Town & Country V6-3.8L (2009)
Odometer: Description and Operation
Odometer - Description
DESCRIPTION
An odometer and trip odometer are standard factory-installed equipment in all instrument clusters. The odometer and trip odometer are displayed in a
common electronic, blue-green Vacuum-Fluorescent Display (VFD) unit. This VFD unit is soldered onto the cluster electronic circuit board, and is
visible through a window with a smoked clear lens. On Dodge vehicles with a base instrument cluster, the odometer is located on the lower edge of the
engine coolant temperature gauge on the right side of the cluster overlay. On Dodge vehicles with a premium instrument cluster, the odometer is located
on the lower edge of the tachometer on the right side of the cluster overlay. On Chrysler vehicles, the odometer is located on the lower edge of the
tachometer, just to the right of center of the cluster overlay. The dark lens over the VFD prevents the odometer from being clearly visible when it is not
illuminated.
The odometer and trip odometer information are not displayed simultaneously. The trip odometer reset switch on the instrument cluster circuit board
toggles the display between odometer and trip odometer modes by depressing the odometer/trip odometer switch button that extends through the lower
edge of the cluster lens, just to the right of the odometer VFD. When the trip odometer information is displayed, the text TRIP A or TRIP B is also
illuminated in the lower right corner of the odometer/trip odometer VFD in a blue-green color and at the same lighting level as the trip odometer
information.
The odometer and trip odometer information are stored in the instrument cluster memory. This information can be increased when the proper inputs are
provided to the instrument cluster, but the information cannot be decreased. The odometer can display values up to 999,999 kilometers (999,999 miles).
The odometer latches at these values, and will not roll over to zero. The trip odometer can display values up to 999.9 kilometers (999.9 miles) before it
rolls over to zero.
The odometer display does not show leading zeroes, does not have a decimal point and will not show values less than a full unit (kilometer or mile). The
unit of measure (km or miles) for the odometer display is not shown in the VFD. The unit of measure for the instrument cluster odometer/trip odometer
is selected at the time that it is manufactured, and cannot be changed. The odometer has a RENTAL CAR mode, which will illuminate the odometer
information in the VFD whenever the driver side front door is opened with the ignition switch in the OFF or ACCESSORY positions.
During daylight hours (exterior lamps are OFF) the odometer VFD is illuminated at full brightness for clear visibility. At night (exterior lamps are ON),
the VFD lighting level is adjusted with the other cluster general illumination lamps using the panel lamps dimmer thumbwheel of the headlamp switch on
the instrument panel. However, a PARADE mode position of the thumbwheel allows the VFD to be illuminated at full brightness if the exterior lamps
are turned ON during daylight hours.
The odometer/trip odometer VFD, the trip odometer switch and the trip odometer push button are serviced as a unit with the instrument cluster.
