VISION
D R I V ERS HANDB O O K
36
Instrument Cluster
The VISION’S instrument cluster is a single unit of all-electronic guages and warn-
ing lights, which receive both analog inputs from such components as the fuel tank
sender and digital signals from components such as the engine and transmission
control modules. A centrally-located Message Display Center displays the odometer
reading, error alerts, and service technician diagnostic information. If the VISION is
equipped with hydraulic brakes, the instrument cluster contains 5 gauges. Buses
equipped with air brakes have two additional gauges indicating primary (front) and
secondary (rear) air pressure.
1. Speedometer. Indicates vehicle speed in miles/hour or kilometers/hour.
2. Tachometer. Indicates engine speed in revolutions per minute times 1000.
3. Message Display Center. Displays additional information to the vehicle op-
erator. See Message Display Center.
4. Fuel Gauge. Indicates fuel level in tank. Fuel gauge bank includes illuminat-
ed Low Fuel Indicator and Low Fuel Pressure Indicator.
5. Coolant Temperature Gauge. Indicates engine coolant temperature and in-
cludes an engine coolant temperature warning indicator.
6. Oil Pressure Gauge. Indicates engine oil pressure and includes an oil pres-
sure warning indicator.
7. Front Air Gauge. Indicates air pressure in front brake reservoir and includes
a low air warning indicator.
8. Rear Air Gauge. Indicates air pressure in rear brake reservoir and includes a
low air warning indicator.
9. Left Warning Bank. Cluster of indicator lamps. See Warning Bank Indicators.
10. Right Warning Bank. Cluster of indicator lamps. See Warning Bank Indica-
tors.
11. Message Display Center Control Panel. Two buttons which activate and
toggle the menus of the Message Display Center. These buttons also serve as
an Instrument Panel Dimmer, see Dimmer Adjustment.
12. Headlight Highbeam Indicator.
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