Pacifica V6-3.8L VIN L (2005)
Tire Pressure Sensor: Description and Operation
DESCRIPTION
On vehicles equipped with Tire Pressure Monitoring (TPM), one tire pressure sensor is mounted to each wheel in place of the traditional tire valve
stem (Fig. 13). 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.
The TPM system operates on a 315 MHz radio frequency (Fig. 13).
The TPM sensors are designed for original style factory wheels. Do not attempt to install a tire pressure sensor in an aftermarket wheel.
The serviceable components of the tire pressure sensor are (Fig. 14):
-
Sensor-To-Wheel Seal and Metal Washer
-
Valve Stem Cap
-
Valve Stem Core
-
Valve Stem Nut
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