to normal, the system will work properly).
(1) When all of the tire and wheel assemblies that have tire pressure warning valve and transmitters registered with the tire pressure warning ECU and receiver have not been installed.
(2) When all of the transmitter ID codes are not registered with the tire pressure warning ECU and receiver.
(3) 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).
(4) When the tire pressure warning valve and transmitter battery is depleted (Battery life is 10 years).
(c) The system may be disabled under the following conditions (when the condition returns to normal, the system will work properly).
(1) When electric devices or facilities using similar radio frequencies are nearby.
(2) When a wireless device or other equipment operating at a similar frequency is in use in the vehicle.
(3) When a window tint that affects radio wave signals is installed.
(4) When there is a lot of snow or ice on the vehicle, in particular, around the wheels or wheel housing.
(5) When non-genuine wheels are used.
(6) When tire chains are used.
(7) When aftermarket tire repair sealant is used.
CAUTION:
*a |
Tire repair sealant |
TIRE PRESSURE WARNING LIGHT AND INDICATOR CHART
HINT:
The table below indicates the state of the tire pressure warning light after the ignition switch is turned to ON.
Immediately after turning the ignition switch to ON |
Always |
||||
---|---|---|---|---|---|
Warning light output pattern |
|||||
Illuminates for 3 sec. |
Goes off |
Illuminates |
Blinks |
Outputs DTC |
|
Normal |
○ |
○ |
- |
- |
- |
Low tire pressure |
○ |
- |
○ |
- |
- |
System failure |
○ |
- |
- |
*1 |
- |
Test mode (signal check mode) |
○ |
- |
- |
*2 |
- |
Initialization |
○ |
- |
- |
*3 |
- |
ECU connector poorly connected |
- |
- |
- |
*4 |
- |
TC grounded (DTCs are output) |
○ |
- |
- |
- |
○ |
TC grounded (DTCs are not output) |
○ |
- |
- |
*5 |
- |
*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 |
0.5 sec. |
*d |
1 minute |
*e |
10 sec. |
*a |
ON |
*b |
OFF |
*c |
0.25 sec. |
NORMAL MODE DTC
(a) DTCs are stored in the tire pressure warning ECU and receiver and output by blinking the tire pressure warning light or by using the Techstream.
Click here
TEST MODE (SIGNAL CHECK MODE) DTC
(a) By switching from normal mode into test mode (signal check mode), the tire pressure warning ECU and receiver, each tire pressure warning valve and transmitter and tire pressure warning reset switch can be inspected.
Click here
Toyota CH-R Owners Manual > Tire information: Uniform Tire Quality Grading
This information has been prepared in accordance with regulations issued by the
National Highway Traffic Safety Administration of the U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Toyota vehicles with
information on uniform tire quality grading.
...
Toyota CH-R Service Manual > Automatic Light Control Sensor: Removal
REMOVAL
PROCEDURE
1. REMOVE INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY
Click here
2. REMOVE DEFROSTER NOZZLE ASSEMBLY
Click here
3. REMOVE AUTOMATIC LIGHT CONTROL SENSOR
(a) Disconnect the connector.
(b) Disengage the c ...