The electronic cruise control system is a speed control
system that maintains a desired speed under normal driving conditions. However,
steep grades up or down may cause variations in the selected speeds. The electronic
cruise control system provides the following features:
The cruise control system consists of the following main components:
| • | The cruise control actuator (which contains the control module
and the stepper motor) |
| • | The cruise control cable |
| • | The cruise control release switch |
| • | The lever mounted functional control switches |
| • | The EBTCM (which provides the vehicle speed input) |
An electronic controller and an electric stepper motor in the actuator
function to obtain the desired vehicle cruise operation. The controller monitors
the vehicle speed and operates the stepper motor. The motor then moves a ribbon
which is connected to the cruise control cable and the throttle linkage in
order to maintain the desired cruise speed. The cruise control module contains
a low speed limit which will prevent system engagement below a minimum speed
of 40 km/h (25 mph). The functional control switches on the
turn signal lever control the controller operation.
Description
SET/ACCEL
The SET/ACCEL switch activates the cruise control system which will
only activate if the vehicle speed is at or above 40 km/h (25 mph).
This switch also serves to accelerate the vehicle once the system is engaged.
If the switch is held in the ACCEL position for more than one second, the
system goes into the acceleration mode. The button is held until the desired
speed is reached. When the switch is released, the system will maintain the
desired speed. The SET/ACCEL switch can also be used to tap up the vehicle
speed. Each tap on the switch will increase the vehicle speed in 1.6 km/h
(1.0 mph) increments.
RESUME/DECEL
The RESUME/DECEL switch allows the cruise control system to return to
the last speed setting recorded since the vehicle was last put in PARK, such
as after momentarily braking. All cruise control information is erased when
the vehicle is put in PARK. This switch will only work after an initial speed
has been set using the SET/ACCEL switch. Do not hold the RESUME/DECEL switch
in the RESUME position. This switch also decelerates the vehicle with the
system operating. Holding the switch in the DECEL position lowers the vehicle
speed. When the switch is released, the system will maintain the new cruise
speed. The switch can also be used to tap down the vehicle speed
in the same manner as the SET/ACCEL speed taps up the vehicle speed.
OFF
The OFF switch, located on the turn signal lever, disengages the cruise
control operation. The previous speed setting in the memory is then erased.
