Service manual

Suspension Tire Pressure Monitoring 3-55
2006 LSSV Service Manual Supplement
Description and Operation
Tire Pressure Monitor Description
and Operation
The system is a sensing device designated to identify
and display tire operating data and activate an alert or
warning when tire pressure or temperature irregularities
are detected.
Tire Monitoring
The system consists of wheel mounted
sensor/transmitters inside each tire which measure
contained air pressure and temperature then transmit
this data to a receiver within view of the driver.
System Operation
The system operates continuously, transmitting air
pressure and temperature data.
Important: Use of Chemicals. Temporary resealing or
reinflation products containing internal sealers or
propellants in any tire/wheel assembly may adversely
affect the operation of the Sensor/Transmitters.
• At approximately 5-minute intervals when the
vehicle is moving faster than 10 kph (6 mph)
unless pressure changes, then data is
transmitted within 7 seconds.
• Every 15 minutes when the vehicle is parked
and pressure drops to 124 kPa (18 psi) or lower.
Initiator Programming
Programming
The initiator is a handheld tool that assists the service
technician during installation of the system. The initiator
is designed to interact with a high pressure sensor to
provoke a data transmission or to place the sensor in a
different state. The initiator assists the technician in
programming newly installed sensors and in verifying
the correct installation of these sensors.
Initiator Functions
Button Function
Initiate
This function is used after the sensors are installed to confirm whether the sensor
positions were properly programmed in the receiver. Pressing this button while
holding the initiator against the tire sidewall adjacent to the sensor causes the
sensor to transmit its ID, tire pressure and temperature data.
De-Energize
This function should only be used when the sensors are taken out of the tire and
need to be shipped back to the supplier. Pressing this button while holding
initiator next to the side of the sensor causes it to stop transmitting.
Learn
This function is used to provoke a Learn transmission from the sensor in order to
program the receiver. Pressing this button while holding the initiator against the
tire sidewall adjacent to the sensor causes it to transmit its Learn signal.
LED Functions
LED Function
Green Initiator is working properly.
Red
Initiator is not working properly. Contact your dealer regarding repair or
replacement.
Orange Battery is low.
Powering On the Initiator
The Initiator is powered with a 9 volt battery that is
installed by opening the battery access panel on the
back. An ON/OFF switch is located on the right side
and this should be pushed upward to turn the initiator
ON and downward to turn the initiator OFF.
Understanding Temperature
Compensated Pressure Readings
An important feature of the Full Function Display
system is that pressure deviation alerts are initiated
from a comparison of the temperature compensated
pressure to the measured tire pressure read by the
sensor.