Maintenance Reminder Light Reset Procedures: Other Toyota Corolla XI

ENGINE OIL CHANGE REMINDER LIGHT

Note. To determine the appropriate reset procedure, refer to ENGINE OIL CHANGE REMINDER LIGHT RESET INDEX . Only vehicles listed in this index have an Engine Oil Change Reminder Light reset.

ENGINE OIL CHANGE REMINDER LIGHT RESET INDEX

With Smart Key System

Note. On vehicles with smart key system, make sure smart key is in the vehicle. Pressing the "ENGINE START STOP" switch changes the ignition switch mode as follows: First Time - ACC mode (accessories on). Second Time - ON mode (power on and all accessories on). Third Time - Power OFF mode (indicator light is off).

1. Place smart key system in power OFF mode with odometer display showing.
2. Place smart key system in ON mode while holding down trip meter RESET button (stem).
3. Hold trip meter RESET button (stem) down for at least 5 seconds. Odometer should indicate "000000" and MAINT reminder light goes out.

Without Smart Key System

1. Turn ignition switch to OFF position with odometer display showing.
2. Turn ignition switch to ON position while holding down trip meter RESET button (stem).
3. Hold trip meter RESET button (stem) down for at least 5 seconds. Odometer should indicate "000000" and MAINT reminder light goes out.

Using Trip Meter (Monochrome Multi-information Display)

1. Turn ignition ON.
2. Press the ODO/TRIP switch knob until the TRIP A meter appears.
3. Turn the ignition switch OFF.
4. Turn the ignition switch to ON while pressing and holding the ODO/TRIP switch knob. Hold the ODO/TRIP switch knob until TRIP A meter shows "000000" and the multi-information display shows that the reset is complete.

Using Multi-information Display (Color Display)

1. Turn the ignition switch to ON.
2. Using the steering pad switch assembly, display the SETTING display on the multi-information display.
3. Select MAINTENANCE SYSTEM from the setting display and perform initialization according to the multi-information display.
4. "Initialization Completed" will be displayed on the multi-information display when the reset procedure has finished.

OXYGEN SENSOR WARNING LIGHT

Note. To determine the appropriate reset procedure, refer to OXYGEN SENSOR WARNING LIGHT RESET INDEX . Only vehicles listed in this index have an Oxygen Sensor Warning Light reset.

OXYGEN SENSOR WARNING LIGHT RESET INDEX

TIMING BELT REMINDER LIGHT

Note. To determine the appropriate reset procedure, refer to TIMING BELT REMINDER LIGHT RESET INDEX . Only vehicles listed in this index have a Timing Belt Reminder Light reset.

TIMING BELT REMINDER LIGHT RESET INDEX

TIRE PRESSURE MONITOR SYSTEM (TPMS)

Note. To determine the appropriate reset procedure, refer to TPMS RESET INDEX . Only vehicles listed in this index have a TPMS reset.

TPMS RESET INDEX

Initializing Tire Pressure Monitor System

Note. When initializing the system, the present tire condition is stored as a standard.

Note. Perform the tire pressure adjustment after the vehicle has sufficiently cooled down. If it hasn't sufficiently cooled, increase the air pressure in the tires approximately 3-4psi (20-30kPa)

Note. The initialization mode can be terminated by making a short circuit between terminals No. 4 and 13 of the DLC3 connector (located under left side of instrument panel).

During initialization, the tire pressure monitor valve sub-assembly measures the inflation pressure of the tires, and registers the signals that are transmitted into the tire pressure monitor ECU at a frequency of one per minute. The initialization process is completed when the signals from the 4 tires have been received.

The initialization process is canceled if the ignition switch is turned to OFF position prior to the completion of initialization. To restart initialization, the tire pressure warning reset switch must be pressed again.

