Cruise Control Systems: Description
WARNING:
Deactivate air bag system before performing any service operation. See AIR BAG RESTRAINT SYSTEMS article.
DO NOT apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.
Cruise control system consists of Engine Control Module (ECM), throttle body assembly, vehicle speed sensor, cruise control switch, stoplight switch, park/neutral switch and related wiring. See Fig 1.
System allows vehicle to cruise at a desired speed greater than 25 MPH. Speed control will cancel when brake pedal is depressed, CANCEL switch is activated or transmission shift lever is moved to any position other than "D" position. If vehicle speed slows to less than 25 MPH or drops 10 MPH less than preset speed, speed control will also cancel.