Commander 4WD V8-4.7L VIN N (2006)
The Export TPM system operates on a 433 MHz radio frequency. The 433 MHz sensors can be easily identified by a solid white oval insignia (3) on
the body.
CAUTION: 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.
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:
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Sensor-To-Wheel Seal (2) and Metal Washer (1)
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Valve Stem Cap (4)
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Valve Stem Core
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Valve Stem Nut (with pressed-in washer) (3)
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.
OPERATION
The battery operated tire pressure sensors lay dormant (Park Mode), then wake and start transmitting (Drive Mode) when the vehicle first reaches
speeds over 20 mph (32 km/h). Once the wheels stop rotating for a period of approximately 20 minutes, the sensors shut down until again awaken.
Although not transmitting as when in Drive Mode, while in Park Mode, the sensors still transmit approximately once every 13 hours to let the receiver
know air pressure status at that time.
Using an RF signal, each sensor transmits tire pressure data approximately once every minute only in drive mode. Each sensor's (transmitter)
broadcast is uniquely coded so that the wireless control module (WCM) can monitor the state of each of the sensors on the four rotating road wheels.
The WCM automatically learns and stores the sensor's ID while driving after a sensor has been replaced.
NOTE: On vehicles equipped with a Tire Pressure Monitoring System (TPMS), when the spare tire pressure sensor is replaced with a new pressure
sensor, a diagnostic scan tool MUST be used to run a routine that will program the new pressure sensor ID into the Wireless Control Module (WCM),
commonly referred to as the Sentry Key Remote Entry Module (SKREEM). Please copy the ID number off of the new pressure sensor before
installing it into the spare tire. Then follow the programming steps outlined in the diagnostic scan tool for: "Learn Spare Tire Sensor ID" under"
Miscellaneous Functions" for the "WCM/Wireless Control Module" menu item as appropriate.