Scheme 9

1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. With the vehicle parked in a safe place, connect the intelligent tester to the DLC3 and turn ignition switch to the ON position.
3. Turn the intelligent tester ON and navigate to the "TIREPRESS" option using the on-screen prompts.
4. Within 30 seconds of turning the ignition ON, press and hold the tire pressure warning reset switch (located at left side of glove compartment opening) until the tire pressure warning light blinks 3 times at one-second intervals. (Scheme 9)
5. Wait 2 - 3 minutes, with the ignition ON, for the initialization process to complete. If the initialization has not been completed successfully, Diagnostic Trouble Code (DTC) C2177/77 is set in the tire pressure monitor ECU about 20 minutes after driving starts.
6. Confirm that initialization is complete by verifying that the correct tire pressure values are displayed on the intelligent tester. NOTE: In winter, tire pressure may decrease due to low ambient temperatures - about 1.45 psi (10 kPa) for every 18°F (10°C) drop in ambient temperature. Therefore, the tire pressure warning is more likely to operate if the tire pressures are not adjusted appropriately. If the daily temperature variation is large, pressurize the tires so that they are in the specified range under cold conditions. With this adjustment, unnecessary warnings are less likely.

Tire Pressure Sensor Registration

Note. When a tire, wheel, tire pressure monitor valve sub-assembly and/or tire pressure monitor ECU are replaced, the transmitter ID needs to be registered in the tire pressure monitor ECU. To perform this procedure, a Toyota hand-held tester must be used.

Register Transmitter ID

1. Set the pressure of all tires (including spare tire) to the pressure specified on the tire and loading information label.
2. Connect the hand-held tester to DLC3. (Scheme 10)
3. Turn the ignition switch to the ON position.
4. Select REGISTER from the UTILITY menu. (Scheme 11)
5. Enter the transmitter ID(s) using the hand-held tester and transmit it to the tire pressure monitor ECU.
6. Set ID transmission condition to "ID Registration is complete".

Note. If steps 4 - 6 are not completed within 5 minutes, the mode will return to the normal operation mode.

Scheme 10

Scheme 11

Confirmation Of Transmitter ID Registration

1. Set the pressure of all tires (including spare tire) to the pressure specified on the tire and loading information label.
2. Connect the hand-held tester to DLC3.
3. Turn ignition switch to ON position.
4. Select the "TIRE PRESS" by following the prompts on the hand-held tester.
5. Confirm accurately registered tire pressures for all tires. If all values are displayed correctly, registration was completed successfully. NOTE: It may take 2-3 minutes to update the tire pressure data. If ID registration has not occurred, DTC 2171/71 will be recorded in the ECU after 51 minutes or more.

Note. The initialization mode can be terminated by making a short circuit between terminals No. 4 and 13 of the DLC3 connector (located under left side of instrument panel).

Note. When initializing the system, the present tire condition is stored as a standard.

During initialization, the tire pressure monitor valve sub-assembly measures the inflation pressure of the tires, and registers the signals that are transmitted into the tire pressure monitor ECU at a frequency of one per minute. The initialization process is completed when the signals from the 4 tires have been received.

The initialization process is canceled if the ignition switch is turned to OFF position during initialization. To initialize again, the tire pressure warning reset switch must be pressed again. For this reason, once the tire pressure warning reset switch has been pressed, turning ignition switch to OFF position is not recommended for a minimum of 20 minutes.

1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. With the vehicle parked in a safe place and hybrid system turned off, turn the POWER switch to the IG-ON position.
3. Press and hold the tire pressure warning reset switch (located under steering wheel) until the tire pressure warning light blinks 3 times at one-second intervals.
4. After 2-3 minutes, the initialization process should be completed. If the initialization has not been completed successfully, Diagnostic Trouble Code (DTC) C2177/77 is set in the tire pressure monitor ECU about 20 minutes after driving starts.
5. Confirm that initialization is complete using the intelligent tester. This may be done by checking for the test DTCS (C2181/81 to C2191/91) to be indicated, or by ensuring that tire pressure values can be displayed on the tester (it can take 2-3 minutes to display tire pressure data). NOTE: If outside temperatures are very low, tire pressures may be lower than expected. Leave ignition on for about 20 minute after confirmation that initialization has been completed, and increase the tire inflation pressure by 3-4 psi (20-30 kPa).

