2010 Electronic V-MAC IV Vehicle Mgmt,Control w-Co-Pilot Display Operator's Manual

2010 Electronic V-MAC IV Vehicle Mgmt,Control w-Co-Pilot Display Operator's Manual
This manual contains information concerning the operation and function of the Electronic vehicle management and control (V-MAC) IV Vehicle Management and Control with Co-Pilot Display. The information in this manual applies to vehicles built April 2010 and later. Please keep this manual in the vehicle at all times.

Gauge Driver Module (GDM)
The vehicle management and control (V-MAC) IV (GDM) is a black box controller used in the LEU and MRU model chassis. The GDM contains a warning light bar, an hour meter located in the tachometer and an odometer located in the speedometer. A separate push button is available to toggle through different functions such as to retrieve fault codes and view trip information.

The GDM provides the following information:

  1. Air Brake Application
  2. Air Cleaner Restriction
  3. Air Suspension Pressure
  4. Axle Oil Temperature
  5. Brake Wear
  6. Engine Coolant Temperature (ECT) (via engine control module (ECM))
  7. Engine and Vehicle Speed Display
  8. Engine Exhaust Gas Temperature (EGT)
  9. Fuel Level
  10. High Beam Status
  11. High Engine EGT
  12. Engine Oil Pressure (via ECM)
  13. Primary and Secondary Air Pressure
  14. Speedometer and Tachometer Outputs

Cab and Dashboard Switches
Various functions of the vehicle management and control (V-MAC) IV system are controlled by the operator through switches located on the dashboard (CHU/CXU/GU model shown in Figure 8). These functions include:

  1. Cruise Control
  2. Daytime Running Lights Overrides (Optional)
  3. Engine Brake Operation (Optional)
  4. Engine Speed (RPM) Control
  5. Exhaust Aftertreatment System
  6. Fan Override (Optional)
  7. Idle Shutdown Override Operation (Optional)
  8. Integrated Temp-A-StartTM (Optional)
  9. PTO Operation

In addition to these operator-selectable switches, additional switches provide information to the Vehicle Electronic Control Unit (VECU) through normal driving activities such as applying the service brakes, parking brakes or disengaging the clutch. The location of these switches is as follows:

  1. Clutch pedal position (CPP) switch
  2. Parking brake switch, located in line within the parking brake circuit
  3. Service brake switch, located in line within the brake system

Electronic Malfunction Indicator
The electronic malfunction indicator, amber in color, illuminates to alert the driver of an electrical problem with the vehicle management and control (V-MAC) IV system. The vehicle management and control (V-MAC) IV system does a self-test when the ignition key is turned to the ON position. The electronic malfunction indicator stays on while this test is being performed (approximately six seconds). After the self-test is completed, the indicator will turn off and remain off unless a problem is detected by vehicle management and control (V-MAC) IV. If the indicator turns on while the vehicle is being driven, vehicle management and control (V-MAC) IV has detected a problem. In most circumstances, the vehicle will operate even though the indicator is on; however, engine performance may be affected.

Electronic V-MAC IV Vehicle Mgmt,Control w-Co-Pilot Display Operator's Manual

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