Liberty 2WD V6-3.7L (2008)
Tachometer: Description and Operation
Description
DESCRIPTION
A tachometer is standard equipment on all instrument clusters. The tachometer is located to the right of center of the instrument cluster, between the
speedometer and the engine coolant temperature gauge. The tachometer consists of a movable gauge needle or pointer controlled by the instrument
cluster circuitry and a fixed 200 degree scale on the gauge dial face that reads left-to-right either from 0 to 7 for vehicles with a gasoline engine, or from
0 to 6 for vehicles with a diesel engine. The text RPM X 1000 imprinted on the cluster overlay directly below the center of the scale and above the hub
of the tachometer needle identifies that each number on the tachometer scale is to be multiplied by 1000 rpm.
The tachometer graphics are white, gray and black against a black field except for several red graduations that designate the red line area at the high end
of the gauge scale, making them clearly visible within the instrument cluster in daylight. When illuminated from behind by the panel lamps dimmer
controlled cluster illumination lighting with the ignition switch in the ON or START positions or with the exterior lamps turned ON, the graphics retain
their unilluminated colors and appearance. The orange gauge needle has internal optical illumination. Gauge illumination is provided by Light Emitting
Diode (LED) units soldered onto the instrument cluster electronic circuit board.
The tachometer is serviced as a unit with the instrument cluster.
