Driver Controls Control Panels DataStar Display Module NOTE: Western Star vehicles are offered with various chassis and body components. Because of the various options, the information contained in this chapter may not apply to every vehicle. The DataStar display module, shown in Fig. 4.3 , dis- plays operator-selected vehicle and engine param- eters for the time and distance of up to six different trips. Four keys allow the operator to scroll through the vehicle parameters, set the time and alarm, and reset trip logs.
The right-hand dash control panel contains a face vent, the majority of the driver switch controls, auto- mated and automatic transmission controls, and the DataStar display module, if equipped. If there is a dash-mounted air intake restriction indicator, it is often mounted on the right-hand panel as well. Battery input powers the DataStar display and must be continuously connected for the clock to maintain the time. When the ignition is on, the DataStar is fully functional. Turning the ignition off puts the DataStar display into sleep mode, and the display turns off to reduce current drain.
When the ignition is turned on again, the DataStar display will come up in the same mode it was in when the ignition was turned off. The ignition switch control panel (below the right- hand dash panel) contains the ignition switch, ciga- rette lighter, and climate controls. The lightbar and instrument gauges are located be- hind the steering wheel. Ignition Switch NOTE: Control locations may vary from those shown depending on vehicle options. The ignition switch has four positions: OFF, ACCES- SORY, ON, and START. See Fig. 4.4 .
Figure 4.1 shows typical lower dash panel controls; figure 4.2 shows typical upper dash panel controls 1 2 3 4 5 6 7 8 9 10 20 16 17 18 19 21 f610499 06/06/2001 11 12 13 14 15 1. Headlights 2. Dash Lights 3. Clearance Lights 4. Trailer Clearance Lights 5. Driving Lights 6. Backup Lights (sometimes labeled Hook Up Lights ) 7. Fog Lights 8. Wipers On/Intermittent 9. Wipers High/Low 10. Windshield Washer 11. Interaxle Lock 12. Differential Lock 13. Lift Axle 14. Fifth Wheel Slide Control 15. Suspension Height 16. Engine Brake 17. Engine Brake Speed 18. Engine Brake Speed 19. Blank 20. Parking Brake Control Valve 21. Trailer Air Supply Valve Fig. 4.1, Lower Dash Control Panel 4.1