General Information

cen dm 02.00.001

The instrumentation control unit (ICU) provides the driver with engine and vehicle information. It is comprised of standard and optional gauges, an audible warning, a driver message center, and a lightbar containing warning and indicator lamps (also known as telltales). Warning and indicator lamps illuminate in red (danger), amber (caution), green (status advisory), or blue (high-beam headlights activated).

Century Class vehicles are equipped with either an ICU4M (see Fig.) or ICU2M (see Fig.).

The following headings in this chapter provide additional information and operating instructions for ICU components:

  • "Warning and Indicator Lights"

  • "Driver Message Center"

  • "Instruments"

  1. Engine Oil Pressure Gauge

  2. Engine Coolant Temperature Gauge

  3. Engine Oil Temperature Gauge

  4. Battery Voltage Gauge

  5. Turbo Boost Air Pressure Gauge

  6. Pyrometer

  7. Dash Message Center

  8. Warning and Indicator Lights

  9. Tachometer

  10. Speedometer

  11. Primary Air Pressure Gauge

  12. Secondary Air Pressure Gauge

  13. Fuel Level Gauge

  14. Transmission Fluid Temperature Gauge

  15. Forward Drive Axle Temperature Gauge

  16. Rearmost Drive Axle Temperature Gauge

Fig. 1, ICU4M Instrument Cluster

  1. Main Dash Panel

  2. Lightbar

  3. Driver Message Center

  4. Warning and Indicator Lights

Fig. 2, ICU2M Instrument Cluster

Note:
Parent topic: Instrumentation Control Units
Document Number: 0000117935
Manual Publication Date: 2024-05-13
Topic Publication Date: 2024-06-06