DESCRIPTION & OPERATION
The cruise control system is electronically controlled and vacuum actuated. System components include a control unit, vacuum pump, actuator, cruise control switch, clutch pedal switch, accelerator pedal switch, cruise indicator light, diode (if equipped), inhibitor switch (A/T), idle switch, overdrive switch, stoplight switch, throttle position sensor, vehicle speed sensor and A/T control unit.
The system also has self-diagnostic capability. When self-diagnostic mode is activated, each switch and sensor is checked for defects. If cruise control system has been canceled without using a normal cancel method, a code will be set and stored in control unit. Codes can be retrieved to help determine which circuit is malfunctioning.