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 prior to system initialization. To perform this 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. see scheme 12

Scheme 12

1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Connect the intelligent tester (with CAN VIM) to DLC3. (Scheme 12)
3. Turn the ignition switch to ON position.
4. Read and record the transmitter IDs (ID1 to ID4) by using the DATA LIST. see scheme 12and see scheme 13.
5. Select the "REGIST TIRE" mode.
6. Select the "MAIN" registration mode.
7. Input the transmitter IDs (ID1 to ID4) using the intelligent tester and transmit it to the tire pressure monitor ECU.
8. Set ID transmission condition to "SUCCEEDED". 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.
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 4 tires on the intelligent tester. 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.

Tire Pressure Monitor Warning Light

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.

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

1. The areas, facilities or devices that use similar radio wave frequencies are located in the vicinity of the vehicle.
2. A radio device of similar frequency is used near the vehicle.
3. A lot of snow or ice is stuck to the vehicle, especially around the wheels or wheel housings.
4. Tires and wheels are installed that are not equipped with a tire pressure sensor.
5. Snow tires or tire chains are used.
6. The battery of the sensor has been depleted.
7. 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.
8. 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.
9. Depending on the tire type, the system may not function properly even though the specified wheels are used.
10. Using a different type of tire in combination with genuine tires.
11. If system was initialized with tire pressures which are not the specified values.

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 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.

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. (Scheme 12)
3. Turn the ignition switch to ON position.
4. Read and record the transmitter IDs (ID1 to ID5) by using the DATA LIST. (Scheme 13)and (Scheme 14).
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". 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.
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. 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.

Note. When initializing the system, the present tire condition is stored as a standard.

Note. Perform the tire pressure adjustment after the vehicle has sufficiently cooled down. If it hasn't sufficiently cooled, increase the air pressure in the tires approximately 3-4psi (20-30kPa)

Note. The initialization mode can be terminated by making a short circuit between terminals No. 4 and 13 of the DLC3 connector (located under left side of instrument panel).

During initialization, the tire pressure monitor valve sub-assembly measures the inflation pressure of the tires, and registers the signals that are transmitted into the tire pressure monitor ECU at a frequency of one per minute. The initialization process is completed when the signals from the 4 tires have been received.

The initialization process is canceled if the ignition switch is turned to OFF position prior to the completion of initialization. To restart initialization, the tire pressure warning reset switch must be pressed again.

1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. With the vehicle parked in a safe place, connect the intelligent tester to the DLC3 and turn POWER switch to the ON position.
3. Turn the intelligent tester ON and navigate to the "TIREPRESS" option using the on-screen prompts.
4. Within 30 seconds of turning the ignition ON, press and hold the tire pressure warning reset switch (located to the left of the steering wheel) until the tire pressure warning light blinks 3 times at one-second intervals.
5. Wait 5 - 6 minutes, with the ignition ON, for the initialization process to complete. If the initialization has not been completed successfully, Diagnostic Trouble Code (DTC) C2177/77 is set in the tire pressure monitor ECU about 20 minutes after driving starts.
6. Confirm that initialization is complete by verifying that the correct tire pressure values are displayed on the intelligent tester. NOTE: In winter, tire pressure may decrease due to low ambient temperatures (about 1.45 psi (10 kPa) for every 18°F (10°C) drop in ambient temperature). Therefore, the tire pressure warning is more likely to operate if the tire pressures are not adjusted appropriately. If the daily temperature variation is large, pressurize the tires so that they are in the specified range under cold conditions. With this adjustment, unnecessary warnings are less likely.

