Section 126 (Instrument Cluster): Tachometer: Description
A tachometer is standard equipment on all instrument clusters. The tachometer is located to the left of the speedometer, just to the left of center in the instrument cluster. The tachometer consists of a movable gauge needle or pointer controlled by the instrument cluster circuitry and a fixed 210 degree scale on the gauge dial face. The tachometer reads left-to-right from "0" to "7" for gasoline engines. On vehicles with a diesel engine, the scale reads from "0" to "5".
On all models except SRT-10, the text "RPM X 1000" is imprinted on the cluster overlay directly below the hub of the tachometer needle. On SRT-10 models the text "X 1000 RPM" is imprinted on the cluster overlay directly below the hub of the tachometer needle. This text identifies that each number on the tachometer scale is to be multiplied by 1000 rpm (Fig 1 ). On all models except SRT-10 the tachometer graphics are black against a white field, making them clearly visible within the instrument cluster in daylight. On SRT-10 the tachometer graphics are black against a silver field except for red graduations beginning at the "6" increment and at each 250 rpm increment to the "7" at the high end of the scale. The SRT-10 tachometer also includes the text, "Premium Unleaded Fuel Only." In either case, the gauge graphics are clearly visible within the instrument cluster in daylight.
When illuminated from behind by the panel lamps dimmer controlled cluster 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 replaceable incandescent bulb and holder units located on the instrument cluster electronic circuit board. The tachometer is serviced as a unit with the instrument cluster.