Monaco V6-182 3.0L SOHC (1990)
Maintenance Reminder Control Module: Technical Service Bulletins
Vehicle Maintenance Monitor - Operation/Diagnosis
NO.: 08-08-90
DATE:
March 26,1990
GROUP:
INSTRUMENT PANEL
MODELS:
1990 Premier/Monaco Service Manual
VEHICLE MAINTENANCE MONITOR (VMM)
GENERAL INFORMATION
Fuse 2 applies voltage to the vehicle maintenance monitor at all times. This allows the monitor to remember the vehicle's present status when ignition is
OFF. Fuse 8 applies voltage to the vehicle maintenance monitor to turn on the LCD display and begin monitoring the inputs to obtain information.
The conditions monitored are the brake and taillight bulbs, coolant level, windshield washer fluid level, the vehicle speed and the door ajar inputs. The
monitor also receives signals from the lamp outage module. If the vehicle is started and no conditions are present, "monitor" will be displayed. Otherwise
one of the 9 monitored system messages or one of the 6 service reminder messages is displayed. If the VMM detects more than one condition it will list
the highest priority message first. It will then cycle through a list of all existing faults, and return to the abbreviated message for the highest priority fault.
All available VMM messages and their abbreviations are listed in order of priority as follows:
Door Ajar (DOOR) -
The appropriate door(s) is illuminated on the vehicle outline. Close door(s) to reset.
Brake Lamp Out (LAMP) -
Is activated when the brakes are applied and a bulb is burned out. To reset. replace bulb.
Tail Lamp Out (LAMP) -
Is activated when the tail lamps are on and a bulb is burned out. To reset, replace bulb.
Coolant Fluid Low (COOLANT) -
Add engine coolant as required to reset.
Washer Fluid Low (WASHER) -
Add windshield washer fluid as required to reset.
Service Transmission (TRANS) -
Indicates fault in the automatic transmission of 4 cylinder vehicles.
Perform Service (SERVICE) -
Is activated at 7,500 miles (12000 kms) intervals to indicate that regular service and maintenance is due. Perform required service then press RESET
button until the sound of the beep to clear the display.
Coolant Sensor Fault (SENSOR) -
See diagnostics.
Washer Sensor Fault (SENSOR) -
See diagnostics.
Miles (KMS) To Service -
Indicates distance to the next scheduled service.
When a condition is present, the monitor also sends a signal to the chime module. The vehicle maintenance monitor uses the vehicle speed input to
calculate the distance traveled. It automatically notifies the driver, after a pre-programmed number of miles has elapsed, to perform a particular service
on the vehicle. When the lamps are on, the vehicle maintenance monitor display intensity is adjustable by using the panel dimmer switch. The monitor
receives a signal from the English/Metric switch to display either English or Metric measurements. The vehicle maintenance monitor also has a
self-diagnostics. The vehicle maintenance monitor checks the monitor, the sensors and their circuits without the use of any special tools.
