Sensor, Tire Pressure Monitoring (TPM): Description
Replace the valve stem assembly and tire pressure sensor mounting screw with each tire change.
The tire pressure sensor (1), the valve stem (3), and all valve stem components including the cap (4) and the valve core can be serviced and replaced individually.
Install a NEW valve stem (3) and valve stem core if they are removed from the wheel or valve stem.
One tire pressure sensor (1) is mounted to a valve stem (3) specifically designed for mounting the pressure sensor in each wheel in place of the traditional tire valve stem. Each sensor has an internal battery that lasts up to 10 years. The battery is not serviceable and at the time of battery failure, the sensor must be replaced. The tire pressure sensor valve stem looks similar to a standard valve stem with the tire mounted on the wheel.
This vehicle a TPM sensor the transmits at a frequency of 433 MHz. Although 315 MHz and 433 MHz sensors are identical in size and shape, they are not interchangeable. Always make sure the correct sensor is being used. A RKE-TPM Analyzer can be used to determine the sensor's frequency without having to dismount the tire.
The TPM sensors are designed for original style factory wheels. It is not recommended to install a tire pressure sensor in an aftermarket wheel. (This could cause sealing and system performance issues.)
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.
Two different types of sensor valve stem are used :
- Standard rubber snap-in valve stem (3).
- Screw in valve stem (3) and retaining nut (on aluminum outboard mounted wheels only).
The inner dually wheels contain a unique senor that is identified by "ID" (1) marked on the sensor housing. It is not compatible in other locations and must always be mounted as an inboard wheel. It has a standard rubber snap-in valve stem.