RAM 2500 Truck 2WD V8-5.7L (2008)
Volt Meter Gauge: Description and Operation
Description
DESCRIPTION
A voltage gauge is standard equipment on all instrument clusters except the ST vehicles with a gasoline engine. This gauge is located in the upper left
quadrant of the instrument cluster, above the fuel gauge. This gauge consists of a movable gauge needle or pointer controlled by the instrument cluster
circuitry and a fixed 90 degree scale on the cluster overlay that reads left-to-right from L (or Low) to H (or High) for gasoline engines. On vehicles
with a diesel engine, the scale reads from 8 to 18 volts. An International Control and Display Symbol icon for Battery Charging Condition is located
on the cluster overlay, directly below the right end of the gauge scale.
The voltage gauge graphics are black against a white field except for a single red graduation at each 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 general illumination lighting with
the exterior lamps turned ON, the black graphics appear blue-green and the red graphics still appear red. The gauge needle has internal optical
illumination. Gauge illumination is provided by a replaceable incandescent bulb and holder unit located on the instrument cluster electronic circuit
board.
The voltage gauge is serviced as a unit with the instrument cluster.
