Tire Pressure Sensor: Service and Repair
Tire and/or Tire Pressure Sensor (If Equipped) Mounting and DismountingWARNING:
^ Do not stand over a tire being inflated. Tire bead may break when the bead snaps over rim's safety hump and cause serious personal injury.
^ Do not inflate tires exceeding 330 kPa (48 psi). If tire bead does not seat even when a 330 kPa (48 psi) pressure is reached, deflate the tire, re-lubricate the bead and reinflate the tire. Over-inflation may cause the bead to break, which may cause serious personal injury.
CAUTION:
^ When replacing a tire of TPMS equipped vehicle, be sure to drop the tire pressure sensor inside the tire before detaching the tire bead from the wheel. Removing the tire from wheel without dropping the tire pressure sensor inside the tire may cause damage to the tire pressure sensor.
^ When replacing a tire of TPMS equipped vehicle, check to make sure that tire size is as specified in the "Tire Placard". If size of installed tire is out of specification, tire pressure sensor may be broken because of interference with tire bead.
^ Do not try to change tires using hand tools or tire irons alone, as doing so may damage tire beads or wheel rim.
^ Rim bead seats should be cleaned with wire brush or coarse steel wool to remove lubricants, old rubber and light rust. Before mounting or dismounting tire, bead area should be well lubricated with approved tire lubricant.
^ After mounting tire, inflate it to 300 kPa (44 psi) so that beads are completely seated. Then adjust pressure to specification indicated on tire placard.
^ Valve caps should always be installed on valves to keep dust and water out.
^ Carefully handle tire pressure sensor not to apply impact when installing it. Tire pressure sensor exposed to an impact may not function properly.
^ When reusing tire pressure sensor (1), be sure to replace valve cap (2), valve core (3), tire pressure sensor mounting nut (4), seal (5) and valve stem (6) with new ones. Otherwise air leakage will occur.
NOTE:
After replacing tire pressure sensor of TPMS equipped vehicle, be sure to register ID code of tire pressure sensor into keyless start control module. If it is not registered, low tire pressure warning light will flash even if tire inflation pressure is adjusted to the specified value.
1) Hoist vehicle and remove wheel.
2) Release air from tire by removing valve core (1).
3) Dismount tire and tire pressure sensor (if equipped) from wheel as follows.
For wheel with tire pressure sensor:
1. Drop tire pressure sensor (2) into the tire by removing tire pressure sensor mounting nut (3) from wheel.
2. Dismount tire using tire changing machine. Follow equipment manufacturer's instructions.
3. Take tire pressure sensor out of tire.
For wheel without tire pressure sensor:
Dismount tire using tire changing machine. Follow equipment manufacturer's instructions.
4) Mount tire and install tire pressure sensor (if equipped) to wheel as follows.
For wheel with tire pressure sensor:
1. Check tire pressure sensor (1) for function using recommended tool (2). Follow equipment manufacturer's instructions.
2. Replace seal (1) and valve stem (2) with new ones.
3. Install tire pressure sensor (3) fitted with new valve stem (2) to wheel.
4. Tighten new tire pressure sensor mounting nut (4) to specified torque.
Tightening torque
Tire pressure sensor mounting nut (a): 8.5 Nm (0.85 kg-m, 6.5 lbf-ft)
5. Mount tire using tire changing machine. Follow equipment manufacturer's instructions.
When mounting tire to steel wheel, refer to Wheel-Tire Assembly Description (for Vehicle Equipped with Steel Wheels) for match mounting of tire on wheel.
5) Install new valve core and inflate tire to proper pressure.
6) After tire is inflated, check air valve's fitting part for air leakage with soap water.
7) Register the ID code of the tire pressure sensor into the keyless start control module, referring to Registration Procedure for Tire Pressure Sensor ID Code.
8) Drive vehicle at a speed higher than 40 km/h (25 MPH) for 2 minutes and confirm that tire and wheel are normal.