Cruise control is a speed control system that
maintains a desired vehicle speed under normal driving conditions. Steep grades
up or down may cause variations in the selected speeds. The cruise control
system has the following capabilities:
The cruise control system consists of the following main components:
| • | The turn signal and multi-function switch |
| | This switch includes an ON-OFF-R/A switch and a SET/COAST switch. |
| • | The cruise control module |
| • | The cruise control cable |
| • | The vehicle speed sensor |
| • | The cruise control release switch |
| | The cruise control switch disengages the cruise system. |
| | The stoplamp switch disengages the cruise system. |
The cruise control release and the stoplamp switches are mounted on
the brake pedal bracket. When the brake pedal is pressed, the cruise control
system is electrically disengaged by these switches. The throttle returns
to the idle position.
Cruise Control Module
The cruise control system uses a cruise control module to obtain and
hold any desired vehicle cruise speed above a minimum speed of 40 km/h
(25 mph). The module contains the following components:
| • | An electronic controller |
| | The electronic controller monitors the following operations: |
| - | The turn signal and multifunction inputs |
| - | The cruise control release inputs |
| - | The brake switch inputs |
| - | Operates the electric stepper motor |
| | The stepper motor moves the internal band in response to the controller
in order to maintain the desired cruise speed. The cruise control cable links
the internal band to the throttle lever. |
Cruise Control Cable
The cruise control cable is adjustable. The cable provides a physical
connection between the cruise control module and the engine throttle lever.
Vehicle Speed Sensor
The vehicle speed sensor (VSS) is mounted to the automatic transaxle.
The VSS provides a low voltage alternating current (AC) signal to the powertrain
control module (PCM). The PCM converts the AC signal to a pulse width modulated
direct current (DC) signal. The signal is sent to the cruise control module
at a rate of 4,000 pulses per mile.
Cruise Control Release Switch and Stoplamp Switch
The cruise control release switch and the stoplamp switch are used in
order to disengage the cruise control system. The switches are mounted on
the brake pedal bracket. The switches disengage the system electrically
when the brake pedal is pressed.
