REMOVAL AND INSTALLATION
| CAUTION | To remove the driver airbag module, refer to SERVICE PRECAUTIONS and AIR BAG MODULE(S) AND CLOCK SPRING . When WCM has been replaced, all key ID codes should be registered, referring to the ID CODE REGISTRATION NECESSITY JUDGMENT TABLE . |
A << WCM INSTALLATION
Check that the top claw of WCM is fixed securely to the boss of steering lock and the antenna is not floated on the key cylinder.
<< A UPPER COVER REMOVAL
| CAUTION | To prevent damage to the transmitter, wrap a flat-tipped screwdriver with protective tape before prying. |
Insert a flat-tipped screwdriver in the area shown, and remove the upper cover by prying it with the screwdriver.
Scheme 9
<< B BATTERY REMOVAL
| CAUTION | Do not allow water or dust to enter the inside of the transmitter assembly when it is open. Also, do not touch the precision electronic device. To prevent damage to the transmitter assembly, wrap a flat-tipped screwdriver with protective tape before prying. |
Insert a flat-tipped screwdriver in the area shown, and remove the battery by prying it with the screwdriver.
Scheme 10
A << BATTERY INSTALLATION
| CAUTION | Do not allow water or dust to enter the inside of the transmitter assembly when it is open. Also, do not touch the precision electronic device. |
Install a new battery to the transmitter assembly with its (+) side facing towards the master key side.
Battery required for replacement: Coin type battery CR1620
Scheme 11
| CAUTION | Ensure valve cap is always in place except when adjusting tire pressure. If the valve core and valve cap are replaced, use a genuine replacement part. The valve core is similar to a conventional one, but uses nickel plating to avoid corrosion. Replace the valve stem grommet and washer with a new one every five years or when the tire is replaced. Do not drop the TPMS transmitter from height greater than 1 meter (3.3 feet). Do not expose the TPMS transmitter to extraneous magnetic fields. TPMS transmitter should not be stored at temperatures above 80°C (176°F). TPMS transmitter should not be exposed to temperatures above 100°C (212°F). If the TPMS transmitter is replaced, execute "Tire Pressure Sensor ID Registration" on scan tool MB99158 "Special Function." |
<< A VALVE CAP/VALVE NUT REMOVAL
| CAUTION | Ensure valve cap is always in place except when adjusting tire pressure. |
- Remove the valve cap.
- Rotate tire so that valve stem is in the 6 o'clock position.
- Use a long-reach 17.2 mm (0.68 inch) socket to unscrew the valve nut and remove it. Slowly push valve stem into tire so that tire pressure is relieved.
- Once tire pressure is relieved, let TPMS transmitter into tire.
Scheme 12
Scheme 12: << B TPMS TRANSMITTER REMOVAL
- Place on tire changing machine and break both tire beads ensuring that the transmitter remains in the bottom of the tire. CAUTION: Be careful not to damage the TPMS transmitter.
- Lubricate tire well and remove outer side of the tire.
- Reach inside the tire and remove the TPMS transmitter.
- Remove tire from rim using proper tire changing equipment procedures.
<< C GROMMET/WASHER REMOVAL
| CAUTION | Do not vary the angle of valve except at mounting on the rim. If varying the angle over and over, it may cause breakage of antenna plate resulting in the failure of transmitter. Use a soft tool to remove the grommet and washer to prevent scratching the valve of the TPMS transmitter. |
Remove the grommet and washer from the TPMS transmitter.
A << GROMMET/WASHER/TPMS TRANSMITTER/VALVE NUT INSTALLATION
| CAUTION | When installing a new grommet and washer, make sure to support the valve stem base with a thumb so that there is no movement of the stem. Otherwise, the stem may protrude resulting in the breakage of antenna plate. |
Scheme 13
- Install a new grommet and washer to the TPMS transmitter. CAUTION: Visually check that TPMS transmitter is not deformed or damaged. When installing the TPMS transmitter, be sure the rim, grommet and valve nut are clean. Ensure the grommet is located inside the valve hole before installing the valve nut. While installing the valve nut, push the transmitter to maintain the lower lip of the transmitter case is in contact with the rim without clearance. While installing the valve nut, ensure the tool is kept aligned to the valve and the valve hole. After installing the valve nut, check that the grommet is compressed and washer is bend.
- Mount TPMS transmitter valve through rim hole as illustrated. Pressure holes in the transmitter case should face away from center of rim. Tighten valve nut finger tight, then slowly torque the valve nut to 8.0 ± 0.5 N.m (71 ± 4 in-lb). CAUTION: Install the TPMS transmitter correctly. If the TPMS transmitter is installed incorrectly, it may not work correctly, or become damaged when the tire is installed.
- Check that the TPMS transmitter is correctly assembled (Refer to illustration ). Lower lip of the TPMS transmitter case is touching the rim after torquing.
Scheme 14
Scheme 14: B << TIRE BEAD MOUNTING
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Scheme 17
Scheme 18
- Put the tire on the rim, so that the cross point of the belt with the rim is approximately 20 cm (7.9 inch) away from the valve
- Engage the shoe and make sure that 20 cm (7.9 inch) is maintained between the cross point and the valve. The arrow shows the direction of rotation of the wheel.
- Turn the wheel in order to engage all the first side of the tire. NOTE: The standard shoes can pass over the sensor without damaging it.
- Put the second side of the tire in position, so that the cross point of the belt with the rim is approximately 20 cm (7.9 inch) away from the valve. the curved arrow shows the direction of rotation of the wheel.
- Turn the wheel in order to engage all of the second side of the tire. NOTE: The standard shoes can pass over the sensor without damaging it.
