Liberty Sport 4WD L4-2.4L VIN 1 (2002)
Pressing the C/T button selects the Compass/Temperature display.
3. US/M (ENGLISH/METRIC MEASUREMENT) BUTTON
Pressing the USIM button switches the display units between English and Metric readings.
4. Reset Button
Pressing the RESET button resets the function on the display, provided that function can be reset. The functions which can be reset are
Average fuel economy, Trip odometer and Elapsed time.
Global Reset This feature allows all three displays (Average fuel economy, Trip odometer and Elapsed time) to be reset easily, by pressing
the RESET button twice within three seconds with any of the screens in display. This eliminates the need to reset each display individually
The RESET button is also used to set the variance and/or calibrate the compass. Refer to the Variance Procedure and Calibration Procedure in
this section.
For more information on the features, control functions and setting procedures for the CMTC module, see the owner's manual in the vehicle
glove box.
Compass
While in the compass/thermometer mode, the compass will display the direction in which the vehicle is pointed using the eight major compass
headings (Examples: north is N, northeast is NE). The self-calibrating compass unit requires no adjusting in normal use. The only calibration that
may prove necessary is to drive the vehicle in three complete circles at 5 to 8 kilometers-per-hour (3 to 5 miles-perhour), on level ground, in
not less than forty-eight seconds. This will reorient the compass unit to its vehicle.
The compass unit also will compensate for magnetism the body of the vehicle may acquire during normal use. However, avoid placing anything
magnetic directly on the roof of the vehicle. Magnetic mounts for an antenna, a repair order hat, or a funeral procession flag can exceed the
compensating ability of the compass unit if placed on the roof panel. Magnetic bit drivers used on the fasteners that hold the overhead console
assembly to the roof header can also affect compass operation. If the vehicle roof should become magnetized, the demagnetizing and calibration
procedures found in this group may be required to restore proper compass operation.
Thermometer
The thermometer displays the outside ambient temperature in whole degrees. The temperature display can be toggled from Fahrenheit to Celsius
by using the U.S./Metric button. The displayed temperature is not an instant reading of conditions, but an average temperature. It may take the
thermometer display several minutes to respond to a major temperature change, such as driving out of a heated garage into winter temperatures.
When the ignition switch is turned to the OFF position, the last displayed temperature reading stays in the Body Control Module (BCM) unit
memory. When the ignition switch is turned to the ON position again, the CMTC will display the memory temperature for one minute; then
update the display to the current average temperature reading within five minutes.
The thermometer function is supported by an ambient temperature sensor. The sensor is mounted outside the passenger compartment near the front
and center of the vehicle, and is hard wired to the Body Control Module (BCM). The BCM sends temperature status messages to the CMTC
module over the PCI data bus network. The ambient temperature sensor is available as a separate service item, refer to additional information later
in this section.
Fig.7 Overhead Console With Universal Transmitter
