System Description
SYSTEM
INFORMATION DISPLAY : System Description
DESCRIPTION
- The combination meter receives signals necessary for controlling the operation of the information display from each unit, sensor and switch.
- The combination meter incorporates a trip computer that displays the warning/information according to the information received from each unit, sensor and switch.
- The combination meter shows the following functions on the information display.
- Odo/trip meter
- Shift position indicator
- Trip computer
- Interrupt indication
- Warning check indication
- Setting
ODO/TRIP METER
- The ABS actuator and electric unit (control unit) reads the rectangular wave signal provided by the wheel sensor and transmits the vehicle speed signal to the combination meter via CAN communication.
- The combination meter converts the vehicle speed signal received via CAN communication to mileage, and it displays the accumulated mileage on the information display.
SHIFT POSITION INDICATOR
MANUAL MODE
- The combination meter receives the following signal and transmits the signal to TCM via CAN communication.
- TCM judges a shift position, manual mode, and manual mode information, based on a signal received from the combination meter via CAN communication and transmits the following signals to the combination meter via CAN communication.
- The combination meter activates the shift position indicator, and manual mode information, based on signals received from TCM via CAN communication.
NOTE:
When receiving a manual mode shift refusal signal from TCM via CAN communication, the combination meter blinks the shift position indicator lamp and allows the integrated buzzer to ring a beep tone. For further information, refer to "SHIFT PATTERN CONTROL : System Description" System Description.
NON-MANUAL MODE
- Combination meter inputs non-manual mode signal from A/T shift selector (manual mode switch), and transmits the signals to TCM with CAN communication line.
- TCM transmits shift position signal to combination meter with CAN communication line.
- Combination meter indicates shift position when receiving shift position signal.
TRIP COMPUTER
Current Fuel Consumption
The combination meter calculates current fuel consumption based on the following signals, and the calculated value is displayed on the information display.
NOTE:
- Current fuel consumption on the information display is updated approximately every 0.5 seconds.
- Current fuel consumption on the information display shows 0 l/100km (0 mpg) when vehicle speed is 0 km/h (0 MPH).
Average Fuel Consumption
The combination meter calculates average fuel consumption based on the following signals, and the calculated value is displayed on the information display.
NOTE:
- Average fuel consumption on the information display is updated approximately every 30 seconds.
- Soon after a reset or when the ignition switch is turned ON right after battery removal and installation, "--"
is displayed until after a travel of 30 seconds and approximately 500 m (0.31 mile).
Distance to Empty
The combination meter calculates distance to empty based on the following signals, and the calculated value is displayed on the information display.
NOTE:
- Distance to empty on the information display is updated approximately every 30 seconds.
- When the ignition switch is turned from OFF to ON, "--" is displayed until after a travel of approximately
500 m (0.31 mile).
- The indicated values may not match each other when refueling with the ignition switch ON.
Average Vehicle Speed
The combination meter calculates average vehicle speed based on the following signals, and the calculated value is displayed on the information display.
NOTE:
- Average vehicle speed on the information display is updated approximately every 30 seconds.
- Soon after a reset or when the ignition switch is turned ON right after battery removal and installation, "--"
is displayed until after a 30 seconds.
Travel Time
The combination meter measures and displays travel time (ignition switch ON time).
Travel Distance
The combination meter calculates mileage, based on the following signals and displays the mileage on the information display.
Ambient Temperature
- The combination meter corrects an indicated temperature, based on various signals.
- The combination meter calculates ambient air temperature based on the following signals, and the calculated value is displayed on the information display.
- A temperature indicated soon after the ignition switch is turned ON depends on the time from the ignition switch OFF to ON and a temperature detected by the ambient sensor.
When any condition described below is met, an ambient sensor-detected temperature is indicated.
- Time from the ignition switch OFF to ON greater than or equal to Predetermined time
- Sensor-detected temperature less than Temperature at the last ignition switch OFF
Correction Process (Temperature at the Ignition switch ON)
- A temperature indicated when the ignition switch is ON depends on a vehicle speed, an ambient sensor detected temperature, and traveling time.
The temperature on the information display is corrected to an ambient sensor-detected temperature when the following condition
is met.
- Ambient sensor-detected temperature less than Temperature on the information display
A temperature on the information display is not updated when the following condition is met.
- Ambient sensor-detected temperature greater than or equal to
Temperature on the information display
- Vehicle speed less than or equal to 20 km/h (12 MPH)
A temperature on the information display slowly rises to an ambient sensor-detected temperature when the following condition is
met.
- Ambient sensor-detected temperature greater than or equal to Temperature on the information display
- Vehicle speed greater than or equal to 20 km/h (12 MPH)
A temperature on the information display rapidly rises to an ambient sensor-detected temperature when the following condition
is met.
