System Outline

The cruise control system is a constant vehicle speed controller with which it is possible to automatically adjust the opening of the engine throttle valve without depressing the accelerator pedal, but by operating a switch on the instrument panel instead.

1. Set Operation 

   When the ON-OFF SW is turned on, the system begins the preparations necessary for the cruise control and turns on the indicator light in the combination meter.

2. Set Speed Control 

   When the - SET SW is pressed while the cruise control SW is turned on and the vehicle is being driven, the vehicle will be maintained at the speed at which the - SET SW is released.

3. Coast Control 

   If the - SET SW is held down while driving with the cruise control active, the engine control module adjusts the throttle valve to gradually and continually decelerate the vehicle. Every time the - SET SW is pressed momentarily, the vehicle will be decelerated approximately 1.5 km/h.

4. Accel Control 

   If the + RES SW is held down while driving with the cruise control active, the engine control module adjusts the throttle valve to gradually and continually accelerate the vehicle. Every time the + RES SW is pressed momentarily, the vehicle will be accelerated approximately 1.5 km/h.

5. Resume Control 

   If the vehicle speed is above the low speed limit (Approximately 40 km/h, 25 mph) and the cruise control has been cancelled, pressing the + RES SW will accelerate the vehicle to the speed which was set before the cruise control was cancelled.

6. Manual Cancel Mechanism 

   If any of the following signals is received while driving with the cruise control active, the cruise control will be cancelled.

   * The stop light SW is turned on.

   * The CANCEL SW is turned on.

   * The ON-OFF SW is turned off.

   * Gear is shifted from D position to a position other than D.

7. Auto Cancel Function 

   If any of the following conditions is encountered, the cruise control is automatically cancelled.

   * The stop light SW wiring is faulty or short-circuited.

   * The vehicle speed signal is faulty.

   * The electronically controlled throttle malfunctions.

8. Overdrive Control Function 

   The overdrive may be disabled if the vehicle is climbing a hill while driving with the cruise control active. After the overdrive control has been cancelled, if the vehicle speed exceeds the overdrive return speed (Set speed minus 2 km/h) and it is decided that the slope is finished, the vehicle returns to the overdrive control mode again.