Tire & Wheel: Removal & Installation Lexus IS II

REMOVAL

1. REMOVE FRONT WHEEL
2. REMOVE REAR WHEEL
3. REMOVE TIRE PRESSURE WARNING VALVE AND TRANSMITTER Remove the valve core and cap, and release the air from the tire. After ensuring that a sufficient amount of air has been released, remove the nut and washer that is used to secure the tire pressure warning valve and transmitter and drop the sensor inside the tire. HINT: Keep the removed cap, valve core, nut and washer. After dropping the tire pressure warning valve and transmitter into the tire, disengage the bead using the shoe of the tire remover. NOTE: Be careful not to damage the tire pressure warning valve and transmitter due to interference between the sensor and tire bead. Remove the bead on the upper side in the usual way. Take out the sensor from the tire and remove the bead on the lower side in the usual way. Remove the inner grommet from the tire pressure warning valve and transmitter. HINT: Check that no cracks or damage are identified on the grommet. If necessary, replace the grommet, the washer and the nut.

Scheme 29

Scheme 30

1. INSTALL TIRE PRESSURE WARNING VALVE AND TRANSMITTER Insert the tire pressure warning valve and transmitter into the valve installation hole. Insert it from the inside of the rim so that the print surface can be seen. NOTE: Check that there is no visible deformation, damage or other abnormalities on the transmitter. Check that there is no foreign matter on the inner grommet and around the rim hole. If the valve is installed in the reverse direction, the tire pressure warning valve and transmitter may be damaged or fail to transmit signals when running at high speeds. Install the washer on the tire pressure warning valve and transmitter from the rim side and tighten the nut. Torque: 4.0 N*m (41 kgf*cm, 35 in.*lbf) NOTE: Check that there is no foreign matter on the washer and nut. If the tire and tire pressure warning valve and transmitter have been removed, check that there is no damage or cuts visible, and no foreign matter, such as mud, dirt or sand attached to the grommet. Replace the grommet with a new one if any of the defects mentioned above are found. Check that there is no oil, water or lubricant around the rim hole, tire pressure warning valve and transmitter, washer and nut. Failing to do so may result in improper installation. After the tire is inflated, the valve nut may be loose. Retighten the nut to the specified torque and then check for air leaks with soapy water. Torque: 4.0 N*m (41 kgf*cm, 35 in.*lbf) Set the wheel disc to the mounting machine and install the lower tire bead. Position the main body of the sensor in the shaded area as shown in the illustration. NOTE: If the sensor is positioned outside this area, the sensor will be interfered with the tire bead, and may cause damage to the sensor. Install the upper bead. NOTE: Make sure that the tire bead and tool do not interfere with the main body of the sensor and that the sensor is not clamped by the bead.
2. INSTALL FRONT WHEEL Torque: 103 N*m (1,050 kgf*cm, 76 ft.*lbf)
3. INSTALL REAR WHEEL Torque: 103 N*m (1,050 kgf*cm, 76 ft.*lbf)
4. INSPECT TIRE
5. REGISTER TRANSMITTER ID HINT: (See «REGISTRATION»(ref-235571-S01517126292006062400000) )
6. INSPECT TIRE PRESSURE WARNING SYSTEM HINT: (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-235571-S02578917792006062400000) )

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Scheme 32

1. REMOVE RADIO RECEIVER ASSEMBLY HINT: Refer to the instructions for removal of the radio receiver assembly (See «REMOVAL»(ref-235589-S20177326342006062400000) ).
2. REMOVE TIRE PRESSURE WARNING ECU AND RECEIVER Disconnect the connector. Remove the bolt and the tire pressure warning ECU and receiver.

Scheme 33

INSTALLATION

1. INSTALL TIRE PRESSURE WARNING ECU AND RECEIVER Install the tire pressure warning ECU and receiver with the bolt. Torque: 4.5 N*m (46 kgf*cm, 40 in.*lbf) Connect the connector.
2. INSTALL RADIO RECEIVER ASSEMBLY HINT: Refer to the instructions for installation of the radio receiver assembly (See «INSTALLATION»(ref-235589-S18433754322006062400000) ).
3. REGISTER OF TRANSMITTER ID SST 09843-18040 HINT: (See «REGISTRATION»(ref-235571-S01517126292006062400000) )
4. INSPECT TIRE PRESSURE WARNING SYSTEM HINT: (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-235571-S02578917792006062400000) )

Scheme 34