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 prior to system initialization. To perform this procedure, a Toyota intelligent tester (with CAN VIM) must be used. It is not necessary to register the sensor ID(s) when only tire rotation is performed.

Note. Before beginning registration process on vehicles where tire pressure sensors have not been replaced, retrieve sensor transmitter ID(s) 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 8-digit number (transmitter ID) before installation, as it cannot be seen after sensor is installed.

1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Connect the intelligent tester (with CAN VIM) to DLC3. (Scheme 12)
3. Turn the ignition switch to ON position.
4. Select the "REGIST TIRE" mode (UTILITY - REGIST TIRE).
5. Input the transmitter ID(s) (ID1 to ID4), using the intelligent tester, and transmit them to the tire pressure warning ECU. see scheme 17and see scheme 18.
6. Set the ID transmission condition to "ID REGISTRATION COMPLETE". NOTE: Any previously registered ID(s) will be deleted from the memory when the registration is completed. NOTE: If steps 4 - 6 are not completed within 5 minutes, the mode will return to the normal operation mode.
7. Turn ignition switch to OFF position.
8. Turn ignition switch to ON position. Select the "TIRE PRESS" mode on the intelligent tester.
9. Confirm that the tire pressure data is displayed for all 4 tires on the intelligent tester. This will confirm that the registration has been completed successfully. NOTE: It may take 5 - 6 minutes to update the tire pressure data. NOTE: If the ID(s) have not been registered, DTC C2171/71 is set in the tire pressure monitor ECU after about 3 minutes.

Note. The initialization mode can be terminated by making a short circuit between terminals No. 4 and 13 of the DLC3 connector (located under left side of instrument panel).

Note. When initializing the system, the present tire condition is stored as a standard.

During initialization, the tire pressure monitor valve sub-assembly measures the inflation pressure of the tires, and registers the signals that are transmitted into the tire pressure monitor ECU at a frequency of one per minute. The initialization process is completed when the signals from the 5 tires have been received.

The initialization process is canceled if the ignition switch is turned to OFF position during initialization. To initialize again, the tire pressure warning reset switch must be pressed again. For this reason, once the tire pressure warning reset switch has been pressed, turning ignition switch to OFF position is not recommended for a minimum of 20 minutes.

1. Set the tire pressure of all wheels (including spare tire) to pressure specified on the tire and loading information label.
2. With the vehicle stopped and parking brake applied, turn the ignition switch to the ON position.
3. Press and hold the tire pressure warning reset switch (located under steering wheel) until the tire pressure warning light blinks 3 times at one-second intervals.
4. After 2-3 minutes, the initialization process should be completed. If the initialization has not been completed successfully, Diagnostic Trouble Code (DTC) C2177/77 is set in the tire pressure monitor ECU about 20 minutes after driving starts.
5. Confirm that initialization is complete using the intelligent tester. This may be done by checking for the test DTCS (C2181/81 to C2191/91) to be indicated, or by ensuring that tire pressure values can be displayed on the tester (it can take 2-3 minutes to display tire pressure data). NOTE: If outside temperatures are very low (such as in winter), which can cause decreases in tire pressure, leave ignition on for about 20 minutes after confirmation that initialization has been completed, and increase the tire inflation pressure by 3-4 psi (20-30 kPa).

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 prior to system initialization. To perform this procedure, a Toyota intelligent tester must be used. It is not necessary to register the sensor IDs when only tire rotation is performed.

Note. If transmitter IDs cannot be registered, the tire pressure monitor ECU is probably in initialization mode. Initialization mode can be terminated by making a short circuit between terminals No. 4 and 13 of the DLC3 connector (located under left side of instrument panel).

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. When system is in initialization mode after the reset switch has been operated, the registration is disabled until the initialization process is canceled or completed.

