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
Odometer/Tripmeter
Purpose
The odometer/tripmeter notifies the user of the total travel distance or
the traveled distance over a specific interval.
Function
The instrument cluster calculates the traveled distance based on the traveled
distance signal from the PCM and displays it.
The ...
Personalization Features
The following systems can be customized.
When performing a customized setting, refer to the referenced section for
the detailed setting procedure.
Security And Locks
NOTE:
There are two types of customization procedures; one using the M-MDS and
the other using the ...
Automatic Transaxle Warning Light [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The automatic transaxle warning light illuminates when the transaxle has
malfunction.
Construction
The automatic transaxle warning light is built into the instrument cluster.
Operation
If the transmission has a malfunction, the TCM sends an ...