- Ambient sensor-detected temperature greater than or equal to Temperature on the information display
- Vehicle speed greater than or equal to 20 km/h (12 MPH)
- When driving more than set time
A/C auto amp. connection recognition
- The combination meter judges the A/C auto amp. connection/disconnection, based on an A/C auto amp.
connection recognition signal to judge the presence/absence of the ambient sensor power output.
NOTE:
- After an ignition switch is turned ON, "---" is displayed until after a 2.5 seconds.
- The ambient sensor input value that is displayed on "Data Monitor" of CONSULT is the value before the correction. It may not match the indicated temperature on the information display.
- After removal and installation of the battery and combination meter, an ambient sensor-detected temperature is indicated on the information display.
- Depending on engine heat or heat on the road surfaces, an ambient temperature may be indicated higher than actual one.
INTERRUPT INDICATION
- The combination meter displays an interrupt regarding a warning, alert, and maintenance on the information display, based on signals received from each unit and switch.
- When conditions are satisfied, the normal screen switches to a warning screen to display an interrupt.
Door Open Warning
- When all the following operating conditions are satisfied, the combination meter displays a door open warning on the information display by an interrupt.
- The combination meter judges showing/hiding of "door open warning", according to the signals below:
Parking Brake Release Warning
- When all the following operating conditions are satisfied, the combination meter displays a parking brake release warning on the information display by an interrupt.
- The combination meter judges showing/hiding of "parking brake release warning", according to the signals below:
Low Fuel Warning
- When all the following operating conditions are satisfied, the combination meter displays a low fuel warning on the information display by an interrupt.
*: With the vehicle in a horizontal position
- The combination meter judges showing/hiding of "low fuel warning", according to the signals below:
Low Washer Fluid Warning
- When all the following operating conditions are satisfied, the combination meter displays a low washer fluid warning on the information display by an interrupt.
- The combination meter judges showing/hiding of "low washer fluid warning", according to the signals below:
Fuel Filler Cap Warning
- The combination meter judges showing/hiding of "fuel filler cap warning", according to the signals below:
- For further information, refer to "FUEL FILLER CAP WARNING SYSTEM : System Description" Fuel Filler Cap Warning System.
Low Tire Pressure Warning
- The combination meter judges showing/hiding of "low tire pressure warning", according to the signals below:
- For further information, refer to "System Description" System Description.
Travel Time (Alert)
- When all the following operating conditions are satisfied, the combination meter displays a travel time on the information display by an interrupt.
- The combination meter judges showing/hiding of "travel time", according to the signals below:
Low Ambient Temperature (Alert)
- When all the following operating conditions are satisfied, the combination meter displays a low ambient temperature on the information display by an interrupt.
- The combination meter judges showing/hiding of "low ambient temperature", according to the signals below:
Tire (Maintenance)
- When all the following operating conditions are satisfied, the combination meter displays a tire warning on the information display by an interrupt.
- The combination meter judges showing/hiding of "tire warning", according to the signals below:
Oil Filter (Maintenance)
- When all the following operating conditions are satisfied, the combination meter displays an oil filter warning on the information display by an interrupt.
- The combination meter judges showing/hiding of "oil filter warning", according to the signals below:
Engine Oil (Maintenance)
- When all the following operating conditions are satisfied, the combination meter displays an engine oil warning on the information display by an interrupt.
- The combination meter judges showing/hiding of "engine oil warning", according to the signals below:
Other (Maintenance)
- When all the following operating conditions are satisfied, the combination meter displays an other warning on the information display by an interrupt.
- The combination meter judges showing/hiding of "other warning", according to the signals below:
Meter Illumination Level Indication
When receiving the following signals, the combination meter causes an interrupt on the information display to indicate an illumination level.
WARNING CHECK INDICATION
- The combination meter can cause an interrupt on the information display to indicate a warning, based on signals received from each unit and switch.
- The indicated warning can be checked with "WARNING" during the satisfaction of an interrupt indication condition for each warning.
SETTING
Warning indication timing and time can be set.
Alert
Setting values for travel time, and low ambient temperature can be adjusted to meet the user's needs.
Maintenance
Setting values for engine oil, oil filter, tire, and other maintenance items can be adjusted to meet the user's needs.
Options
Setting values for unit and effect items can be adjusted to meet the user's needs.
Settings-reject Indication
- Regarding settings-reject indications, "SETTING CAN BE OPERATED WHEN STOPPED" is shown on the information display when indication conditions are satisfied.
- When reaching 5 km/h (3.1 MPH) after accelerating from a stopping condition, a settings-reject indication is displayed.
- When reaching less than 1 km/h (0.6 MPH) after decelerating from 5 km/h (3.1 MPH), a settings-reject indication is cancelled to allow settings.
- The combination meter judges a vehicle condition based on the following signals and displays a settings reject indication on the information display.
