GENERAL INFORMATION



The cruise control system, which provides the constant speed driving without depressing the accelerator pedal at a vehicle speed determined by the driver (within the range from approx. 40 to 200 km/h).


CONSTRUCTION DIAGRAM





COMPONENTS AND FUNCTIONS


Component
Function
ABS-ECU <Vehicles without ASC> or ASC-ECU <Vehicles with ASC>
Outputs the cruise control cancel signal to the engine-ECU.
Accelerator pedal position sensor
Informs the engine-ECU of the accelerator pedal depression.
Cruise control indicator lamp <standard meter> or cruise control display screen <high contrast meter>
When the cruise control ON/OFF switch is pressed, a lamp will illuminate or a screen will be displayed to inform the driver that the cruise control system is active.
Speed limiter display screen
When the speed limiter ON/OFF switch is pressed, a screen will be displayed to inform the driver.
Cruise control switches
Cruise control ON/OFF switch
Power switch for cruise control system.
Speed limiter ON/OFF switch
Turn ON/OFF the speed limiter.
RES + switch

  • Vehicle speed is set with the RES + switch and SET - switch.
  • Set vehicle speed of speed limiter is set with the RES + switch and SET - switch.

SET - switch
CANCEL switch

  • Cancels the constant speed driving.
  • Cancel speed limiter in the activated mode.

CVT-ECU <Petrol engine>

  • Controls the CVT based on the CVT control signal from the engine-ECU.
  • The selector lever "N" position signal from the inhibitor switch is sent to the engine-ECU.
  • Outputs the signal from the secondary pulley speed sensor to the engine-ECU.

A/T-ECU <Diesel engine>

  • Controls the automatic transmission shifting based on the shift control signal from the engine-ECU.
  • The selector lever "N" position signal from the inhibitor switch is sent to the engine-ECU.
  • Outputs the signal from the secondary pulley speed sensor to the engine-ECU.

Diagnosis connector
If the M.U.T.-III is connected, the diagnosis code and data list from the engine-ECU can be read.
Engine-ECU

  • Based on the input signal from each sensors and switches, the throttle opening angle indication signal is sent.
  • Based on the input signal from each sensors and switches, the CVT control signal is sent to the CVT-ECU. <Petrol engine>
  • Based on the secondary pulley speed sensor signal from the CVT-ECU, it calculates the vehicle speed. <Petrol engine>
  • Based on the selector lever "N" position signal from the CVT-ECU, it cancels constant speed driving. <Petrol engine>
  • Based on the input signal from each sensors and switches, the CVT control signal is sent to the A/T-ECU. <Diesel engine>
  • Based on the secondary pulley speed sensor signal from the A/T-ECU, it calculates the vehicle speed. <Diesel engine>
  • Based on the selector lever "N" position signal from the A/T-ECU, it cancels constant speed driving. <Diesel engine>
  • To the cruise control indicator lamp, the cruise control system ON/OFF signal is sent.
  • The diagnosis codes and data list of the cruise control system is sent to the diagnosis connector.

Inhibitor switch <CVT, A/T>
The constant speed driving is cancelled by the selector lever operation, the "N" position is detected.
Clutch switch <M/T>
Because the constant speed driving is cancelled by the clutch operation, the clutch pedal status is detected.
Stop lamp switch

  • The constant speed driving is cancelled by the brake operation, the brake pedal operation is detected.
  • As for the stop lamp switch, two built-in switches, the stop lamp switch which is also used for the stop lamp illumination and the brake switch which is used exclusively for the cruise control, are integrated, and thus the reliability is enhanced.

Throttle valve control servo <Petrol engine>
The throttle valve opens and closes in response to the throttle angle control signal from the engine-ECU.
Throttle position sensor <Petrol engine>
Informs the engine-ECU of the throttle valve opening angle.
Fuel injection system <Diesel engine>
Amount of fuel consumption control signal from engine-ECU.