Description

DESCRIPTION

On vehicles equipped with Tire Pressure Monitoring (TPM), one tire pressure sensor (6) is mounted to each wheel (5) in place of the traditional tire valve stem (Figure 1). Each sensor has an internal battery that lasts up to 10 years. The battery is not serviceable. At the time of battery failure, the sensor must be replaced.





Figure 1 Sensor Mounting - Exploded View







The TPM system operates on a 315 MHz radio frequency. Corporate 315 MHz sensors can be easily identified by a white outline oval (black center) insignia (3) on the sensor body.(Figure 2).





Figure 2 Tire Pressure Sensor







The TPM sensors are designed for original style factory wheels. Do not attempt to install a tire pressure sensor in an aftermarket wheel. If aftermarket wheels are installed and do not contain tire pressure sensors, the system will not function properly and the driver will be continuously notified of a system malfunction.


The serviceable components of the tire pressure sensor are (Figure 1):

- Sensor-To-Wheel Seal and Metal Washer
- Valve Stem Cap
- Valve Stem Core
- Valve Stem Nut (with pressed-in washer)

The valve stem caps and cores used are specifically designed for the tire pressure monitoring sensors. Although similar to standard valve stem caps and cores, they are different. The valve stem cap has a special seal inside to keep moisture and corrosion out. The valve stem core has a special nickel coating to protect from corrosion.