Chrysler 2005 Crossfire SRT6 Service Manual page 3533

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OPERATION
The Universal Garage Door Opener/Tire Pressure
Monitor (TPM) module (1) has a microprocessor con-
troller that can monitor the transmissions from the
sensor/transmitters anytime the ignition is on. It can
store the last 32 transmissions. There are two impor-
tant values included in these transmissions. They are:
• Why The Transmission Was Sent
• Tire Pressure Value
The module compares the transmitted tire pressure
from the sensor to the two pressure thresholds (low
pressure or critical pressure).
If the module determines that the tire pressure trans-
mitted is below the low or critical pressure thresholds,
it will signal for the "Low Tire" pressure warning lamp
to come on.
The TPM module performs diagnostic routines, stores
diagnostic trouble codes and provides the appropriate
lamp status to the body control module (BCM).
When the module determines there is a fault, the low
tire pressure indicator lamp circuit is grounded and the
BCM turns on the "Low Tire" pressure indicator lamp.
The TPM module (1) also stores its own identification
number, each of the four sensor/transmitter identifica-
tion numbers, module version and the date of
manufacture.
CAUTION
CAUTION: The use of tire sealants is strictly prohibited for vehicles equipped with the Tire Pressure Mon-
itoring system. Tire sealants can clog tire pressure sensors.
CAUTION: Tire pressure sensor valve stem caps and cores are specially designed for the sensors. Due to
risk of corrosion, do not use a standard valve stem cap or core in a tire pressure sensor in place of the
original equipment style sensor cap and core.
CAUTION: Do not attempt to install a tire pressure sensor in a steel wheel or aftermarket wheel. Use tire
pressure sensors in original style factory wheels only.
TIRES/WHEELS - SERVICE INFORMATION 22 - 47