System Description

BOARD COMPUTER


System Description


FUNCTION
The board computer can indicate the following items.
- Outside air temperature
- Distance to empty (DTE)
- Trip distance
- Trip time
- Instant fuel consumption
- Average fuel consumption
- Average vehicle speed

OUTSIDE AIR TEMPERATURE INDICATION
The outside air temperature indication is displayed while the ignition switch is in the ON position.
Signal is supplied
- through ambient sensor terminal 2
- to combination meter (board computer) terminal 35.
Indication range is between -22 and 140�F (-30 and 60�C). The indicated temperature is not affected by engine heat. It changes only when one of the following conditions exists.
- When vehicle speed is more than 20 km/h (12 MPH).
- The ignition switch has been turned OFF for more than 3.5 hours.
- When outside air temperature is less than the indicated temperature.

DISTANCE TO EMPTY (DTE) INDICATION
The DTE indication provides the driver with an estimation of the distance that can be driven before refueling.
The DTE is calculated by signals from the fuel level sensor unit (fuel remaining), ECM (fuel consumption) and the ABS actuator and electric unit (vehicle speed). When the battery is disconnected and reconnected, DTE mode will display "---" until the vehicle is driven 0.3 miles (0.5 km).

TRIP DISTANCE
Trip distance is calculated by signal from the ABS actuator and electric unit (vehicle speed). If trip distance is reset, trip time will be reset at the same time.

TRIP TIME
Trip time displays cumulative ignition switch ON time. If trip time is reset, trip distance will be reset at the same time.

INSTANT FUEL CONSUMPTION
Instant fuel consumption indication is calculated by signals from the ABS actuator and electric unit (vehicle speed) and the ECM (fuel consumption). The indication updates instantly while driving.

AVERAGE FUEL CONSUMPTION
Average fuel consumption indication is calculated by signals from the ABS actuator and electric unit (vehicle speed) and the ECM (fuel consumption).

AVERAGE VEHICLE SPEED
Average vehicle speed indication is calculated by running distance and running time. If average vehicle speed is reset, average fuel consumption will be reset at the same time. After resetting, the display will show "---" for
30 seconds.

HOW TO CHANGE/RESET INDICATION
Indication can be changed in the following order by momentarily depressing the board computer button.
Odometer to TRIP A to TRIP B to DTE to Instant fuel consumption to Average vehicle speed to Average fuel consumption to Trip time to .
Holding the switch for more than a second will reset the indication of the currently displayed mode.