General Description

Electronic cruise control is a speed control system which 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 cruise, coast, resume speed accelerate and �tap-up" and tap-down.

The main parts of the cruise control system are the functional control switches, cruise control module assembly, vehicle speed sensor and cruise control release switch and stoplamp switch assemblies.

The cruise control system uses a cruise control module assembly to obtain the desired vehicle cruise operation. Two important components in the module assembly help to do this. One is an electronic controller and the second is an electric stepper motor. The controller monitors the vehicle speed and operates the electronic stepper motor. The motor moves a band and throttle linkage, in response to the controller, to maintain the desired cruise speed. The cruise control module assembly contains a tow speed limit which will prevent system engagement below a minimum speed of 40 km/h (25 mph). The operation of the controller is controlled by functional control switches located on the multi-function turn signal lever.

Cruise control release switch and stoplamp switch assemblies are provided to disengage the cruise system. The switch assemblies are mounted on the brake pedal bracket assembly. When the brake pedal assembly is depressed, the cruise control system is electrically disengaged and the throttle is returned to the idle position.