General

Electronic cruise control is a speed control system. The system maintains a desired vehicle speed under normal driving conditions. However, steep grades up or down may cause variations in the selected speeds. The electronic cruise control system has the capability to perform the following functions:
^ Cruise
^ Coast
^ Resume speed
^ Accelerate
^ "Tap-up"
^ "Tap-down"

The main parts of the cruise control system are:
^ Functional control switches
^ Cruise control module assembly
^ Vehicle speed sensor
^ Cruise control release switch assembly
^ Stoplamp switch assembly

The cruise control system uses a cruise control module assembly in order to obtain the desired vehicle cruise operation. The following two important components in the module help to perform this operation:
^ An electronic controller
^ An electric stepper motor

The controller monitors the vehicle speed. The controller operates the electronic stepper motor. The motor moves a band and throttle linkage, in response to the controller, in order to maintain the desired cruise speed. The cruise control module assembly contains a low speed limit. The low speed limit prevents system engagement below a minimum of 40 km/h (25 mph). Functional control switches on the multi-function turn signal lever control the operation of the controller.