DESCRIPTION
An engine coolant temperature gauge is standard equipment on all instrument clusters. This gauge is located on the right side of the instrument cluster, just right of the tachometer. The gauge consists of a movable gauge needle or pointer controlled by the instrument cluster circuitry and a fixed 90 degree gauge scale on the cluster overlay that reads left-to-right from C (or Cold) to H (or Hot) for all vehicles except SRT8. On SRT8 the scale reads from 80° C to 120° C in markets where a metric instrument cluster is specified, or from 185° F to 245° F in all other markets. An International Control and Display Symbol icon for Engine Coolant Temperature is located on the cluster overlay, directly above the hub of the gauge needle.
On all vehicles except SRT8 the engine coolant temperature gauge graphics are white against a black field except for two red graduations at the high end of the gauge scale. On SRT8 the gauge graphics are gray against a black field except for two red graduations at the high end of the gauge scale. 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 white text and graphics still appear white, the gray text and graphics still appear gray, and the red graphics still appear red. The red 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 engine coolant temperature gauge is serviced as a unit with the instrument cluster.