Outline
The trip computer system displays the instantaneous fuel economy, average fuel economy, remaining distance to empty, and the average vehicle speed.
The instrument cluster performs trip computer system fail-safe..
Function
The instrument cluster controls the trip computer system based on the following CAN signals.
Vehicle speed signal, fuel injection amount signal, traveled distance signal sent from PCM
Fuel gauge sender unit voltage signal sent from rear body control module (RBCM)
Steering switch operation signal sent from start stop unit
Instantaneous fuel economy calculation function
The instrument cluster calculates the instantaneous fuel economy based on the fuel consumption and traveled distance over the past 2 s when the vehicle speed is at the set value or more. In addition, the calculation results are updated every 2 s.
Instantaneous fuel economy formula
When there is no fuel consumption, such as during engine braking, <0.0 L/100 km> or <99.9 mpg> is displayed.
The instantaneous fuel economy is displayed when the vehicle speed is 7.06 km/h {4.39 mph} or more, and <--- L/100 km> or <--- mpg> is displayed when the vehicle speed is 4.24 km/h {2.63 mph} or less.
Average fuel economy calculation function
The instrument cluster calculates the average fuel economy based on the traveled distance and fuel consumption from connecting the battery or resetting the average fuel economy. In addition, the calculation results are updated every minute.
Average fuel economy formula
If the cumulative traveled distance is 0 km, <0.0 mpg> or <99.9 L/100 km> is displayed.
If the INFO switch is pressed for approx. 1.5 s or more while the average fuel economy is displayed, the cumulative fuel economy and cumulative traveled distance data are reset.
If tripmeter A is reset, the average fuel economy is also reset.
During the 1 min period after the data has been reset, <--- mpg> or <--- L/100 km> is displayed.
Remaining travel distance calculation function
The instrument cluster calculates the remaining travel distance based on the instantaneous fuel economy, cumulative fuel economy and the fuel tank level. In addition, the calculation results are updated every second.
Remaining travel distance formula
When the fuel tank level reaches 6 L {2 US gal, 1 Imp gal} or less, the instrument cluster displays <0 km> or <0 miles>.
Average vehicle speed calculation function
The instrument cluster calculates the average vehicle speed based on the cumulative traveled distance and cumulative traveled time from connecting the battery or resetting the average vehicle speed. In addition, the calculation results are updated every 10 s.
Average vehicle speed formula
If the INFO switch is pressed for approx.1.5 s or more while the average vehicle speed is displayed, the average vehicle speed (cumulative traveled distance and cumulative traveled time data) is reset.
During the 1 min period after the data has been reset, <--- km/h> or <--- mph> is displayed.
Structural view
System wiring diagram
Operation
When the ignition is switched ON (engine on), the instrument cluster receives (1) the vehicle speed signal, fuel injection amount signal, traveled distance signal from the PCM, the fuel gauge sender unit voltage signal from the rear body control module (RBCM), and the steering switch operation signal from the start stop unit.
The instrument cluster microcomputer calculates (2) the instantaneous fuel economy and average fuel economy based on the received data.
The instrument cluster microcomputer displays (3) the calculated results in the trip computer display screen.
Trip computer display switching operation
The instrument cluster switches the trip computer display content as follows based on the steering switch operation signal from the start stop unit.
Display screen table
Refrigerant Pressure Sensor Inspection [Full Auto Air Conditioner]
1. Install the manifold gauge.
2. Verify the high-pressure side reading of the manifold gauge.
3. Measure the terminal voltage at PCM terminal 2BB, 2AX and 2AJ
4. Using the graph below, measure and verify the terminal voltages at 2AX.
5. Follow the PCM inspection when measuring the other te ...
Wheels And Tires
Outline
An adhesive-type balance weights has been adopted to the outer side of the
aluminum alloy wheels. Due to this, a stylish wheel design is realized.
In consideration of the environment, steel balance weights have been adopted
to reduce the use of lead in the vehicle.
...
Restraints
Abbreviations
AAS
Active Adaptive Shift
ABS
Antilock Brake System
ABDC
After Bottom Dead Center
ACC
Accessories
AFS
Adaptive Front Lighting System
...