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 to DLC3. see scheme 19
3. Turn the ignition switch to the ON position.
4. Read and record the transmitter IDs (ID1 to ID5) by using the DATA LIST. (Scheme 13)
5. Input the transmitter IDs (ID1 to ID5) using the intelligent tester and transmit it to the tire pressure monitor ECU. (Scheme 14)
6. Select the "REGIST TIRE" mode.
7. Select the "MAIN" registration mode.
8. Set ID transmission condition to "COMPLETE". 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.
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. 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 30 minutes.

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.

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 after 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 is still 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

1. The areas, facilities or devices that use similar radio wave frequencies are located in the vicinity of the vehicle.
2. A radio device of similar frequency is used in or near the vehicle.
3. A lot of snow or ice is stuck to the vehicle, especially the wheels and around the wheel houses.
4. The battery of the sensor has been depleted.
5. A tire without tire pressure monitor valve sub-assembly is used.
6. Tire chains are used.
7. 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.
8. Depending on the tire type, the system may not function properly even though the specified wheels are used.

Note. The system will need to be initialized when tires are rotated; tires are replaced with tires of different pressures; tire pressure sensor and/or tire pressure monitor ECU are replaced; or when a new vehicle is delivered. Set tire pressure within the specified range before initializing.

Note. When initializing the system, the present tire condition is stored as a standard.

During initialization, the tire pressure monitor valve sub-assembly measures the inflation pressure of the tires, and registers the signals that are transmitted into the tire pressure monitor ECU at a frequency of one per 3 minutes. The initialization process is completed when the signals from the 5 tires have been received.

1. Set the tire pressure of all wheels (including spare tire) to pressure specified on the tire and loading information label.
2. With the vehicle stopped and parking brake applied, turn the ignition switch to the ON position.
3. Press and hold the tire pressure warning reset switch until the tire pressure warning lamp blinks 3 times at one-second intervals.
4. Confirm that initialization is complete using the hand-held tester. First select "DATA LIST" on the hand-held tester, then verify that the "TIREPRESS" values are displayed. It may take 5 to 6 minutes for the "TIREPRESS" values to display on the hand-held tester screen NOTE: The initialization process takes 5 to 6 minutes to be completed. The initialization process can be terminated by connecting terminals 4 (TC) and 13 (CG) of the DLC3.

Note. If the tire pressure sensor and/or tire pressure monitor ECU are replaced, the transmitter ID needs to be registered in the tire pressure monitor ECU prior to system initialization. To perform this procedure, the Toyota hand-held tester must be used.

Register Transmitter ID

1. Set the tire pressure of all wheels (including spare tire) to pressure specified on the tire and loading information label.
2. Connect the hand-held tester to DLC3.
3. Turn ignition switch to ON position.
4. Select the "REGIST TIRE" mode. (Scheme 13)and see scheme 20.
5. Input the transmitter IDs (ID1 to ID5) using the hand-held tester and transmit it to the tire pressure monitor ECU.
6. Set the ID transmission condition to "SUCCEEDED".

Note. If steps 4 - 6 are not completed within 5 minutes, the mode will return to the normal operation mode.

Confirmation Of Transmitter ID Registration

1. Set the tire pressure of all wheels (including spare tire) to the specified value.
2. Connect the hand-held tester to DLC3.
3. Turn ignition switch to ON position.
4. Select "DATA LIST" mode on the hand-held tester.
5. Confirm the "TIREPRESS" values are displayed on the hand-held tester screen.

Scheme 13

When the tire pressure warning light does not go off, or when it comes on during driving, check tire pressure 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. If the warning light is still on or blinks, there is a malfunction in the TPM system. See appropriate manufacturer service information.

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

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 procedure, a Toyota Techstream must be used. It is not necessary to register the sensor ID(s) when only tire rotation is performed.

