Toyota Tundra. Manual — part 124

Fig. 20: Registering Transmitter ID Using Intelligent Tester (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

TPMS RESET - PROCEDURE 10

2009 Toyota Tundra

GENERAL INFORMATION Service Reminder Indicators - Toyota

Initializing Tire Pressure Monitor System

1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.

2. With vehicle stopped and parking brake applied, turn ignition switch to ON position.

3. Press and hold the tire pressure warning reset switch until the tire pressure warning light blinks 3 times at

one-second intervals.

4. Drive the vehicle at 19 MPH (30 KM/H) or more to complete the initialization of the ABS/skid control

ECU (it takes more than one hour). Vehicle should be driven under the following conditions:



The vehicle speed is between 31-62 MPH (50-100 KM/H).



The roads are dry, smooth and straight.



The number of passengers is 1 or 2 (including driver).

5. After initialization is completed, the ABS/skid control ECU monitors the tire pressure by using the wheel

speed sensors.

6. To verify the system has been initialized, check the length of time the tire pressure warning light is on

after turning the ignition switch to the ON position. Light will stay on for 3 seconds if system is
initialized, or 4 seconds if system is not initialized.

TPMS RESET - PROCEDURE 11

NOTE:

This system requires initializing after changing tires or wheels, after rotating the
tires, or when tire pressure warning light blinks twice every second. Set tire
pressure within the specified range before initializing. If the tire air pressure is
not within the specified range, tire pressure warning system will not function.
See INITIALIZING TIRE PRESSURE MONITOR SYSTEM.

CAUTION: Do not push the reset switch without adjusting tire inflation pressure.

Otherwise, the low tire pressure warning light may not come on even if the
tire pressure is low, or it may come on when the tire inflation pressure is
actually normal. If you push the reset switch while the vehicle is moving,
initialization is not performed.

NOTE:

If the tire pressure warning light does not blink, turn ignition switch to OFF
position. Perform the initialization procedure again starting at step 2. If
light still does not blink, there is a problem in the TPM system. See
appropriate manufacturer service information.

NOTE:

If the tire pressure warning light blinks at 0.25 second intervals while the
vehicle is being driven, the initialization may have failed. If so, turn ignition
switch to OFF position. Perform the initialization procedure again starting
at step 1.

NOTE:

When a tire pressure sensor and/or tire pressure monitor ECU are replaced, the

2009 Toyota Tundra

GENERAL INFORMATION Service Reminder Indicators - Toyota

Tire Pressure Monitor Warning Light

When the tire pressure warning light does not go off, or when it comes on during driving, check tire pressure
(including spare tire) and adjust as necessary. The warning light should turn off within a few minutes. If the
warning light is still on even though the tire pressure is correctly adjusted, the tire could be punctured. Repair as
necessary. If the warning light turns on within several hours after adjusting the tire pressure, the tire may have a
slow air leak. Repair as necessary. If the warning light stays on or blinks, there is a malfunction in the TPM
system. See appropriate manufacturer service information.

Under the following conditions, the system may not function properly:



The areas, facilities or devices that use similar radio wave frequencies are located in the vicinity of the
vehicle.



A radio device of similar frequency is used near the vehicle.



A lot of snow or ice is stuck to the vehicle, especially around the wheels or wheel housings.



Tires and wheels are installed that are not equipped with a tire pressure sensor.



Snow tires or tire chains are used.



The battery of the sensor has been depleted.



Wheels other than manufacturer factory wheels are used. If any other wheels than the specified ones are
used, the system may not function properly because the radio waves are differently transmitted from the
tire pressure sensor.



Radio waves from the air pressure sensor installed on the spare tire cannot be received. If this problem
has occurred, rotate spare tire 90 degrees and recheck system.



Depending on the tire type, the system may not function properly even though the specified wheels are
used.



Using a different type of tire in combination with genuine tires.



If system was initialized with tire pressures which are not the specified values.

Tire Pressure Sensor Registration

sensor ID must be memorized by the tire pressure monitor ECU. See TIRE
PRESSURE SENSOR REGISTRATION.

NOTE:

The tire pressure warning light may turn on due to natural causes such as
natural air leaks or tire pressure changes caused by temperature. In this case,
adjusting the tire pressure will turn off the warning light.

NOTE:

If warning light turned on due to very low outside temperatures (such as in
winter) causing decreases in tire pressure, adjust pressure to a higher pressure
suitable to cold conditions. Tire pressure decreases by about 1.45 psi (10 kPa)
for every 50°F (10°C) drop in ambient temperature.

NOTE:

When a tire pressure sensor and/or tire pressure monitor ECU are replaced, the
sensor ID must be memorized by the tire pressure monitor ECU. To perform this

2009 Toyota Tundra

GENERAL INFORMATION Service Reminder Indicators - Toyota

1. Set the tire pressure of all wheels (including spare tire) to pressure specified on the tire and loading

information label.

2. Connect the intelligent tester (with CAN VIM) to DLC3. See Fig. 18.

3. Turn the ignition switch to ON position.

4. Read and record the transmitter IDs (ID1 to ID5) by using the DATA LIST. See Fig. 21 and Fig. 22 .

5. Select the "REGIST TIRE" mode.

6. Select the "MAIN" registration mode.

7. Input the transmitter IDs (ID1 to ID5) using the intelligent tester and transmit it to the tire pressure

monitor ECU.

8. Set ID transmission condition to "COMPLETE".

9. When intelligent tester confirms that ID registration has successfully been completed, turn ignition switch

to OFF position.

10. Turn ignition switch to ON position. Select the "SIGNAL CHECK" mode on the intelligent tester.

11. Confirm that the transmitter IDs and the tire pressure data is displayed for all 5 tires on the intelligent

tester.

procedure, a Toyota intelligent tester (with CAN VIM) must be used. It is not
necessary to register the sensor IDs when only tire rotation is performed.

NOTE:

Before beginning registration process on vehicles where tire pressure sensors
have not been replaced, retrieve sensor transmitter IDs using intelligent tester
or by reading the ID on the tire pressure sensor. If sensor is being replaced with
a new one, make a note of the 7-digit number (transmitter ID) before installation,
as it cannot be seen after sensor is installed.

NOTE:

The previously registered IDs will be deleted from the memory when the
registration is completed.

NOTE:

If steps 4-8 are not completed within 5 minutes, the mode will return to the
normal operation mode.

NOTE:

It may take up to one minute to update the tire pressure data.

NOTE:

If the IDs have not been registered, DTC C2171/71 is set in the tire
pressure monitor ECU after about 60 minutes.

2009 Toyota Tundra

GENERAL INFORMATION Service Reminder Indicators - Toyota