Note. Before beginning registration process on vehicles where tire pressure sensors have not been replaced, retrieve sensor transmitter ID(s) 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 transmitter ID before installation, as it cannot be seen after sensor is installed. see scheme 21

Scheme 14

1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Connect the intelligent tester to DLC3. (Scheme 12)
3. Turn the Tachstream scan tool on and the ignition switch to ON position.
4. Enter the following menus: Chassis / Tire Pressure Monitor / Utility / ID Registration.
5. Perform the procedure displayed on the scan tool. NOTE: Tire pressure sensor IDs that were previously registered will be deleted from the memory when registration is completed.
6. Confirm the tire pressure sensor's IDs are registered
7. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
8. Confirm the tire pressure values are displayed for all 4 tires. NOTE: It may take up to 2 or 3 minutes to update the tire pressure data. If tire pressure values do not display after 2 or 3 minutes, troubleshoot DTCs C2121/21 to C2124/24 (on some models, up to C2125/25). NOTE: If the ID(s) have not been registered, DTC C2171/71 is set in the tire pressure monitor ECU after 3 minutes or more.

Registration

Note. The transmitter ID is written on the tire pressure warning valve and transmitter. It will be unable to be read after installing the tire pressure warning valve and transmitter on the tire and wheel. Therefore, take a note of the transmitter ID before installing the tire pressure warning valve and transmitter.

1. Set the air pressure of all wheels to the specified value
2. Turn the ignition switch off.
3. Connect Techstream to the DLC3.
4. Turn the ignition switch on (IG) and the Techstream on.
5. Enter the menu items in this order: Chassis / Tire Pressure Monitor / Utility / ID Registration
6. Perform the transmitter ID registration.
7. Input the transmitter IDs (ID1 to ID5) using the Techstream and transmit them to the tire pressure warning ECU.
8. The "ID Registration is complete" is displayed on the Techstream display.
9. Confirm transmitter ID registration. Enter the menu items in this order: Chassis / Tire Pressure Monitor / Data List Read the "ID Tire Inflation Pressure" values. Confirm that the data of tire pressure of all tires are displayed on the screen.

Note. It may take up to about 2 or 3 minutes to update the tire pressure data. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24 (on models with full-sized spare, up to C2125/25). If the IDs have not been registered, DTC C2171/71 is set in the tire pressure warning ECU after 3 minutes or more. If normal pressure values are displayed, the IDs have been registered correctly. If the tire pressure values are not displayed after a few minutes, the IDs may be incorrect or the system may have a malfunction. After all IDs are registered, DTC C2126/26 (Transmitter ID not Received in Main Mode) is set in the tire pressure warning ECU and the tire pressure warning light blinks for 1 minute and then comes on. When the tire pressure warning ECU successfully receives radio waves from all the transmitters whose IDs are stored in the ECU, DTC C2126/26 is deleted and the tire pressure warning light goes off.

Initialization

Note. Initialization is NOT required if re-inflating tires to the currently specified tire pressure.

The purpose of Initialization is to tell the TPMS ECU what the inflation pressures should be for the current set of tires. Perform Initialization if the specification changes.

Also perform initialization in the following cases

1. After replacement of the tire pressure warning ECU. Perform initialization after the transmitter ID registration is completed.
2. After replacement of the tire pressure warning valve and transmitter. Perform initialization after the transmitter ID registration is completed.
3. After rotating the tires on vehicles whose front and rear tire inflation pressure standard values are different.

1. Turn the ignition switch to ON.
2. Press and hold the tire pressure warning reset switch for 3 seconds or more so that the tire pressure warning light blinks 3 times.
3. Turn the ignition switch to OFF.
4. Connect Techstream to the DLC3.
5. Turn the ignition switch to ON and turn the tester on.
6. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
7. Check that the initialization has been completed.
8. Confirm that the tire pressure data of all tires are displayed on the tester screen.

Note. The initialization is normally completed within 2 to 3 minutes. If the initialization has not been completed successfully, DTC C2177/77 is set after a vehicle speed of 8 km/h (5 mph) or more continues for 20 minutes or more. The initialization can be terminated by connecting terminals 13 (TC) and 4 (CG) of the DLC3 connector.